Design method and device of honeycomb sandwich vibration isolation base

Abstract

The present invention provides a honeycomb sandwich vibration isolation base design method and device, which relate to the field of base design. The method and device include obtaining multiple groups of base design parameters based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold and a preset rib thickness threshold, wherein each group of base design parameters includes honeycomb core width information, honeycomb core spacing information, honeycomb core thickness information and rib thickness information; inputting each group of base design parameters into preset analysis software, and outputting acceleration level total drop information and base weight information corresponding to each group of base design parameters; determining a comprehensive performance evaluation value corresponding to each group of base design parameters based on the acceleration level total drop information and base weight information corresponding to each group of base design parameters, and determining a target base design parameter in each group of base design parameters by sorting the comprehensive performance evaluation values ​​according to their sizes.

Description

Technical Field

[0001] The present invention relates to the field of base design, and in particular to a design method and device for a honeycomb sandwich vibration isolation base. Background Art

[0002] With the development of larger and faster ships, the vibration and noise intensity of ship machinery and equipment has greatly increased. Therefore, the design of vibration isolation bases for ship machinery and equipment requires two considerations: on the one hand, making the vibration isolation base as lightweight as possible; on the other hand, improving the vibration isolation performance of the vibration isolation base. Currently, the control measures for ship vibration and noise mainly focus on isolating the vibration of mechanical equipment. For example, through structural optimization design, the layout of vibration isolation systems, vibration-damping square steel and damping materials, these methods only reduce vibration and underwater radiated noise to a certain extent. The functions they achieve are limited and can only meet the single demand of ship vibration isolation, but are unable to meet the complex demands brought about by the current development of high-speed and quiet ships.

[0003] Therefore, how to solve the defect of existing technology that it is difficult to balance lightweight and vibration isolation performance is an urgent problem to be solved in the industry. Summary of the Invention

[0004] The present invention provides a honeycomb sandwich vibration isolation base design method and device, which are used to solve the defect of the existing technology that it is difficult to balance lightweight and vibration isolation performance, meet the complex needs of actual development, and achieve the dual goals of lightweighting and improving vibration isolation capability.

[0005] The present invention provides a design method for a honeycomb sandwich vibration isolation base, wherein the honeycomb sandwich vibration isolation base comprises: a honeycomb core, an upper rib plate and a lower rib plate, wherein the honeycomb core is arranged between the upper rib plate and the lower rib plate, and the method comprises:

[0006] Based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, a plurality of sets of base design parameters are obtained, each set of base design parameters including a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information, and a rib thickness information;

[0007] Inputting each set of base design parameters into a preset analysis software, and outputting the total drop information of the acceleration level and the base weight information corresponding to each set of base design parameters;

[0008] Based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, the comprehensive performance evaluation value corresponding to each group of base design parameters is determined, and the target base design parameters in each group of base design parameters are determined according to the size sorting of each comprehensive performance evaluation value.

[0009] According to the honeycomb sandwich vibration isolation base design method, based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, multiple sets of base design parameters are obtained, including:

[0010] The preset honeycomb core width threshold, the preset honeycomb core spacing threshold, the preset honeycomb core thickness threshold, and the preset rib thickness threshold are divided into N segments in a step-by-step manner to obtain N+1 preset honeycomb core width values, N+1 preset honeycomb core spacing values, N+1 preset honeycomb core thickness values, and N+1 preset rib thickness values;

[0011] Based on any combination of the N+1 preset honeycomb core width values, the N+1 preset honeycomb core spacing values, the N+1 preset honeycomb core thickness values ​​and the N+1 preset rib thickness values, (N+1) is obtained. 4 Set base design parameters.

[0012] According to the honeycomb sandwich vibration isolation base design method, each group of base design parameters is input into the preset analysis software, and the total drop information of the acceleration level and the base weight information corresponding to each group of base design parameters are output, including:

[0013] The base design parameters of each group are input into COMSOL software to automatically calculate the total drop information of the acceleration level and the base weight information corresponding to the base design parameters;

[0014] The total drop information of the acceleration level and the base weight information are transmitted to MATLAB software for storage.

[0015] According to the honeycomb sandwich vibration isolation base design method, based on the total drop information of the acceleration level and the base weight information corresponding to each set of the base design parameters, the comprehensive performance evaluation value corresponding to each set of the base design parameters is determined, including:

[0016] Normalizing the total acceleration level drop information and the base weight information corresponding to each group of base design parameters to obtain normalized total acceleration level drop information and normalized base weight information;

[0017] Obtaining the comprehensive performance evaluation value according to the product of the normalized base weight information and the first preset coefficient, and the product of the normalized total drop information of the acceleration level and the second preset coefficient;

[0018] The first preset coefficient is associated with the lightweight level of the honeycomb sandwich vibration isolation base, and the second preset coefficient is associated with the vibration isolation capacity of the honeycomb sandwich vibration isolation base.

