Method and device for optimizing housing morphology applicable to dropping

Abstract

The present invention belongs to the technical field of product design, and discloses a method and device for optimizing the housing morphology suitable for dropping. The method includes: establishing a finite element model of the product housing; determining the applied load according to the characteristics of the product; applying the applied load to the finite element model under multiple dropping conditions to perform multi-condition dropping simulation; calculating the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition dropping simulation; and optimizing the morphology of the area to be optimized with the minimum comprehensive strain value as the target. The method of the embodiment of the present invention comprehensively considers multiple dropping conditions and multiple damage points to optimize the housing morphology of the product, and the optimized housing structure can meet the requirements of multiple dropping conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of product design, and particularly to a method and device for optimizing the shell morphology suitable for dropping. Background Art

[0002] During the transportation and handling of products such as range hoods, dropping is likely to occur. The proportion of appearance deformation caused by dropping exceeds 80%. Designers design the structure of the reinforcing ribs based on experience, and then conduct experiments or CAE verification on the stiffness. If the stiffness does not meet the requirements, the structure of the reinforcing ribs is changed for re-design, and so on. The above design method puts the cart before the horse, is time-consuming and laborious, and it takes a great cost to design a layout of the reinforcing ribs that meets the stiffness requirements. Summary of the Invention

[0003] Based on this, a method and device for optimizing the shell morphology suitable for dropping are provided to solve at least one of the above technical problems.

[0004] According to the first aspect of the present invention, a method for optimizing the shell morphology suitable for dropping is provided, including:

[0005] Establishing a finite element model of the product shell;

[0006] Determining the applied load according to the characteristics of the product;

[0007] Applying the applied load to the finite element model under multiple dropping conditions to perform multi-condition dropping simulation;

[0008] Calculating the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition dropping simulation;

[0009] Optimizing the morphology of the area to be optimized with the minimum comprehensive strain value as the goal.

[0010] In an alternative embodiment, the comprehensive strain value of the area to be optimized is calculated by the following formula:

[0011]

[0012] S is the comprehensive strain value, is the weight of the dropping condition i, is the strain value of the damage point j under the dropping condition i, is the strain safety value of the area to be optimized, n is the number of dropping conditions, and y is the number of damage points.

[0013] In an alternative embodiment, the weight of each dropping condition is determined by the proportion of the number of drops in the dropping condition in the total number of drops.

[0014] In an alternative embodiment, optimizing the topography of the area to be optimized further includes:

[0015] Setting the rib height, and optimizing the topography of the area to be optimized with the constraint that the rib height of the area to be optimized does not exceed the set rib height.

[0016] In an alternative embodiment, determining the loading load according to the characteristics of the product includes:

[0017] Obtaining the actual drop parameters, where the actual drop parameters include the total mass of the product and its packaging, the actual drop height, and the time from when the product contacts the ground until it stops during the drop;

[0018] Calculating the loading load according to the actual drop parameters.

[0019] In an alternative embodiment, the loading load is calculated by the following formula:

[0020] , where

[0021] In the formula, F is the loading load, is the impact force after the product with packaging drops to the ground, m is the total mass of the product and its packaging, H is the actual drop height, is the time from when the product contacts the ground until it stops during the drop.

[0022] In an alternative embodiment, the method further includes:

[0023] Performing proofing verification according to the optimization result. If the optimized housing structure meets the drop requirements, then the optimized housing structure is used as the final housing model; if the optimized housing structure does not meet the drop requirements, then a finite element model of the product housing is re-established and optimization continues.

[0024] According to the second aspect of the present invention, there is provided a housing topography optimization device suitable for drops, including:

[0025] A modeling module for establishing a finite element model of the product housing;

[0026] A load module for determining the loading load according to the characteristics of the product;

[0027] A simulation module for applying the loading load to the finite element model under multiple drop conditions for multi-condition drop simulation;

[0028] An optimization module for calculating the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition drop simulation; and optimizing the topography of the area to be optimized with the goal of minimizing the comprehensive strain value.

[0029] According to a third aspect of the present invention, there is provided an electronic device, which includes a memory and a processor. A computer program that can run on the processor is stored on the memory. When the processor executes the computer program, the steps of the method according to any embodiment of the present invention are implemented.

[0030] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method steps according to any embodiment of the present invention are implemented.

