Honeycomb structure and design parameter debugging method of honeycomb structure
By introducing local resonant components, including a support frame and a resonator, into the cellular structure, the problem of low static stiffness and the difficulty in achieving both lightweight requirements of the cellular structure is solved, resulting in stronger energy absorption performance and a lightweight design.
Patent Information
- Application Number
- CN202511210173.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2025-12-02
AI Technical Summary
Existing honeycomb structures have low static stiffness due to high porosity. Adding support beams increases weight and fails to meet the requirements for lightweighting. Too few support beams result in insufficient energy absorption performance. Existing solutions cannot balance energy absorption performance and lightweighting requirements.
Local resonant components, including a support frame and a resonator, are introduced into the cellular structure to enhance the overall stiffness and impede energy propagation. The number of local resonant components is adjusted in conjunction with a lightweight design.
The energy absorption performance of the honeycomb structure has been enhanced, while also taking into account the need for lightweight design, thus improving the energy absorption effect without increasing the weight.
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Figure CN121051997A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of materials technology, and in particular to a honeycomb structure and a method for adjusting the design parameters of the honeycomb structure. Background Technology
[0002] Honeycomb structures are porous structures composed of regular hexagonal units. They have the functions of optimizing material properties and enhancing mechanical properties. Honeycomb structures are widely used as energy absorption materials in aerospace, new energy vehicles, high-speed trains and marine engineering, playing a key role in ensuring passenger safety.
[0003] Existing honeycomb structures have low static stiffness due to their high porosity, which reduces the energy they can absorb through compression. Therefore, when using them, support beams are usually added to the honeycomb structure to enhance its overall stiffness and improve its energy absorption performance.
[0004] However, with the current honeycomb structure, adding too many support beams will increase the weight of the honeycomb structure and fail to meet the lightweight requirements in some scenarios. Adding too few support beams will result in insufficient overall stiffness of the honeycomb structure and low energy absorption performance. It can be seen that the existing solution of adding support beams to the honeycomb structure cannot effectively enhance the energy absorption performance of the honeycomb structure while meeting the lightweight requirements. Summary of the Invention
[0005] The main purpose of this application is to propose a honeycomb structure and a method for adjusting the design parameters of the honeycomb structure, aiming to provide a honeycomb structure with stronger energy absorption performance and the ability to meet the requirements of lightweight design.
[0006] In a first aspect, the present invention provides a honeycomb structure, comprising: a honeycomb frame and a plurality of local resonant components, wherein the honeycomb frame comprises: a plurality of honeycomb cells, and each local resonant component is disposed in a corresponding honeycomb cell; the local resonant component comprises: a support frame and a resonator, wherein the support frame comprises a connecting rod and a resonator fixing ring; The connecting rod is fixedly connected to the cell unit to which it is located, and the resonator is fixedly disposed in the corresponding resonator fixing ring.
[0007] In an optional implementation, the localized resonant component has a chiral structure.
[0008] In an optional implementation, the number of the local resonant components is the same as the number of the cellular cells, with one local resonant component provided in each cellular cell.
[0009] In an optional implementation, the number of local resonant components is less than the number of cellular cells, and the local resonant components are deployed in a plurality of corresponding target cellular cells, which are arranged in a lightweight design within the cellular frame.
[0010] In an optional implementation, a plurality of the target cellular cells are arranged radially within the cellular frame with the midpoint of the cellular frame as the center.
[0011] In an optional embodiment, both the honeycomb frame and the support frame are made of thermoplastic polyurethane, and the resonator is made of stainless steel.
[0012] Secondly, the present invention provides a method for adjusting the design parameters of a honeycomb structure, including: An initial cellular structure model is built based on the initial design parameters of the cellular structure. Based on the preset energy absorption simulation algorithm and the initial honeycomb structure model, the energy absorption performance is simulated, and the energy absorption performance simulation results corresponding to the initial honeycomb structure model are obtained. Based on the energy absorption performance simulation results corresponding to the initial cellular structure model, the design parameters of the initial cellular structure model are adjusted to obtain the design parameters of the cellular structure in any of the aforementioned embodiments.
[0013] In an optional implementation, the step of performing energy absorption performance simulation based on a preset energy absorption simulation algorithm and the initial cellular structure model, and obtaining the energy absorption performance simulation results corresponding to the initial cellular structure model, includes: The initial honeycomb structure model is fixed between two parallel rigid plate models. The bottom rigid plate model is fixedly constrained, and a preset simulation velocity perpendicular to the bottom rigid plate model is applied to the top rigid plate model to obtain the stress-strain relationship during the deformation process of the initial honeycomb structure model. The static compression absorption energy value corresponding to the initial cellular structure model is determined based on the stress-strain relationship.
[0014] In an optional implementation, adjusting the design parameters of the initial cellular structure model based on the energy absorption performance simulation results includes: If the energy absorption performance simulation results meet the first preset condition, adjust the design parameters of the initial honeycomb structure model according to the lightweight design parameters to obtain the lightweight honeycomb structure model; Based on the preset energy absorption simulation algorithm and the lightweight honeycomb structure model, energy absorption performance simulation is performed to obtain the energy absorption performance simulation results corresponding to the lightweight honeycomb structure model. If the simulation results of the energy absorption performance corresponding to the lightweight honeycomb structure model meet the second preset condition, then the design parameters of the lightweight honeycomb structure model shall be used as the design parameters of the honeycomb structure.
[0015] In an optional implementation, the first preset condition includes: the static compression absorption energy value corresponding to the initial honeycomb structure model is greater than a preset static compression absorption energy threshold, and the maximum displacement of the rigid plate model at the bottom is less than a preset displacement threshold. The second preset condition includes: the energy absorption value per unit mass corresponding to the lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the initial honeycomb structure model, and the energy absorption value per unit mass corresponding to the frame structure in the lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the frame structure in the initial honeycomb structure model, and the energy absorption value per unit quantity corresponding to the resonator in the lightweight honeycomb structure model is greater than the energy absorption value per unit quantity corresponding to the resonator in the initial honeycomb structure model.