[0019] According to the honeycomb sandwich vibration isolation base design method, the normalized total acceleration level drop information is specifically:

[0020]

[0021] Wherein, m=1, 2...N+1) 4 , min(ΔB′) and max(ΔB′) are (N+1) 4 The minimum and maximum values ​​of the total difference information ΔB′ of the acceleration level.

[0022] According to the honeycomb sandwich vibration isolation base design method, the normalized base weight information is as follows:

[0023]

[0024] Where m = 1, 2, ... (N + 1) 4 , min(G) and max(G) are (N+1) 4 The minimum and maximum values ​​of the base weight information G.

[0025] The present invention also provides a honeycomb sandwich vibration isolation base design device, the honeycomb sandwich vibration isolation base includes: a honeycomb core, an upper rib plate and a lower rib plate, the honeycomb core is arranged between the upper rib plate and the lower rib plate, the device includes:

[0026] an acquisition module, which acquires multiple sets of base design parameters based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, wherein each set of base design parameters includes a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information, and a rib thickness information;

[0027] An output module inputs each set of base design parameters into a preset analysis software, and outputs total drop information of acceleration level and base weight information corresponding to each set of base design parameters;

[0028] A determination module determines the comprehensive performance evaluation value corresponding to each group of base design parameters based on the total drop information of the acceleration vibration level and the base weight information corresponding to each group of base design parameters, and determines the target base design parameters in each group of base design parameters according to the size sorting of each comprehensive performance evaluation value.

[0029] The present invention also provides an electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method for designing a honeycomb sandwich vibration isolation base as described above is implemented.

[0030] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method for designing a honeycomb sandwich vibration isolation base as described in any one of the above is implemented.

[0031] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the computer program implements any of the above-mentioned methods for designing a honeycomb sandwich vibration isolation base.

[0032] The honeycomb sandwich vibration isolation base design method and device provided by the present invention input multiple groups of acquired base design parameters into preset analysis software, and the preset analysis software outputs the total drop information of acceleration level and the base weight information corresponding to each group of base design parameters after analysis, wherein the larger the total drop information of acceleration level, the better the vibration isolation capability, and the smaller the base weight information, the lighter the base; and the comprehensive performance evaluation value determined based on the total drop information of acceleration level and the base weight information can be used as an indicator for comprehensively evaluating the vibration isolation capability and lightweight level of the honeycomb sandwich vibration isolation base; according to the size ranking of each group of comprehensive performance evaluation values, the optimal comprehensive performance evaluation value is selected in a certain manner, and the base design parameter corresponding to the value is the target base design parameter. The honeycomb sandwich vibration isolation base designed with the target base design parameter can meet the actual demand for vibration isolation capability and the demand for lightweight level, achieve the dual goals of lightweighting and improving vibration isolation capability, and effectively balance the demand for lightweighting and improving vibration isolation capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the rib plate structure provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of the honeycomb core structure provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of the structure of a honeycomb sandwich vibration isolation base provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of the cross-sectional structure of a honeycomb core provided in an embodiment of the present application;

[0038] Figure 5 This is a flow chart of the design method of the honeycomb sandwich vibration isolation base described in the embodiment of this application;

[0039] Figure 6 A schematic structural diagram of a honeycomb sandwich vibration isolation base design device provided in an embodiment of the present application;

[0040] Figure 7 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0042] Figure 1 The schematic diagram of the rib structure provided in the embodiment of this application is as follows: Figure 1 As shown, including: stiffener.

[0043] In an embodiment of the present application, the rib plate can be an upper rib plate or a lower rib plate. The rib plate is a thin panel with high strength. The thin panel can be a high-strength composite material, such as a high-strength carbon fiber composite material, a high-strength resin composite material, a high-strength nano-composite material, etc.

[0044] Figure 2 The schematic diagram of the honeycomb core structure provided in the embodiment of the present application is as follows: Figure 2 As shown, comprising: a honeycomb core.

[0045] In the embodiment of the present application, the honeycomb core is composed of many honeycomb parts with a hollow center. It is a thick and extremely light honeycomb core and can be a composite material such as fiberglass, rubber, carbon fiber, etc.

[0046] Figure 3 The schematic diagram of the honeycomb sandwich vibration isolation base structure provided in the embodiment of the present application is as follows: Figure 3 As shown, the honeycomb sandwich vibration isolation base includes: a honeycomb core 310, an upper rib plate 320 and a lower rib plate 330, wherein the honeycomb core 310 is arranged between the upper rib plate 320 and the lower rib plate 330; wherein the parameters involved are the honeycomb core thickness L and the rib plate thickness P, the honeycomb core thickness L is the thickness of the honeycomb core 310, and the rib plate thickness P is the thickness of the upper rib plate 320 and the lower rib plate 330.

[0047] In the embodiments of this application, the honeycomb core is a thick, lightweight honeycomb core made of a composite material such as fiberglass, rubber, or carbon fiber. The honeycomb core is bonded to the upper and lower ribs after processing, with the honeycomb core positioned between the upper and lower ribs. To further increase structural impedance, damping grease is applied to the interstices of the honeycomb core, effectively increasing the structural impedance and dissipating some of the energy generated by structural vibration during deformation, thereby suppressing structural vibration.