[0031] The present invention provides a method for optimizing the shell morphology suitable for dropping. The technical solutions provided by the embodiments of the present invention at least bring the following beneficial effects:

[0032] The method for optimizing the shell morphology suitable for dropping according to the embodiment of the present invention includes: establishing a finite element model of the product shell; determining the applied load according to the characteristics of the product; applying the applied load to the finite element model under multiple dropping conditions for multi-condition dropping simulation; calculating the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition dropping simulation; and optimizing the morphology of the area to be optimized with the minimum comprehensive strain value as the goal. The method of the embodiment of the present invention comprehensively considers multiple dropping conditions and multiple damage points to optimize the shell morphology of the product. The optimized shell structure can meet the requirements of various dropping conditions and effectively reduce the situation of appearance deformation caused by dropping.

[0033] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 It is a flowchart of a method for optimizing the shell morphology suitable for dropping provided by an embodiment of the present invention;

[0036] Figure 2 It is a schematic structural diagram of the original design scheme of the shell in the specific application of a method for optimizing the shell morphology suitable for dropping provided by an embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of the shell network model obtained in the specific application of a method for optimizing the shell morphology suitable for dropping provided by an embodiment of the present invention;

[0038] Figure 4 Schematic diagram of the packaged range hood model obtained in the specific application of a method for optimizing the housing morphology suitable for dropping provided by an embodiment of the present invention;

[0039] Figure 5 Schematic diagram of the morphology optimization obtained in the specific application of a method for optimizing the housing morphology suitable for dropping provided by an embodiment of the present invention;

[0040] Figure 6 Schematic diagram of the final optimization scheme obtained in the specific application of a method for optimizing the housing morphology suitable for dropping provided by an embodiment of the present invention;

[0041] Figure 7 Schematic diagram of the structure of a device for optimizing the housing morphology suitable for dropping provided by an embodiment of the present invention;

[0042] Figure 8 Schematic diagram of the composition structure of the control part of an electronic device provided by an embodiment of the present invention. Detailed implementation manners

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0044] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0045] Referring to

[0046] See Figure 1, embodiments of the present invention provide a method for optimizing the housing morphology suitable for dropping, including:

[0047] Establish a finite element model of the product housing;

[0048] Determine the applied load according to the characteristics of the product;

[0049] Apply the applied load to the finite element model under multiple dropping conditions to perform multi-condition dropping simulation;

[0050] Based on the strain values of each damage point obtained from the multi-condition dropping simulation, calculate the comprehensive strain value of the area to be optimized;

[0051] Optimize the morphology of the area to be optimized with the goal of minimizing the comprehensive strain value.

[0052] In the method for optimizing the housing morphology suitable for dropping according to the embodiments of the present invention, a finite element model of the product housing is established; the applied load is determined according to the characteristics of the product; the applied load is applied to the finite element model under multiple dropping conditions to perform multi-condition dropping simulation; based on the strain values of each damage point obtained from the multi-condition dropping simulation, calculate the comprehensive strain value of the area to be optimized; optimize the morphology of the area to be optimized with the goal of minimizing the comprehensive strain value. The method according to the embodiments of the present invention comprehensively considers multiple dropping conditions and multiple damage points to optimize the housing morphology of the product. The optimized housing structure can meet the requirements of multiple dropping conditions and effectively reduce the situation of appearance deformation caused by dropping.

[0053] In some embodiments, establishing a finite element model of the product housing may specifically include: establishing a structural model of the product; simplifying the structural model, performing geometric cleaning, dividing the mesh, and establishing a finite element model of the housing.

[0054] In the embodiments of the present invention, establishing the structural model may also include establishing a structural model of the product with packaging. Thus, the dropping of the product with outer packaging can be simulated. For example, when dropping occurs during transportation, the product is packed in the outer packaging and the product and the outer packaging drop as a whole. The products in the embodiments of the present invention may include various electrical appliances. For example, range hoods, microwave ovens, ovens, etc. Taking a range hood as an example, the method according to the embodiments of the present invention can establish a structural model of the range hood.

[0055] When establishing the finite element model, it may include simplifying the housing, performing geometric cleaning, and dividing the mesh. It may also include simplifying the product and the packaging, performing geometric cleaning, and dividing the mesh. In the embodiments of the present invention, one surface of the housing may be selected as the object to be optimized. When establishing the finite element model, at least the mesh needs to be divided on the object to be optimized. Taking a range hood as an example, the top plate of the housing is prone to deformation. Taking the top plate as the object to be optimized, when establishing the finite element model, it includes simplifying the top plate, performing geometric cleaning, and dividing the mesh.

[0056] In the embodiments of the present invention, for the parts not described in detail about the specific method of establishing the finite element model, such as the specific steps of geometric cleaning, meshing, etc., the prior art can be adopted and will not be elaborated here.