[0016] Thirdly, the present invention provides a device for adjusting the design parameters of a honeycomb structure, comprising: A module is built to construct an initial cellular structure model based on the initial design parameters of the cellular structure. The simulation module is used to perform energy absorption performance simulation based on the preset energy absorption simulation algorithm and the initial honeycomb structure model, and to obtain the energy absorption performance simulation results corresponding to the initial honeycomb structure model. The adjustment module adjusts the design parameters of the initial cellular structure model based on the energy absorption performance simulation results corresponding to the initial cellular structure model, thereby obtaining the design parameters of any of the cellular structures described in the aforementioned embodiments.
[0017] Fourthly, the present invention provides an electronic device, comprising: a processor, a storage medium, and a bus, wherein the storage medium stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor communicates with the storage medium via the bus, and the processor executes the machine-readable instructions to perform the steps of any of the methods described in the foregoing embodiments.
[0018] Fifthly, the present invention provides a computer-readable storage medium on which a computer program is stored, the computer program being executed by a processor to perform the steps of the method as described in any of the foregoing embodiments.
[0019] The beneficial effects of this application are: The honeycomb structure provided in this application includes a honeycomb frame and multiple local resonant components. The honeycomb frame includes multiple honeycomb cells, and each local resonant component is disposed within a corresponding honeycomb cell. Each local resonant component includes a support frame and a resonator. The support frame includes a connecting rod and a resonator fixing ring. The connecting rod is fixedly connected to the honeycomb cell, and the resonator is fixedly disposed within the corresponding resonator fixing ring. This honeycomb structure, by setting local resonant components including a support frame and a resonator within the honeycomb cells of the honeycomb frame, achieves enhanced overall stiffness of the honeycomb structure through the support frame in the local resonant components. Furthermore, the resonator in the local resonant components, combined with the bandgap characteristics of the honeycomb structure with the local resonant components, jointly hinders the propagation of internal energy when the honeycomb structure is subjected to external impact, thereby enhancing the energy absorption performance of the honeycomb structure. Simultaneously, the number of local resonant components can be adjusted to meet lightweight requirements. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of a honeycomb structure provided in an embodiment of this application; Figure 2 This is a schematic diagram of a honeycomb structure provided in another embodiment of this application; Figure 3 A schematic flowchart illustrating a method for adjusting design parameters of a cellular structure according to an embodiment of this application; Figure 4 This is a schematic diagram of the energy absorption performance simulation corresponding to the static mechanical performance simulation algorithm provided in the embodiments of this application; Figure 5 This is a schematic diagram of the energy absorption performance simulation corresponding to the dynamic mechanical performance simulation algorithm provided in the embodiments of this application; Figure 6 A schematic diagram of a method for adjusting design parameters of a cellular structure provided in another embodiment of this application; Figure 7 A schematic diagram of a design parameter debugging device for a honeycomb structure provided in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.
[0022] Reference numerals: 01-Cellular frame; 02-Local resonant component; 011-Cellular cell; 021-Support frame; 022-Resonator; 0211-Connecting rod; 0212-Resonator fixing ring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0028] In the description of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0030] Honeycomb structures, compared to other structural materials of the same volume and shape, typically absorb more energy during compression, making them widely used in many scenarios requiring energy absorption and cushioning. However, due to the high porosity of the original honeycomb structure, it suffers from low static stiffness, which reduces the energy absorbed through compression. Therefore, current honeycomb structures often add support beams / rods to the original honeycomb cells to improve the overall stiffness and thus energy absorption performance. However, adding too many support beams / rods increases the weight of the honeycomb structure, potentially failing to meet lightweight requirements in some scenarios. Adding too few support beams / rods results in insufficient overall stiffness, failing to significantly improve the energy absorption performance. Thus, simply adding support beams / rods to the original honeycomb cells does not effectively balance the need for enhanced energy absorption performance and lightweight design.
[0031] To address the aforementioned issues, the main objective of this application is to propose a cellular structure and a method for adjusting the design parameters of the cellular structure, aiming to provide a cellular structure with stronger energy absorption performance while also meeting the requirements for lightweight design.
[0032] Figure 1 This is a schematic diagram of a honeycomb structure provided in an embodiment of this application, as shown below. Figure 1 As shown, the cellular structure includes a cellular frame 01 and multiple local resonant components 02. The cellular frame 01 includes multiple cellular cells 011, and each local resonant component 02 is disposed within a corresponding cellular cell 011. Each local resonant component 02 includes a support frame 021 and a resonator 022. The support frame 021 includes a connecting rod 0211 and a resonator retaining ring 0212.
[0033] The connecting rod 0211 is fixedly connected to the cellular unit 011, and the resonator 022 is fixedly disposed in the corresponding resonator fixing ring 0212.
[0034] For example, depending on the specific application scenario of the honeycomb structure, the overall size of the honeycomb structure can be adjusted and determined as needed. For example, the honeycomb structure can be a honeycomb sandwich panel with an overall height of 200.5mm, a width of 290mm, and a thickness of 20mm. However, it is understood that the above content is only a possible example, and the actual types and size parameters of honeycomb structures are not limited to the above examples.
[0035] Similar to the honeycomb structure, the dimensions and parameters of the honeycomb frame 01 in the honeycomb structure can also be adjusted and determined as needed. Taking the honeycomb cell 011 in the honeycomb frame 01 as an example, the honeycomb cell 011 can be a regular hexagonal honeycomb cell 011 surrounded by a honeycomb frame 01 with a side length of 20mm and a wall thickness of 3mm. However, the above data is only a possible example, and the actual dimensions and parameters of the honeycomb frame 01 and the honeycomb cell 011 are not limited here.