[0048] Specifically, the upper rib plate is a thin panel with high strength, and the thin panel can be a high-strength composite material, such as a high-strength carbon fiber composite material, a high-strength resin composite material, a high-strength nano-composite material, and the like.

[0049] Specifically, the lower rib plate is a thin panel with high strength, and the thin panel can be a high-strength composite material, such as a high-strength carbon fiber composite material, a high-strength resin composite material, a high-strength nano-composite material, and the like.

[0050] In the embodiment of the present application, the thickness L of the honeycomb core may be different from or the same as the thickness of the upper rib plate and the thickness of the lower rib plate.

[0051] In the embodiment of the present application, the rib thickness P refers to the thickness of the upper rib and the lower rib.

[0052] Figure 4 The schematic diagram of the cross-sectional structure of the honeycomb core provided in the embodiment of the present application is as follows: Figure 4 As shown, it includes: multiple honeycomb cross-sectional structures, wherein the parameters involved are honeycomb core width e and honeycomb core spacing a.

[0053] In the embodiment of the present application, the honeycomb core is a regular hexagon, and the side length of the regular hexagon is the honeycomb core width e.

[0054] In the embodiment of the present application, the honeycomb core spacing a is the distance between the honeycomb cores, and the distance between each honeycomb core is the same.

[0055] Figure 5 This is a flow chart of the design method of the honeycomb sandwich vibration isolation base described in the embodiment of this application, as shown in FIG. Figure 5 Shown, including:

[0056] Step 510: Based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, a plurality of sets of base design parameters are obtained, each set of base design parameters including honeycomb core width information, honeycomb core spacing information, honeycomb core thickness information, and rib thickness information.

[0057] In the embodiment of the present application, four design parameters are taken as the design parameters of the base, namely: honeycomb core width e, honeycomb core spacing a, honeycomb core thickness L and rib thickness P.

[0058] Specifically, the honeycomb core is a regular hexagon, and the side length of the regular hexagon is the honeycomb core width e.

[0059] Specifically, the honeycomb core spacing a is the distance between honeycomb cores, and the distance between each honeycomb core is the same.

[0060] Specifically, the honeycomb core thickness L is the thickness of the honeycomb core.

[0061] Specifically, the rib thickness P refers to the thickness of the upper rib and the lower rib.

[0062] In the embodiment of the present application, due to the characteristics of the mechanical equipment supported by the honeycomb sandwich vibration isolation base and the limitations of the cabin space size, the above four design parameters are all set with adjustable threshold ranges.

[0063] Specifically, the threshold range corresponding to the honeycomb core width e is the preset honeycomb core width threshold [e1, e2], the threshold range corresponding to the honeycomb core spacing a is the preset honeycomb core spacing threshold [a1, a2], the threshold range corresponding to the honeycomb core thickness L is the preset honeycomb core thickness threshold [L1, L2], and the threshold range corresponding to the rib thickness P is the preset rib thickness threshold [P1, P2].

[0064] Among them, the preset rib thickness threshold [P1, P2] corresponds to that the thickness of the upper rib and the thickness of the lower rib may be the same or different. When the thickness of the upper rib is different from that of the lower rib, the thickness of the rib with the smallest thickness among the two ribs is taken as the lower limit of the threshold range, and the thickness of the rib with the largest thickness is taken as the upper limit of the threshold range.

[0065] In an embodiment of the present application, the threshold ranges of the above four design parameters are divided into N segments to obtain multiple groups of base design parameters, each group of base design parameters includes a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information and a rib plate thickness information, where N is a positive integer greater than 1.

[0066] Specifically, the values ​​of each group of base design parameters are different from each other. In the same group of base design parameters, the honeycomb core width information refers to the preset honeycomb core width value in the group of base design parameters; the honeycomb core spacing information refers to the preset honeycomb core spacing value in the group of base design parameters; the honeycomb core thickness information refers to the preset honeycomb core thickness value in the group of base design parameters; and the rib thickness information refers to the preset rib thickness value in the group of base design parameters.

[0067] Step 520: Input each set of base design parameters into a preset analysis software, and output acceleration level total drop information and base weight information corresponding to each set of base design parameters;

[0068] In an embodiment of the present application, each group of base design parameters is used as input, and the preset analysis software analyzes and processes the input each group of base design parameters to obtain and output the total drop information of acceleration vibration level and base weight information corresponding to each group of base design parameters.

[0069] Specifically, the preset analysis software refers to pre-set analysis software, which can be simulation software, data analysis software, etc.

[0070] Specifically, the total drop information of the acceleration level represents the vibration isolation capability of the honeycomb sandwich vibration isolation base, and each set of base design parameters corresponds to a total drop information of the acceleration level.

[0071] Specifically, the base weight information represents the lightweight level of the honeycomb sandwich vibration isolation base, that is, the sum of the weights of the honeycomb core, the upper rib plate, and the lower rib plate. Each set of base design parameters corresponds to a base weight information.