[0057] In some embodiments, the loading load is determined according to the characteristics of the product, including: obtaining the actual drop parameters, where the actual drop parameters include the total mass of the product and the packaging, the actual drop height, and the time from when the product contacts the ground until it stops during the product drop; calculating the loading load according to the actual drop parameters. In the embodiments of the present invention, the loading load can be determined according to the actual drop parameters such as the total mass of the product and the packaging, the actual drop height, and the time from when the product contacts the ground until it stops during the product drop. The actual drop parameters include the relevant parameters during the actual drop test. For the possible drop situations during the product transportation, in the corresponding drop tests, the product with the packaging as a whole is tested under each drop condition. The actual drop parameters specifically include the total mass of the product and the packaging, the actual drop height, and the time from when the product contacts the ground until it stops during the product drop.

[0058] In some embodiments, the loading load is calculated by the following formula:

[0059] , where

[0060] In the formula, F is the loading load, is the impact force after the product with the packaging drops to the ground, m is the total mass of the product and the packaging, H is the actual drop height, is the time from when the product contacts the ground until it stops during the product drop. The actual load in the drop test is related to the height, weight, etc. The formula for the impact force when the product with the packaging drops to the ground is as follows:

[0061]

[0062] where is the impact force after the product with the packaging drops to the ground, with the unit of N; is the time from when the product contacts the ground until it stops during the product drop. In specific implementation, taking the drop test of the range hood as an example, can be 0.06 s; is the total mass of the packaging and the product, with the unit of kg; is the speed difference from the maximum speed to the stationary speed, with the unit of m / s.

[0063]

[0064] where is the drop height, with the unit of m.

[0065]

[0066] Therefore, the formula for calculating the loading load applied to the finite element model is:

[0067]

[0068] According to the actual height and weight in the drop experiment, the loading load is calculated through the above formula.

[0069] In the method of the embodiment of the present invention, based on the strain values of each damage point obtained from the multi-condition drop simulation, the comprehensive strain value of the area to be optimized is calculated, and the morphology of the area to be optimized is optimized with the minimum comprehensive strain value as the goal, so as to obtain the optimized morphology characteristics. The multi-condition drop simulation performs simulations on multiple drop conditions respectively, so as to obtain the strain values of each damage point respectively. The multiple drop conditions can be selected from a total of ten drop conditions of one corner, three edges and six faces. In specific implementation, the drop conditions of six faces can be selected, or the drop conditions of one corner and six faces, a total of seven drop conditions, can be selected, or the drop conditions of three edges and six faces, a total of nine drop conditions, can be selected, or all ten drop conditions of one corner, three edges and six faces can be selected. When performing the drop experiment, the number of drops for each drop condition can be the same or different. Taking the six-face drop experiment of the range hood as an example, the drop conditions of six faces are selected. The top plate of the housing is prone to deformation. Therefore, on the basis of one drop for each face, the number of drops for the top plate drop condition is increased by four times additionally. A total of ten drops are performed for the six drop conditions. Among them, the number of drops for the top plate drop condition is five, and the number of drops for the drop conditions of other faces is one respectively.

[0070] In some embodiments, calculating the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition drop simulation includes: obtaining the weight of each drop condition, the strain value of each damage point in each drop condition, and the strain safety value of the area to be optimized, and calculating the comprehensive strain value of the area to be optimized according to the weight of each drop condition, the strain value of each damage point in each drop condition, and the strain safety value of the area to be optimized.

[0071] In some embodiments, the comprehensive strain value of the area to be optimized is calculated by the following formula:

[0072]

[0073] S is the comprehensive strain value, is the weight of the drop condition i, is the strain value of the damage point j in the drop condition i, is the strain safety value of the area to be optimized, n is the number of drop conditions, and y is the number of damage points.

[0074] In some embodiments, the weight of each drop condition is determined by the proportion of the number of drops in the drop condition to the total number of drops. The weight of each drop condition can be determined according to the proportion of the number of drops in each drop condition to the total number of drops. Taking the six-sided drop test of a range hood as an example, six drop conditions of the six sides are selected. The top plate of the housing is prone to deformation. Therefore, on the basis of one drop for each side, the number of drops in the drop condition of the top plate is additionally increased by four times. A total of ten drops are carried out for the six drop conditions. Among them, the number of drops in the drop condition of the top plate is five times, and the number of drops in the drop conditions of the other sides is one time each. Therefore, the weight of the drop condition of the top plate is 0.5, and the weights of the drop conditions of the other sides are 0.1 each.