[0036] Understandably, the parameters of the aforementioned cellular frame 01 and cellular unit 011 can be determined based on the type and size parameters of the cellular structure. Generally, with other conditions remaining constant, the longer the side length of the cellular unit 011, the larger the size of a single cellular unit 011. This means that a cellular structure with a fixed type and size parameter can accommodate fewer cellular units 011, and the porosity of the cellular structure may be higher. With other conditions remaining constant, the thicker the wall of the cellular frame 01, the stronger the overall stiffness of the cellular structure may be.
[0037] The dimensions of the resonator 022 can also be adjusted and determined according to actual needs. Taking the dimensions in the example above, the corresponding resonator 022 can be a sphere with a diameter of 15mm. Of course, for different types of honeycomb structures, dimensions, and dimensions of different honeycomb frames 01 and honeycomb units 011, the shape and dimensions of the resonator 022 can also be adjusted adaptively, and are not limited to a sphere with a diameter of 15mm.
[0038] Correspondingly, the aforementioned resonator fixing ring 0212 can be, for example, a circular ring with a wall thickness of 2mm. The size parameters of the circular ring can be determined according to the shape and size parameters of the corresponding resonator 022. For example, if the resonator 022 is a sphere with a diameter of 15mm, then the diameter of the circular ring can be slightly larger than 15mm, so as to accommodate and fix the resonator 022. No specific restrictions are imposed here.
[0039] The wall thickness of the connecting rod 0211 can be, for example, 1 mm, but is not limited to this. The length of the connecting rod 0211 can be determined based on the side length of the cell unit 011 and the dimensions of the resonator fixing ring 0212, with the aim of connecting the cell frame 01 and the resonator fixing ring 0212. The specific length can be adjusted according to actual conditions. It is worth noting that... Figure 1 Each support frame 021 shown includes 3 connecting rods 0211, and the connection point between the connecting rod 0211 and the honeycomb frame 01 is located at the corner of the regular hexagonal honeycomb cell 011. However, the actual number of connecting rods 0211 included in the support frame 021 is not limited to 3. It can also be 2, 4, 6, etc., which can be adjusted and determined according to the actual situation. Furthermore, the connection point between the connecting rod 0211 and the honeycomb frame 01 is not limited to the corner of the regular hexagonal honeycomb cell 011. It can also be the side of the regular hexagonal honeycomb cell 011, etc. There are no restrictions here.
[0040] Furthermore, it is understood that the number of the aforementioned local resonance components 02 can be the same as or less than the number of the aforementioned cellular units 011. When the number of the aforementioned local resonance components 02 is the same as the number of the aforementioned cellular units 011, that is, each cellular unit 011 of the cellular structure is provided with a corresponding local resonance component 02. When the number of the aforementioned local resonance components 02 is less than the number of the aforementioned cellular units 011, that is, some cellular units 011 of the cellular structure are provided with a corresponding local resonance component 02. In this case, the specific number and specific arrangement of the local resonance components 02 can be adjusted and determined according to the actual situation, and are not limited here.
[0041] Under normal circumstances, with other conditions remaining unchanged, the larger the proportion of cellular cells 011 with local resonant components 02 in a cellular structure, the better the energy absorption performance of the cellular structure. However, at the same time, the weight of the cellular structure will be heavier. Therefore, the number of local resonant components 02 is less than the number of cellular cells 011. For example, it can enhance the energy absorption performance of the cellular structure to a certain extent without making the cellular structure too heavy. This takes into account the lightweight requirements of the cellular structure and is a design that balances energy absorption performance and lightweight requirements.
[0042] The cellular structure provided in this application embodiment includes a cellular frame 01 and multiple local resonant components 02. The cellular frame 01 includes multiple cellular cells 011, and each local resonant component 02 is disposed in a corresponding cellular cell 011. Each local resonant component 02 includes a support frame 021 and a resonator 022. The support frame 021 includes a connecting rod 0211 and a resonator fixing ring 0212. The connecting rod 0211 is fixedly connected to the cellular cell 011 to which it resides, and the resonator 022 is fixedly disposed in the corresponding resonator fixing ring 0212. This cellular structure achieves enhanced overall rigidity of the cellular structure by setting a local resonance component 02, including a support frame 021 and a resonator 022, within the cellular cell 011 of the cellular frame 01. The resonator 022 in the local resonance component 02, combined with the bandgap characteristics of the cellular structure with the local resonance component 02, jointly hinders the propagation of internal energy when the cellular structure is subjected to external impact, thereby enhancing the energy absorption performance of the cellular structure. At the same time, the requirement for lightweighting can be met by adjusting the number of local resonance components 02.
[0043] Furthermore, please continue to refer to Figure 1 In the above Figure 1 Based on the embodiments, the aforementioned local resonant component 02 may, for example, be a chiral structure. It should be noted that a chiral structure generally refers to a structure whose mirror image cannot be completely superimposed by rotation or translation; that is, the chiral structure and its mirror image have a relationship similar to that of the left and right hands.
[0044] For example, the aforementioned local resonant component 02 has a chiral structure, which can improve the static energy absorption performance of the structure by using a compression-torsional deformation mode during the compression process of the aforementioned honeycomb frame 01, and use the band gap characteristics to hinder energy propagation inside the structure, thereby enhancing the energy absorption performance of the honeycomb structure.
[0045] Optionally, such as Figure 1 As shown, the number of the aforementioned local resonant components 02 is the same as the number of the aforementioned cellular units 011, and one of the aforementioned local resonant components 02 is provided in each of the aforementioned cellular units 011.
[0046] For example, as described above Figure 1Similarly, in the embodiments, the number of the aforementioned local resonant components 02 is the same as the number of the aforementioned cellular cells 011. Each of the aforementioned cellular cells 011 is provided with one of the aforementioned local resonant components 02. For example, this can maximize the energy absorption performance of the corresponding cellular structure, but at the same time, it also maximizes the mass of the cellular structure. Therefore, the number of local resonant components 02 is the same as the number of the aforementioned cellular cells 011. The design scheme of providing one of the aforementioned local resonant components 02 in each of the aforementioned cellular cells 011 is mainly applicable to scenarios where it is necessary to prioritize improving the energy absorption performance of the cellular structure, rather than pursuing or prioritizing lightweight design.