[0072] Step 530: Determine the comprehensive performance evaluation value corresponding to each group of base design parameters based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, and determine the target base design parameters in each group of base design parameters according to the size sorting of each comprehensive performance evaluation value.

[0073] In an embodiment of the present application, the total acceleration level drop information and base weight information of each group are normalized respectively, and the normalized total acceleration level drop information and the normalized base weight information are used to collaboratively characterize the comprehensive performance of the honeycomb sandwich vibration isolation base.

[0074] Specifically, the comprehensive performance is expressed by a comprehensive performance evaluation value, which is obtained by the normalized total drop information of the acceleration vibration level and the normalized base weight information according to their respective proportions. Each set of base design parameters corresponds to a comprehensive performance evaluation value.

[0075] Furthermore, the comprehensive performance evaluation value is not fixed and can be flexibly adjusted according to the specific requirements for lightweight level and vibration isolation capability design. For example, if the lightweight level requirement is high in a certain usage scenario, the proportion of the normalized base weight information is increased, and the proportion of the normalized acceleration level total drop information is correspondingly reduced; if the vibration isolation capability requirement is high in another usage scenario, the proportion of the normalized acceleration level total drop information is increased, and the proportion of the normalized base weight information is correspondingly reduced.

[0076] Specifically, the larger the comprehensive performance evaluation value, the better the corresponding base design parameters. The base design parameters corresponding to the maximum comprehensive performance evaluation value are the optimal base design parameters, that is, this set of base design parameters can achieve the optimal comprehensive performance design of the honeycomb sandwich vibration isolation base in terms of lightweight level and vibration isolation capability.

[0077] Among them, the base design parameters corresponding to the maximum comprehensive performance evaluation value are the target base design parameters.

[0078] In an embodiment of the present application, the obtained multiple groups of base design parameters are input into a preset analysis software, and the preset analysis software outputs the total acceleration level drop information and base weight information corresponding to each group of base design parameters after analysis, wherein the larger the total acceleration level drop information, the better the vibration isolation capability, and the smaller the base weight information, the lighter it is; and the comprehensive performance evaluation value determined based on the total acceleration level drop information and the base weight information can be used as an indicator for comprehensively evaluating the vibration isolation capability and lightweight level of the honeycomb sandwich vibration isolation base; according to the size sorting of each group of comprehensive performance evaluation values, the optimal comprehensive performance evaluation value is selected in a certain way, and the base design parameter corresponding to the value is the target base design parameter. The honeycomb sandwich vibration isolation base designed with the target base design parameter can meet the actual demand for vibration isolation capability and the demand for lightweight level, achieve the dual goals of lightweighting and improving vibration isolation capability, and effectively balance the needs of lightweighting and improving vibration isolation capability.

[0079] Optionally, according to the honeycomb sandwich vibration isolation base design method, based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, multiple sets of base design parameters are obtained, including:

[0080] The preset honeycomb core width threshold, the preset honeycomb core spacing threshold, the preset honeycomb core thickness threshold, and the preset rib thickness threshold are divided into N segments in a step-by-step manner to obtain N+1 preset honeycomb core width values, N+1 preset honeycomb core spacing values, N+1 preset honeycomb core thickness values, and N+1 preset rib thickness values;

[0081] Based on any combination of the N+1 preset honeycomb core width values, the N+1 preset honeycomb core spacing values, the N+1 preset honeycomb core thickness values ​​and the N+1 preset rib thickness values, (N+1) is obtained. 4 Set base design parameters.

[0082] In the embodiment of the present application, due to the characteristics of the mechanical equipment supported by the honeycomb sandwich vibration isolation base and the limitations of the cabin space size, the design parameters of the base are all set with an adjustable threshold range.

[0083] Specifically, the design parameters of the base include: honeycomb core width e, honeycomb core spacing a, honeycomb core thickness L and rib thickness P.

[0084] Among them, the threshold range corresponding to the honeycomb core width is the preset honeycomb core width threshold [e1, e2], the threshold range corresponding to the honeycomb core spacing is the preset honeycomb core spacing threshold [a1, a2], the threshold range corresponding to the honeycomb core thickness is the preset honeycomb core thickness threshold [L1, L2], and the threshold range corresponding to the rib thickness is the preset rib thickness threshold [P1, P2].

[0085] In an embodiment of the present application, the preset honeycomb core width threshold [e1, e2], the preset honeycomb core spacing threshold [a1, a2], the preset honeycomb core thickness threshold [L1, L2] and the preset rib thickness threshold [P1, P2] are divided into N segments in a step-by-step manner, where N is a positive integer greater than 1.

[0086] Specifically, after dividing the above four threshold ranges into N segments in a step-by-step manner, we can obtain:

[0087] N+1 preset honeycomb core width values, including e1,

[0088] N+1 preset honeycomb core spacing values, including a1,

[0089] N+1 preset honeycomb core thickness values, including L1,

[0090] N+1 preset rib thickness values, including P1,

[0091] Where n corresponds to the value of N.