[0047] Figure 2 For a schematic diagram of a honeycomb structure provided in another embodiment of this application, please refer to... Figure 2 In the aforementioned Figure 1 Based on the embodiment, the number of the aforementioned local resonance components 02 is less than the number of the aforementioned cellular units 011. The aforementioned local resonance components 02 are deployed in the corresponding multiple target cellular units 011, and the multiple aforementioned target cellular units 011 are arranged in the aforementioned cellular frame 01 in a lightweight design manner.
[0048] For example, as described above Figure 1 Similarly, in this embodiment, the number of local resonant components 02 is less than the number of cellular cells 011. The local resonant components 02 are deployed in multiple target cellular cells 011, which are arranged in a lightweight design within the cellular frame 01. That is, only the target cellular cells 011 contain the local resonant components 02. This design can, for example, enhance the energy absorption performance of the cellular structure to a certain extent without making the cellular structure too heavy, thus balancing the lightweight requirements of the cellular structure. This is a design that balances energy absorption performance and lightweight requirements. The number and specific arrangement of the target cellular cells 011 corresponding to this lightweight design can be adjusted and determined according to actual conditions, and are not fixed. Figure 2 The number and specific arrangement of the target cellular units 011 shown are limited.
[0049] Furthermore, in the above Figure 2 Based on the embodiment, multiple target cellular units 011 are arranged radially in the cellular frame 01 with the midpoint of the cellular frame 01 as the center.
[0050] Please refer to Figure 2 , Figure 2The example shown is, for instance, a situation where multiple target cellular units 011 are arranged radially around the midpoint of the cellular frame 01. For example, this radial arrangement around the midpoint of the cellular frame 01 can be a biomimetic form based on the structure of a spider web or lotus leaf. The purpose of obtaining the biomimetic form based on the structure of a spider web or lotus leaf is, for example, to enhance the energy absorption performance of the cellular structure by designing a specific arrangement of the target cellular units 011, while keeping other conditions unchanged. However, it is understood that the above example is only one way to determine the arrangement of the target cellular units 011, and does not mean that the arrangement of the target cellular units 011 can only be determined by a biomimetic form, nor does it mean that the arrangement of the target cellular units 011, after being determined by a biomimetic form, can only be radially arranged around the midpoint of the cellular frame 01.
[0051] In addition, in the above Figure 1 Based on the embodiments, the materials of the above-mentioned honeycomb frame 01 and the above-mentioned support frame 021 can be, for example, thermoplastic polyurethane, and the material of the above-mentioned resonator 022 can be, for example, stainless steel.
[0052] For example, the honeycomb frame 01 and the support frame 021 are both made of thermoplastic polyurethane. This may be to facilitate the integral molding of the honeycomb frame 01 and the support frame 021, thereby simplifying the processing technology of the honeycomb frame 01 and the support frame 021, reducing manufacturing difficulty, and enhancing the connection strength between the honeycomb frame 01 and the support frame 021. The resonator 022 is made of stainless steel. This may be to enhance the effect and durability of the resonator 022, but is not limited thereto.
[0053] Of course, the aforementioned honeycomb frame 01, support frame 021, and resonator 022 can also be made of other materials, including but not limited to plastics and metals of different compositions. Furthermore, the materials of the aforementioned honeycomb frame 01 and support frame 021 can be the same or different. The specific materials can be selected and determined according to actual needs, and no restrictions are imposed here.
[0054] Figure 3 This is a schematic flowchart illustrating a method for adjusting design parameters of a cellular structure according to an embodiment of this application. The execution subject of this method can be, for example, a computer or other device with computing power. Please refer to... Figure 3 The method may include: S301. Build an initial cellular structure model based on the initial design parameters of the cellular structure.
[0055] For example, the initial design parameters of the aforementioned cellular structure may refer to, but are not limited to, the following: Figure 1The design parameters of the honeycomb structure in the embodiment, such as the overall height, width, and thickness of the honeycomb unit 011, the side length and wall thickness of the honeycomb unit 011, the diameter of the resonator 022, the wall thickness and length of the resonator fixing ring 0212, and the wall thickness and length of the connecting rod 0211, are used to build an initial honeycomb structure model. For example, it can be implemented based on the simulation platform and simulation software installed on the aforementioned computer or other devices with computing capabilities, but it is not limited to this.
[0056] S302. Based on the preset energy absorption simulation algorithm and the above-mentioned initial cellular structure model, perform energy absorption performance simulation to obtain the energy absorption performance simulation results corresponding to the above-mentioned initial cellular structure model.
[0057] For example, the aforementioned preset energy absorption simulation algorithm may refer to algorithms including but not limited to static mechanical performance simulation algorithms and dynamic mechanical performance simulation algorithms. The aforementioned simulation of energy absorption performance based on the preset energy absorption simulation algorithm and the aforementioned initial honeycomb structure model, and obtaining the energy absorption performance simulation results corresponding to the aforementioned initial honeycomb structure model, may refer to applying external static or dynamic forces to the aforementioned initial honeycomb structure model in the aforementioned simulation platform or simulation software to obtain the deformation and energy absorption of the initial honeycomb structure model during the stress process. However, it is understood that the aforementioned energy absorption performance simulation results are not limited to deformation and energy absorption.
[0058] S303. Based on the simulation results of the energy absorption performance corresponding to the initial honeycomb structure model, adjust the design parameters of the initial honeycomb structure model to obtain the design parameters of any of the honeycomb structures in the aforementioned embodiments.
[0059] For example, the design parameters of the initial honeycomb structure model are adjusted based on the energy absorption performance simulation results corresponding to the initial honeycomb structure model to obtain the design parameters of any of the honeycomb structures in the aforementioned embodiments. For example, the energy absorption performance simulation results corresponding to the initial honeycomb structure model can be compared with the energy absorption performance simulation results of the honeycomb structure model in its original form without the local resonance component 02 under the same conditions. Alternatively, the energy absorption performance simulation results corresponding to the initial honeycomb structure model can be directly compared with a preset performance target (e.g., one or more performance targets such as energy absorption reaching a preset value, deformation not exceeding a preset value, or mass not exceeding a preset value). The design parameters of the initial honeycomb structure model are adjusted based on the comparison results. A corresponding honeycomb structure model is built for each adjusted design parameter, and the energy absorption performance simulation is repeated until the ideal design parameters of the honeycomb structure are obtained as the design parameters of any of the honeycomb structures in the aforementioned embodiments.
[0060] The method for adjusting the design parameters of a cellular structure provided in this application includes: building an initial cellular structure model based on the initial design parameters of the cellular structure; performing energy absorption performance simulation based on a preset energy absorption simulation algorithm and the initial cellular structure model to obtain the energy absorption performance simulation results corresponding to the initial cellular structure model; and adjusting the design parameters of the initial cellular structure model based on the energy absorption performance simulation results to obtain the design parameters of any of the aforementioned cellular structures. This method for adjusting the design parameters of a cellular structure builds an initial cellular structure model using the initial design parameters, enabling energy absorption performance simulation under various conditions using a preset energy absorption simulation algorithm and the initial cellular structure model. This allows for obtaining the energy absorption performance simulation results corresponding to the initial cellular structure model. These simulation results can be used to determine the energy absorption performance of the initial cellular structure model, assisting in adjusting the design parameters until the energy absorption performance simulation results of the cellular structure model corresponding to the adjusted design parameters reach an ideal state. This reduces the difficulty of adjusting the design parameters of the cellular structure and improves the efficiency and accuracy of the adjustment process.
[0061] Furthermore, in the above Figure 3 Based on the embodiments, the above-mentioned simulation of energy absorption performance according to the preset energy absorption simulation algorithm and the above-mentioned initial cellular structure model, and the acquisition of the energy absorption performance simulation results corresponding to the above-mentioned initial cellular structure model, may include: The initial honeycomb structure model is fixed between two parallel rigid plate models. The bottom rigid plate model is fixedly constrained, and a preset simulation speed perpendicular to the bottom rigid plate model is applied to the top rigid plate model to obtain the stress-strain relationship during the deformation process of the initial honeycomb structure model.
[0062] Based on the stress-strain relationship described above, the static compression absorbed energy value corresponding to the initial cellular structure model is determined.
[0063] For example, the initial honeycomb structure model is fixed between two parallel rigid plate models, the bottom rigid plate model is fixedly constrained, and a preset simulation speed perpendicular to the bottom rigid plate model is applied to the top rigid plate model to obtain the stress-strain relationship during the deformation process of the initial honeycomb structure model. For example, it can be the energy absorption performance simulation corresponding to the static mechanical performance simulation algorithm.
[0064] Figure 4 Please refer to the schematic diagram of the energy absorption performance simulation corresponding to the static mechanical performance simulation algorithm provided in this application embodiment. Figure 4An initial honeycomb structure model is fixedly set between the top rigid plate model and the bottom rigid plate model. A preset simulation speed perpendicular to the bottom rigid plate model is applied to the top rigid plate model. For example, a force can be applied to the center point of the top rigid plate model to compress the initial honeycomb structure model at the preset simulation speed. Then, the stress-strain relationship of the initial honeycomb structure model is obtained during the compression process. The energy value absorbed during the compression process of the initial honeycomb structure model can be determined through the stress-strain relationship, that is, the static compression absorbed energy value of the initial honeycomb structure model.
[0065] The static compressive energy absorption value corresponding to the initial cellular structure model can be, for example, the simulation result of the energy absorption performance of the initial cellular structure model, and can be used to evaluate or compare the energy absorption performance of the initial cellular structure model, but is not limited thereto.
[0066] in addition, Figure 5 This is a schematic diagram of the energy absorption performance simulation corresponding to the dynamic mechanical performance simulation algorithm provided in this application embodiment. The above-mentioned energy absorption performance simulation is performed based on the preset energy absorption simulation algorithm and the above-mentioned initial honeycomb structure model to obtain the energy absorption performance simulation result corresponding to the above-mentioned initial honeycomb structure model. In addition to including the energy absorption performance simulation corresponding to the above-mentioned static mechanical performance simulation algorithm, it may also include, for example, the energy absorption performance simulation corresponding to the dynamic mechanical performance simulation algorithm. Please refer to... Figure 5 The energy absorption performance simulation corresponding to this dynamic mechanical performance simulation algorithm can be, for example, as follows: The initial honeycomb structure model is fixed between two parallel rigid plate models. The two ends of the bottom rigid plate model are fixedly constrained. A free-fall model of a preset size (e.g., a small circular ball, the specific size and mass of which can be selected and determined according to the actual situation) is simulated to impact the center point of the top rigid plate model at a preset impact velocity. The displacement-time relationship of the bottom rigid plate model, the total energy absorption of the frame structure in the initial honeycomb structure model, and the total energy absorption of the resonator 022 in the initial honeycomb structure model are obtained. Based on the displacement-time relationship of the rigid plate model at the bottom, the maximum displacement of the rigid plate model at the bottom is determined.
[0067] Based on the total mass of the initial cellular structure model, the mass of the frame structure in the initial cellular structure model, the mass of the resonator 022 in the initial cellular structure model, the total energy absorption of the frame structure in the initial cellular structure model, and the total energy absorption of the resonator 022 in the initial cellular structure model, the energy absorption value per unit mass of the initial cellular structure model, the energy absorption value per unit mass of the frame structure in the initial cellular structure model, and the energy absorption value per unit mass of the resonator 022 in the initial cellular structure model are calculated.
[0068] For example, the maximum displacement of the rigid plate model at the bottom can also be a simulation result of the energy absorption performance of the initial honeycomb structure model, which can be used to evaluate or compare the energy absorption performance of the initial honeycomb structure model. It can be understood that the smaller the maximum displacement of the rigid plate model at the bottom, the more energy the initial honeycomb structure model absorbs, that is, the better the energy absorption performance of the initial honeycomb structure model.