[0092] Specifically, any combination of N+1 preset honeycomb core width values, N+1 preset honeycomb core spacing values, N+1 preset honeycomb core thickness values, and N+1 preset rib thickness values ​​is used to obtain (N+1) 4 Set base design parameters.

[0093] In the embodiment of the present application, the preset honeycomb core width threshold, the preset honeycomb core spacing threshold, the preset honeycomb core thickness threshold, and the preset rib thickness threshold are divided into N segments in a step-by-step manner, and the values ​​of the segmented parameters are arbitrarily combined to obtain (N+1) 4 The group base design parameters effectively provide sufficient data support for subsequent further data processing, making the final results more scientific and credible.

[0094] Optionally, according to the honeycomb sandwich vibration isolation base design method, each group of base design parameters is input into a preset analysis software, and the total drop information of the acceleration level and the base weight information corresponding to each group of base design parameters is output, including:

[0095] The base design parameters of each group are input into COMSOL software to automatically calculate the total drop information of the acceleration level and the base weight information corresponding to the base design parameters;

[0096] The acceleration level total drop information and the base weight information are transmitted to MATLAB software for storage.

[0097] In the embodiment of the present application, (N+1) 4 The design parameters of each group of bases are stored in MATLAB software, and the combination of each group of base design parameters is transferred to COMSOL software one by one through a software interface based on Object Linking and Embedding for Process Control Unified Architecture (OPC UA). For each group of base design parameters, the basic conditions of the honeycomb sandwich vibration isolation base and the supported mechanical equipment are input. COMSOL software can automatically calculate the total acceleration level drop information ΔB′ and base weight information G corresponding to each group of base design parameters, and transfer them back to MATLAB software for storage through the software interface.

[0098] Among them, (N+1) 4 Group base design parameters, corresponding to (N+1) 4 The total drop information of acceleration level ΔB′, and (N+1) 4 The base weight information G is as small as possible for the honeycomb sandwich vibration isolation base, and the larger the total drop information ΔB′ of the acceleration level is, the better.

[0099] Specifically, MATLAB software is a mathematical software that can store each set of base design parameters, transfer each set of base design parameters to COMSOL software through a software interface, and store the total drop information ΔB′ of the acceleration vibration level and the base weight information G corresponding to each set of base design parameters calculated by COMSOL software.

[0100] Specifically, the OPC UA-based software interface provides a communication connection between MATLAB and COMSOL. The OPC UA protocol is a specification and architecture for industrial communication data exchange. It provides a unified standard interface for different applications, devices, drivers, and software, independent of hardware manufacturers and software developers. It can address cross-platform, real-time, security, and integration issues in communication systems.

[0101] Specifically, COMSOL software is a simulation software. After receiving the design parameters of each group of bases and the basic conditions of the honeycomb sandwich vibration isolation base and the supported mechanical equipment, it can simulate the honeycomb sandwich vibration isolation base corresponding to each group of base design parameters, automatically calculate the total drop information ΔB′ of the acceleration level and the base weight information G corresponding to each group of base design parameters, and transmit them to the MATLAB software through the software interface for storage.

[0102] Specifically, the basic conditions of the honeycomb sandwich vibration isolation base and the mechanical equipment it supports, including, for example, the material properties of the honeycomb sandwich vibration isolation base, the vibration frequency range of the mechanical equipment it supports, etc., need to be analyzed in advance.

[0103] Furthermore, the characteristics of the mechanical equipment supported by the honeycomb sandwich vibration isolation base are analyzed in advance, and its vibration frequency range is determined to be [f′ min 、f′ max ].

[0104] Specifically, the vibration frequency range of the mechanical equipment [f′ min 、f′ max ], which can be obtained through analysis by instruments such as vibration analyzers, sensors, and flash meters. It is a commonly used vibration frequency test method and will not be described in detail.

[0105] In the embodiment of the present application, the center point of the upper rib plate (support surface) of the honeycomb sandwich vibration isolation base is A′, and the center point of the lower rib plate (support surface) is B′.

[0106] Specifically, the calculation formula for the total acceleration level difference information ΔB′ is:

[0107]

[0108] Among them, α A′ (f), α B′ (f) are the acceleration vibration responses of the center point A′ of the upper rib plate (support surface) and the center point B′ of the lower rib plate (support surface) of the honeycomb sandwich vibration isolation base at a certain frequency f, f′ min 、f′ max It is the minimum and maximum value of the vibration frequency range of the mechanical equipment supported by the honeycomb sandwich vibration isolation base.

[0109] In the embodiment of the present application, the total drop information of the acceleration level and the base weight information corresponding to each group of base design parameters are automatically calculated by COMSOL software, and the total drop information of the acceleration level and the base weight information are transmitted to MATLAB software for storage, which effectively ensures the subsequent evaluation of the comprehensive performance of the honeycomb sandwich vibration isolation base and improves the evaluation efficiency.