[0069] The frame structure in the aforementioned initial cellular structure model can refer, for example, to the aforementioned cellular frame 01 and support frame 021. The energy absorption value per unit mass corresponding to the aforementioned initial cellular structure model can be obtained, for example, by calculating "energy absorption value per unit mass corresponding to the frame structure in the initial cellular structure model = total energy absorption of the frame structure in the initial cellular structure model / mass of the frame structure in the initial cellular structure model".
[0070] Similarly, the energy absorption value per unit mass corresponding to resonator 022 in the above initial cellular structure model can be obtained, for example, by calculating "energy absorption value per unit mass corresponding to resonator 022 in the initial cellular structure model = total energy absorption of resonator 022 in the initial cellular structure model / mass of resonator 022 in the initial cellular structure model".
[0071] The energy absorption value per unit mass corresponding to the above-mentioned initial cellular structure model can be calculated as follows: "Energy absorption value per unit mass corresponding to the initial cellular structure model = (total energy absorption of the frame structure in the initial cellular structure model + total energy absorption of the resonator 022 in the initial cellular structure model) / total mass of the initial cellular structure model".
[0072] For example, assuming the total mass of the initial honeycomb structure model is 1 kg, where the mass of the frame structure in the initial honeycomb structure model is 0.6 kg and the mass of the resonator 022 in the initial honeycomb structure model is 0.4 kg, the energy absorption performance simulation obtained by the above dynamic mechanical performance simulation algorithm shows that the total energy absorption of the frame structure in the initial honeycomb structure model is 60 mJ, and the total energy absorption of the resonator 022 in the initial honeycomb structure model is 40 mJ. Therefore, the energy absorption value per unit mass of the frame structure in the initial honeycomb structure model = 60 mJ / 0.6 kg = 100 mJ. J / kg, the energy absorption per unit mass of resonator 022 in the above initial cellular structure model = 40mJ / 0.4kg = 100mJ / kg, the energy absorption per unit mass of the above initial cellular structure model = (40mJ+60mJ) / 1kg = 100mJ / kg. It should be noted that the above data are idealized data assumed for the convenience of calculation in the example. The actual data is not limited to the content in the above example, and the above example is not used to limit the ratio of the mass of the frame structure in the above initial cellular structure model to the mass of resonator 022 in the initial cellular structure model.
[0073] The energy absorption value per unit mass corresponding to the above-mentioned initial cellular structure model, the energy absorption value per unit mass corresponding to the frame structure in the above-mentioned initial cellular structure model, and the energy absorption value per unit mass corresponding to the resonator 022 in the above-mentioned initial cellular structure model can be used to represent the energy absorption efficiency of the above-mentioned initial cellular structure model and the frame structure and resonator 022 in the initial cellular structure model, and thus serve as one of the bases for adjusting the design parameters of the initial cellular structure model.
[0074] Figure 6 This is a schematic flowchart of a method for adjusting design parameters of a cellular structure according to another embodiment of this application. Optionally, as shown... Figure 6 As shown, based on the above embodiments, adjusting the design parameters of the initial honeycomb structure model according to the above energy absorption performance simulation results may include: S601. If the above energy absorption performance simulation results meet the first preset condition, adjust the design parameters of the above initial honeycomb structure model according to the lightweight design parameters to obtain the lightweight honeycomb structure model.
[0075] For example, the above-mentioned energy absorption performance simulation results satisfy the first preset condition. For example, it can refer to comparing the energy absorption performance simulation results corresponding to the above-mentioned initial honeycomb structure model with the energy absorption performance simulation results simulated under the same conditions as the original honeycomb structure model without the above-mentioned local resonance component 02, or directly comparing the energy absorption performance simulation results corresponding to the above-mentioned initial honeycomb structure model with the preset performance target to obtain the ideal energy absorption performance simulation results, that is, the energy absorption performance simulation results that satisfy the first preset condition.
[0076] It should be noted that the above content is only one possible example. The specific limitation of the first presupposition can be adjusted and determined according to the actual situation, and is not limited to the comparison method in the example above.
[0077] The aforementioned lightweight design parameters may refer, for example, to the design parameters corresponding to a cellular structure model that reduces the number of local resonant components 02 and deploys the local resonant components 02 only in the target cellular cell 011. It is understood that, in addition to adjusting the number of local resonant components 02, the aforementioned lightweight design parameters can also adjust, but are not limited to, the overall height, width, and thickness of the cellular structure; the side length and wall thickness of the cellular cell 011; the diameter of the resonator 022; the wall thickness and diameter of the resonator fixing ring 0212; the wall thickness and length of the connecting rod 0211; and the specific arrangement of the local resonant components 02, etc., which determine the data or information for the lightweight cellular structure model. Specific details are not limited here.
[0078] S602. Based on the above-mentioned preset energy absorption simulation algorithm and the above-mentioned lightweight honeycomb structure model, perform energy absorption performance simulation to obtain the energy absorption performance simulation results corresponding to the above-mentioned lightweight honeycomb structure model.
[0079] For example, based on the aforementioned preset energy absorption simulation algorithm and the aforementioned lightweight honeycomb structure model, energy absorption performance simulation is performed to obtain the energy absorption performance simulation results corresponding to the aforementioned lightweight honeycomb structure model. This can be achieved, for example, by methods including but not limited to... Figures 3-5 The energy absorption performance simulation results corresponding to the above-mentioned lightweight honeycomb structure model are obtained by using the energy absorption performance simulation methods corresponding to the static mechanical performance simulation algorithm and the energy absorption performance simulation algorithm corresponding to the dynamic mechanical performance simulation algorithm in the embodiment.
[0080] S603. If the simulation results of the energy absorption performance corresponding to the above lightweight honeycomb structure model meet the second preset condition, then the design parameters of the above lightweight honeycomb structure model shall be used as the design parameters of the above honeycomb structure.
[0081] For example, the energy absorption performance simulation results corresponding to the above-mentioned lightweight cellular structure model meet the second preset condition. For example, it can refer to comparing the energy absorption performance simulation results corresponding to the above-mentioned lightweight cellular structure model with the energy absorption performance simulation results of the above-mentioned cellular structure model that meets the first preset condition under the same conditions, or directly comparing the energy absorption performance simulation results corresponding to the above-mentioned lightweight cellular structure model with the preset performance target to obtain the ideal energy absorption performance simulation results, that is, the energy absorption performance simulation results that meet the second preset condition.
[0082] It should be noted that the above content is only one possible example. The specific limitation of the second presupposition can be adjusted and determined according to the actual situation, and is not limited to the comparison method in the example above.
[0083] Furthermore, in the above Figure 6 Based on the embodiments, the first preset condition may include: the static compression absorption energy value corresponding to the initial honeycomb structure model is greater than the preset static compression absorption energy threshold, and the maximum displacement of the rigid plate model at the bottom is less than the preset displacement threshold.
[0084] The aforementioned second preset condition may include: the energy absorption value per unit mass corresponding to the aforementioned lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the aforementioned initial honeycomb structure model, and the energy absorption value per unit mass corresponding to the frame structure in the aforementioned lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the frame structure in the aforementioned initial honeycomb structure model, and the energy absorption value per unit quantity corresponding to the resonator in the aforementioned lightweight honeycomb structure model is greater than the energy absorption value per unit quantity corresponding to the resonator in the aforementioned initial honeycomb structure model.
[0085] For example, the aforementioned preset static compression absorption energy threshold and preset displacement threshold may be, for example, the simulation results of the energy absorption performance of the honeycomb structure model without the aforementioned local resonance component 02 under the same conditions, or the aforementioned preset performance target.
[0086] The calculation methods for the energy absorption value per unit mass corresponding to the aforementioned lightweight honeycomb structure model, the energy absorption value per unit mass corresponding to the frame structure in the aforementioned lightweight honeycomb structure model, and the energy absorption value per unit quantity corresponding to the resonator in the aforementioned lightweight honeycomb structure model can refer to the calculation methods for the energy absorption value per unit mass corresponding to the aforementioned initial honeycomb structure model, the energy absorption value per unit mass corresponding to the frame structure in the aforementioned initial honeycomb structure model, and the energy absorption value per unit quantity corresponding to the resonator in the aforementioned initial honeycomb structure model. It should be noted that when the aforementioned lightweight honeycomb structure model is used for energy absorption performance simulation, the remaining conditions should be consistent with the conditions when the corresponding initial honeycomb structure model is used for energy absorption performance simulation. The initial honeycomb structure model can refer to, for example, the initial honeycomb structure model whose design parameters have not been adjusted, or the initial honeycomb structure model whose design parameters have been adjusted until the energy absorption performance simulation results meet the first preset conditions because the energy absorption performance simulation results did not meet the first preset conditions.
[0087] Figure 7 This is a schematic diagram of a design parameter debugging device for a cellular structure provided in an embodiment of this application. The design parameter debugging of the cellular structure can execute the aforementioned design parameter debugging method for cellular structures. This device can, for example, be integrated into a computer or other device with computing power. Figure 7 As shown, the device includes: Module 710 is used to build an initial cellular structure model based on the initial design parameters of the cellular structure.
[0088] The simulation module 720 is used to perform energy absorption performance simulation based on the preset energy absorption simulation algorithm and the above-mentioned initial cellular structure model, and to obtain the energy absorption performance simulation results corresponding to the above-mentioned initial cellular structure model.
[0089] The adjustment module 730 adjusts the design parameters of the initial honeycomb structure model based on the energy absorption performance simulation results corresponding to the initial honeycomb structure model, thereby obtaining the design parameters of any of the honeycomb structures in the aforementioned embodiments.
[0090] The method for adjusting the design parameters of a cellular structure provided in this application includes: building an initial cellular structure model based on the initial design parameters of the cellular structure; performing energy absorption performance simulation based on a preset energy absorption simulation algorithm and the initial cellular structure model to obtain the energy absorption performance simulation results corresponding to the initial cellular structure model; and adjusting the design parameters of the initial cellular structure model based on the energy absorption performance simulation results to obtain the design parameters of any of the aforementioned cellular structures. This method for adjusting the design parameters of a cellular structure builds an initial cellular structure model using the initial design parameters, enabling energy absorption performance simulation under various conditions using a preset energy absorption simulation algorithm and the initial cellular structure model. This allows for obtaining the energy absorption performance simulation results corresponding to the initial cellular structure model. These simulation results can be used to determine the energy absorption performance of the initial cellular structure model, assisting in adjusting the design parameters until the energy absorption performance simulation results of the cellular structure model corresponding to the adjusted design parameters reach an ideal state. This reduces the difficulty of adjusting the design parameters of the cellular structure and improves the efficiency and accuracy of the adjustment process.
[0091] Optionally, the simulation module 720 can be used to fix the initial honeycomb structure model between two parallel rigid plate models, fix the bottom rigid plate model, and apply a preset simulation velocity perpendicular to the bottom rigid plate model to the top rigid plate model to obtain the stress-strain relationship during the deformation process of the initial honeycomb structure model. The static compressive absorption energy value corresponding to the initial honeycomb structure model is then determined based on the stress-strain relationship.
[0092] Optionally, the adjustment module 730 can be specifically used to adjust the design parameters of the initial honeycomb structure model according to the lightweight design parameters if the energy absorption performance simulation results meet the first preset condition, thereby obtaining a lightweight honeycomb structure model. Based on the preset energy absorption simulation algorithm and the lightweight honeycomb structure model, energy absorption performance simulation is performed to obtain the energy absorption performance simulation results corresponding to the lightweight honeycomb structure model. If the energy absorption performance simulation results corresponding to the lightweight honeycomb structure model meet the second preset condition, the design parameters of the lightweight honeycomb structure model are used as the design parameters of the honeycomb structure.