[0110] Optionally, according to the honeycomb sandwich vibration isolation base design method, based on the total drop information of the acceleration level and the base weight information corresponding to each set of the base design parameters, the comprehensive performance evaluation value corresponding to each set of the base design parameters is determined, including:

[0111] Normalizing the total acceleration level drop information and the base weight information corresponding to each group of base design parameters to obtain normalized total acceleration level drop information and normalized base weight information;

[0112] Obtaining the comprehensive performance evaluation value according to the product of the normalized base weight information and the first preset coefficient, and the product of the normalized total drop information of the acceleration level and the second preset coefficient;

[0113] The first preset coefficient is associated with the lightweight level of the honeycomb sandwich vibration isolation base, and the second preset coefficient is associated with the vibration isolation capacity of the honeycomb sandwich vibration isolation base.

[0114] In the embodiment of the present application, the acceleration level total drop information and the base weight information corresponding to each group of base design parameters are normalized to obtain the normalized acceleration level total drop information. And the normalized base weight information

[0115] In the embodiment of the present application, the first preset coefficient α is associated with the lightweight level of the honeycomb sandwich vibration isolation base, and corresponds to the normalized base weight information The product of the first preset coefficient α The product It is an indicator for evaluating the lightweight level of honeycomb sandwich vibration isolation base. Where m = 1, 2... (N+1) 4 .

[0116] In the embodiment of the present application, the second preset coefficient β is associated with the vibration isolation capability of the honeycomb sandwich vibration isolation base, and corresponds to the normalized total drop information of the acceleration level. The product of the second preset coefficient β The product It represents the index for evaluating the vibration isolation capability of honeycomb sandwich vibration isolation base. Where m=1, 2...(N+1)4 .

[0117] Specifically, MATLAB software is used for (N+1) 4 The design parameters of the group base are calculated separately (N+1) 4 The corresponding comprehensive performance evaluation value μ.

[0118] Specifically, by multiplying Sum and product The comprehensive performance evaluation value μ is obtained, specifically:

[0119]

[0120] Where m = 1, 2, ... (N + 1) 4 ; α+β=1, and α, β≥0.

[0121] Furthermore, the first preset coefficient α and the second preset coefficient β can be flexibly adjusted based on the specific requirements of the honeycomb sandwich vibration isolation base for lightweighting and vibration isolation capability. For example, if a certain usage scenario requires a higher lightweighting level, the first preset coefficient α can be increased, and the second preset coefficient β can be correspondingly reduced. If another usage scenario requires a higher vibration isolation capability, the second preset coefficient β can be increased, and the first preset coefficient α can be correspondingly reduced.

[0122] Specifically, the maximum value of the comprehensive performance evaluation value μ is taken, and the corresponding base design parameters are the optimal base design parameters, that is, the optimal design that can achieve the comprehensive performance of the lightweight level and vibration isolation capability of the honeycomb sandwich vibration isolation base.

[0123] In the embodiment of the present application, the lightweight level of the honeycomb sandwich vibration isolation base can be evaluated by multiplying the normalized base weight information by the first preset coefficient; and the vibration isolation capability of the honeycomb sandwich vibration isolation base can be evaluated by multiplying the normalized total drop information of the acceleration level by the second preset coefficient. The comprehensive performance evaluation value obtained according to the above two products can effectively and comprehensively evaluate the lightweight level and vibration isolation capability of the honeycomb sandwich vibration isolation base, ensuring that effective vibration isolation can be achieved while achieving lightweight, and due to the adjustability of the first preset coefficient and the second preset coefficient, the flexibility of designing the honeycomb sandwich vibration isolation base is greatly improved.

[0124] Optionally, according to the honeycomb sandwich vibration isolation base design method, the normalized total acceleration level drop information is specifically:

[0125]

[0126] Where m = 1, 2, ... (N + 1) 4, min(ΔB′) and max(ΔB′) are (N+1) 4 The minimum and maximum values ​​of the total difference information ΔB′ of the acceleration level.

[0127] In the embodiment of the present application, for (N+1) 4 Group base design parameters, corresponding to (N+1) 4 The total acceleration level drop information ΔB′ is obtained. For honeycomb sandwich vibration isolation bases, the larger the total acceleration level drop ΔB′, the better. Therefore, during the normalization process, the total acceleration level drop information ΔB′(m) corresponding to each set of base design parameters is subtracted from the minimum value min(ΔB′) of the total acceleration level drop information corresponding to each set of base design parameters, that is, ΔB′(m)-min(ΔB′).

[0128] Specifically, the normalized total acceleration level drop information Specifically:

[0129]

[0130] Where m = 1, 2, ... (N + 1) 4 , min(ΔB′) and max(ΔB′) are (N+1) 4 The minimum and maximum values ​​of the total difference information ΔB′ of the acceleration level.

[0131] In the embodiment of the present application, normalizing the total drop information of the acceleration level helps to subsequently evaluate the vibration isolation capability of the honeycomb sandwich vibration isolation base.

[0132] Optionally, according to the honeycomb sandwich vibration isolation base design method, the normalized base weight information is specifically:

[0133]

[0134] Where m = 1, 2, ... (N + 1) 4 , min(G) and max(G) are (N+1) 4 The minimum and maximum values ​​of the base weight information G.