[0093] Optionally, the first preset condition may include: the static compression absorption energy value corresponding to the initial honeycomb structure model is greater than a preset static compression absorption energy threshold, and the maximum displacement of the rigid plate model at the bottom is less than a preset displacement threshold. The second preset condition may include: the energy absorption value per unit mass corresponding to the lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the initial honeycomb structure model; the energy absorption value per unit mass corresponding to the frame structure in the lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the frame structure in the initial honeycomb structure model; and the energy absorption value per unit quantity corresponding to the resonators in the lightweight honeycomb structure model is greater than the energy absorption value per unit quantity corresponding to the resonators in the initial honeycomb structure model.
[0094] The above-described device is used to execute the method provided in the foregoing embodiments, and its implementation principle and technical effect are similar, so they will not be described again here.
[0095] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device can be, for example, a device with computing power such as a computer, as described above. Figure 8 As shown, the device 800 includes: The processor 810, storage medium 820, and bus 830 are connected via bus 830.
[0096] The storage medium 820 stores machine-readable instructions that can be executed by the processor 810. When the electronic device is running, the processor 810 executes the machine-readable instructions to perform the design parameter debugging method of the cellular structure.
[0097] It should be understood that, Figure 8 The structure shown is only a schematic diagram of an electronic device; the electronic device may also include components that are larger than those shown. Figure 8 The more or fewer components shown, or having the same Figure 8 The different configurations shown. Figure 8 The components shown can be implemented using hardware, software, or a combination thereof.
[0098] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the cellular structure design parameter debugging method described in the above method embodiments.
[0099] Computer-readable storage media can be electronic storage devices such as flash memory, EEPROM (Electrically Erasable Programmable Read-Only Memory), EPROM, hard disk, or ROM. Optionally, computer-readable storage media includes non-transitory computer-readable storage medium. The computer-readable storage medium has storage space for program code that performs any of the method steps described above. This program code can be read from or written to one or more computer program products. The program code can be compressed, for example, in a suitable form.
[0100] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.
[0101] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.
[0102] If a function is implemented as a software module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0103] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.
Claims
1. A honeycomb structure, characterized in that, include: A cellular frame and multiple local resonant components, wherein the cellular frame includes: multiple cellular cells, and each local resonant component is disposed in a corresponding cellular cell; each local resonant component includes: a support frame and a resonator, the support frame including a connecting rod and a resonator fixing ring; The connecting rod is fixedly connected to the cell unit to which it is located, and the resonator is fixedly disposed in the corresponding resonator fixing ring.
2. The honeycomb structure according to claim 1, characterized in that, The localized resonant component has a chiral structure.
3. The honeycomb structure according to claim 1, characterized in that, The number of the local resonant components is the same as the number of the cellular cells, and one local resonant component is provided in each cellular cell.
4. The honeycomb structure according to claim 1, characterized in that, The number of local resonant components is less than the number of cellular cells. The local resonant components are deployed in multiple target cellular cells, and the multiple target cellular cells are arranged in a lightweight design within the cellular frame.
5. The honeycomb structure according to claim 4, characterized in that, Multiple target cellular cells are arranged radially in the cellular frame with the midpoint of the cellular frame as the center.
6. The honeycomb structure according to claim 1, characterized in that, The honeycomb frame and the support frame are both made of thermoplastic polyurethane, and the resonator is made of stainless steel.
7. A method for adjusting design parameters of a honeycomb structure, characterized in that, include: An initial cellular structure model is built based on the initial design parameters of the cellular structure. Based on the preset energy absorption simulation algorithm and the initial honeycomb structure model, the energy absorption performance is simulated, and the energy absorption performance simulation results corresponding to the initial honeycomb structure model are obtained. Based on the simulation results of the energy absorption performance corresponding to the initial cellular structure model, the design parameters of the initial cellular structure model are adjusted to obtain the design parameters of the cellular structure according to any one of claims 1-6.
8. The method according to claim 7, characterized in that, The step of performing energy absorption performance simulation based on a preset energy absorption simulation algorithm and the initial cellular structure model, and obtaining the energy absorption performance simulation results corresponding to the initial cellular structure model, includes: The initial honeycomb structure model is fixed between two parallel rigid plate models. The bottom rigid plate model is fixedly constrained, and a preset simulation velocity perpendicular to the bottom rigid plate model is applied to the top rigid plate model to obtain the stress-strain relationship during the deformation process of the initial honeycomb structure model. The static compression absorption energy value corresponding to the initial cellular structure model is determined based on the stress-strain relationship.
9. The method according to claim 8, characterized in that, The step of adjusting the design parameters of the initial honeycomb structure model based on the energy absorption performance simulation results includes: If the energy absorption performance simulation results meet the first preset condition, adjust the design parameters of the initial honeycomb structure model according to the lightweight design parameters to obtain the lightweight honeycomb structure model; Based on the preset energy absorption simulation algorithm and the lightweight honeycomb structure model, energy absorption performance simulation is performed to obtain the energy absorption performance simulation results corresponding to the lightweight honeycomb structure model. If the simulation results of the energy absorption performance corresponding to the lightweight honeycomb structure model meet the second preset condition, then the design parameters of the lightweight honeycomb structure model shall be used as the design parameters of the honeycomb structure.
10. The method according to claim 9, characterized in that, The first preset condition includes: the static compression absorption energy value corresponding to the initial honeycomb structure model is greater than the preset static compression absorption energy threshold, and the maximum displacement of the rigid plate model at the bottom is less than the preset displacement threshold. The second preset condition includes: the energy absorption value per unit mass corresponding to the lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the initial honeycomb structure model, and the energy absorption value per unit mass corresponding to the frame structure in the lightweight honeycomb structure model is greater than the energy absorption value per unit mass corresponding to the frame structure in the initial honeycomb structure model, and the energy absorption value per unit quantity corresponding to the resonator in the lightweight honeycomb structure model is greater than the energy absorption value per unit quantity corresponding to the resonator in the initial honeycomb structure model.