[0135] In the embodiment of the present application, for (N+1) 4 Group base design parameters, corresponding to (N+1) 4 The base weight information G is calculated. For honeycomb sandwich vibration isolation bases, the smaller the base weight information G, the better. Therefore, during normalization, the maximum value of the base weight information (max(G)) corresponding to each set of base design parameters is subtracted from the base weight information (G(m)) corresponding to each set of base design parameters, i.e., max(G) minus G(m).

[0136] Specifically, the normalized base weight information is:

[0137]

[0138] Where m = 1, 2, ... (N + 1) 4 , min(G) and max(G) are (N+1) 4 The minimum and maximum values ​​of the base weight information G.

[0139] In the embodiment of the present application, normalizing the base weight information helps to subsequently evaluate the lightweight level of the honeycomb sandwich vibration isolation base.

[0140] The honeycomb sandwich vibration isolation base design device provided by the present invention is described below. The honeycomb sandwich vibration isolation base design device described below and the honeycomb sandwich vibration isolation base design method described above can be referenced to each other.

[0141] Figure 6 The schematic diagram of the structure of the honeycomb sandwich vibration isolation base design device provided in the embodiment of the present application is as follows: Figure 6 Shown, including:

[0142] An acquisition module 610 acquires multiple sets of base design parameters based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, each set of base design parameters including honeycomb core width information, honeycomb core spacing information, honeycomb core thickness information, and rib thickness information;

[0143] Output module 620 inputs each set of base design parameters into a preset analysis software, and outputs acceleration level total drop information and base weight information corresponding to each set of base design parameters;

[0144] Determination module 630 determines the comprehensive performance evaluation value corresponding to each group of base design parameters based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, and determines the target base design parameters in each group of base design parameters according to the size sorting of each comprehensive performance evaluation value.

[0145] In an embodiment of the present application, the obtained multiple groups of base design parameters are input into a preset analysis software, and the preset analysis software outputs the total acceleration level drop information and base weight information corresponding to each group of base design parameters after analysis, wherein the larger the total acceleration level drop information, the better the vibration isolation capability, and the smaller the base weight information, the lighter it is; and the comprehensive performance evaluation value determined based on the total acceleration level drop information and the base weight information can be used as an indicator for comprehensively evaluating the vibration isolation capability and lightweight level of the honeycomb sandwich vibration isolation base; according to the size sorting of each group of comprehensive performance evaluation values, the optimal comprehensive performance evaluation value is selected in a certain way, and the base design parameter corresponding to the value is the target base design parameter. The honeycomb sandwich vibration isolation base designed with the target base design parameter can meet the actual demand for vibration isolation capability and the demand for lightweight level, achieve the dual goals of lightweighting and improving vibration isolation capability, and effectively balance the needs of lightweighting and improving vibration isolation capability.

[0146] Figure 7 Schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 7 As shown, the electronic device may include: a processor 710, a communication interface 720, a memory 730, and a communication bus 740, wherein the processor 710, the communication interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 may call the logic instructions in the memory 730 to execute a design method for a honeycomb sandwich vibration isolation base, wherein the honeycomb sandwich vibration isolation base includes: a honeycomb core, an upper rib plate, and a lower rib plate, wherein the honeycomb core is disposed between the upper rib plate and the lower rib plate. The method includes:

[0147] Based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, a plurality of sets of base design parameters are obtained, each set of base design parameters including a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information, and a rib thickness information;

[0148] Inputting each set of base design parameters into a preset analysis software, and outputting the total drop information of the acceleration level and the base weight information corresponding to each set of base design parameters;

[0149] Based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, the comprehensive performance evaluation value corresponding to each group of base design parameters is determined, and the target base design parameters in each group of base design parameters are determined according to the size sorting of each comprehensive performance evaluation value.

[0150] In addition, the logic instructions in the above-mentioned memory 730 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0151] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the honeycomb sandwich vibration isolation base design method provided by the above methods. The honeycomb sandwich vibration isolation base includes: a honeycomb core, an upper rib plate and a lower rib plate, wherein the honeycomb core is arranged between the upper rib plate and the lower rib plate. The method includes:

[0152] Based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, a plurality of sets of base design parameters are obtained, each set of base design parameters including a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information, and a rib thickness information;

[0153] Inputting each set of base design parameters into a preset analysis software, and outputting the total drop information of the acceleration level and the base weight information corresponding to each set of base design parameters;

[0154] Based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, the comprehensive performance evaluation value corresponding to each group of base design parameters is determined, and the target base design parameters in each group of base design parameters are determined according to the size sorting of each comprehensive performance evaluation value.

[0155] In another aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for designing a honeycomb sandwich vibration isolation base provided by the above methods is implemented. The honeycomb sandwich vibration isolation base includes: a honeycomb core, an upper rib plate, and a lower rib plate. The honeycomb core is disposed between the upper rib plate and the lower rib plate. The method includes:

[0156] Based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, a plurality of sets of base design parameters are obtained, each set of base design parameters including a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information, and a rib thickness information;

[0157] Inputting each set of base design parameters into a preset analysis software, and outputting the total drop information of the acceleration level and the base weight information corresponding to each set of base design parameters;

[0158] Based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, the comprehensive performance evaluation value corresponding to each group of base design parameters is determined, and the target base design parameters in each group of base design parameters are determined according to the size sorting of each comprehensive performance evaluation value.

[0159] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0160] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A design method for a honeycomb sandwich vibration isolation base, characterized in that: The honeycomb sandwich vibration isolation base includes: a honeycomb core, an upper rib plate and a lower rib plate, wherein the honeycomb core is arranged between the upper rib plate and the lower rib plate, and the method includes: Based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, a plurality of sets of base design parameters are obtained, each set of base design parameters including a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information, and a rib thickness information; Inputting each set of base design parameters into a preset analysis software, and outputting the total drop information of the acceleration level and the base weight information corresponding to each set of base design parameters; Based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, the comprehensive performance evaluation value corresponding to each group of base design parameters is determined, and the target base design parameters in each group of base design parameters are determined according to the size sorting of each comprehensive performance evaluation value.

2. The honeycomb sandwich vibration isolation base design method according to claim 1, characterized in that: Based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, multiple sets of base design parameters are obtained, including: The preset honeycomb core width threshold, the preset honeycomb core spacing threshold, the preset honeycomb core thickness threshold, and the preset rib thickness threshold are divided into N segments in a step-by-step manner to obtain N+1 preset honeycomb core width values, N+1 preset honeycomb core spacing values, N+1 preset honeycomb core thickness values, and N+1 preset rib thickness values; Based on any combination of the N+1 preset honeycomb core width values, the N+1 preset honeycomb core spacing values, the N+1 preset honeycomb core thickness values ​​and the N+1 preset rib thickness values, (N+1) is obtained. 4 Set base design parameters.

3. The design method of the honeycomb sandwich vibration isolation base according to claim 1, characterized in that: Input each set of base design parameters into the preset analysis software, and output the total drop information of the acceleration level and the base weight information corresponding to each set of base design parameters, including: The base design parameters of each group are input into COMSOL software to automatically calculate the total drop information of the acceleration level and the base weight information corresponding to the base design parameters; The acceleration level total drop information and the base weight information are transmitted to MATLAB software for storage.

4. The design method of the honeycomb sandwich vibration isolation base according to claim 1, characterized in that: Based on the total drop information of the acceleration vibration level and the base weight information corresponding to each set of the base design parameters, a comprehensive performance evaluation value corresponding to each set of the base design parameters is determined, including: Normalizing the total acceleration level drop information and the base weight information corresponding to each group of base design parameters to obtain normalized total acceleration level drop information and normalized base weight information; Obtaining the comprehensive performance evaluation value according to the product of the normalized base weight information and the first preset coefficient, and the product of the normalized total drop information of the acceleration level and the second preset coefficient; The first preset coefficient is associated with the lightweight level of the honeycomb sandwich vibration isolation base, and the second preset coefficient is associated with the vibration isolation capacity of the honeycomb sandwich vibration isolation base.

5. The design method of the honeycomb sandwich vibration isolation base according to claim 4, characterized in that: The normalized total acceleration level drop information is as follows: Where m = 1, 2, ... (N + 1) 4 , min(ΔB′) and max(ΔB′) are (N+1) 4 The minimum and maximum values ​​of the total difference information ΔB′ of the acceleration level.

6. The design method of the honeycomb sandwich vibration isolation base according to claim 4, characterized in that: The normalized base weight information is as follows: Where m = 1, 2, ... (N + 1) 4 , min(G) and max(G) are (N+1) 4 The minimum and maximum values ​​of the base weight information G.

7. A honeycomb sandwich vibration isolation base design device, characterized in that: The honeycomb sandwich vibration isolation base includes: a honeycomb core, an upper rib plate and a lower rib plate, wherein the honeycomb core is arranged between the upper rib plate and the lower rib plate, and the device includes: an acquisition module, which acquires multiple sets of base design parameters based on a preset honeycomb core width threshold, a preset honeycomb core spacing threshold, a preset honeycomb core thickness threshold, and a preset rib thickness threshold, wherein each set of base design parameters includes a honeycomb core width information, a honeycomb core spacing information, a honeycomb core thickness information, and a rib thickness information; An output module inputs each set of base design parameters into a preset analysis software, and outputs total drop information of acceleration level and base weight information corresponding to each set of base design parameters; A determination module determines the comprehensive performance evaluation value corresponding to each group of base design parameters based on the total drop information of acceleration vibration level and the base weight information corresponding to each group of base design parameters, and determines the target base design parameters in each group of base design parameters according to the size sorting of each comprehensive performance evaluation value.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the method for designing a honeycomb sandwich vibration isolation base as described in any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for designing a honeycomb sandwich vibration isolation base as claimed in any one of claims 1 to 6 is implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the method for designing a honeycomb sandwich vibration isolation base as claimed in any one of claims 1 to 6 is implemented.

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