[0075] In some embodiments, to optimize the topography of the area to be optimized, it further includes: setting the rib height, and using the condition that the rib height of the area to be optimized does not exceed the rib height as a constraint to optimize the topography of the area to be optimized. By setting the rib height, the rib height is used to constrain the height of the reinforcing rib, and with the goal of minimizing the comprehensive strain value, the optimized result of the topography of the optimized area can be obtained. According to the optimized result, a corresponding geometric model is established, and a corresponding product can be manufactured according to the geometric model.

[0076] In some embodiments, the method of the embodiments of the present invention further includes: performing proofing verification according to the optimized result. If the optimized housing structure meets the drop requirements, the optimized housing structure is used as the final housing model; if the optimized housing structure does not meet the drop requirements, a finite element model of the product housing is re-established and optimization continues. After optimizing the topography of the area to be optimized by using the method of the embodiments of the present invention, the optimized result of the topography of the optimized area can be obtained. According to the optimized result, a corresponding geometric model is established, and a corresponding product can be manufactured according to the geometric model. Proofing is carried out according to the optimized result, and a drop test is performed on the proofing product to verify whether the actual product can meet the drop requirements. If the actual product meets the drop requirements, the optimized housing structure is used as the final housing model to complete the optimization of the product topography. If the optimized housing structure does not meet the drop requirements, a finite element model of the product housing is re-established and optimization continues until the optimized housing structure meets the drop requirements.

[0077] Taking a range hood as an example, with the constraint that the rib height of the area to be optimized does not exceed the rib starting height, and with the goal of minimizing the comprehensive strain value, the morphology of the area to be optimized is optimized to obtain the first version of the geometric model. The range hood is manufactured according to the first version of the geometric model, and a drop test is carried out. If the actual product meets the drop requirements, the first version of the geometric model is used as the final shell model, and the optimization of the product morphology is ended. If the actual product does not meet the drop requirements, a finite element model is re-established and the optimization continues to obtain the second version of the geometric model to manufacture the range hood and conduct a drop test. If the actual product meets the drop requirements, the second version of the geometric model is used as the final shell model, and the optimization of the product morphology is ended. If the actual product does not meet the drop requirements, a finite element model is re-established and the optimization continues until the shell structure obtained by the optimization meets the drop requirements.

[0078] Taking the morphology optimization of the range hood shell as an example, the optimization process and effect of the shell morphology optimization method applicable to dropping in the embodiments of the present invention will be described below.

[0079] The original design scheme of the top plate of the range hood shell is as Figure 2 shown. Through the drop test on the original design scheme, it is found that the deformation occurs in three areas of the top plate, forming damage points, as Figure 2 shown by the red areas in.

[0080] First, establish a product structure model, conduct conventional model simplification, geometric cleaning, and mesh division on the structure model to establish a finite element model. The obtained shell mesh model is shown in Figure 3 . The model of the range hood with packaging is as Figure 4 shown.

[0081] Determine the loading load according to the product characteristics. Among them, the total mass m of the packaging and the range hood, and the drop height H are brought into the calculation to obtain the impact force F received by the packaging during the drop.

[0082] In this embodiment, when considering the drop of the range hood, the drop of 6 surfaces is mainly considered. Therefore, set the drop conditions of 6 surfaces. According to the drop settings of each drop condition, select the weighting coefficients of 6 drop conditions. According to the drop requirements, one side of the top plate needs to be continuously dropped 4 times additionally, and the other surfaces only need to be dropped once. Therefore, the drop condition of one side of the top plate needs to be set with a larger weight, and its weight is specifically 0.5, and the weights of the drop conditions of the other surfaces are 0.1 respectively.

[0083] In this embodiment, the object to be optimized is the top plate. Therefore, set the optimization area to be the top plate of the range hood shell. According to the process limitations, the rib starting height is limited to 5 mm. Taking the strain value of the red area in Figure 2 as a reference, substitute it into the calculation formula and set the comprehensive strain value to be the smallest.

[0084] Apply the loading load to the finite element model under multiple drop conditions, conduct multi-condition drop simulations, and extract the strain values of each damage point under each drop condition. See Table 1 for details. Condition 1 is the drop condition corresponding to one side of the top plate, and the weight is taken as 0.5; the weights of the remaining conditions 2 to 6 are 0.1. The strain safety value can be determined by empirical values. In this embodiment, the strain safety value is taken as 0.05.

[0085] Table 1

[0086]

[0087] According to the formula Calculate the comprehensive strain value s, where the number of damage points y is 3 and the number of drop conditions n is 6.

[0088] Strain value of damage point 1:

[0089]

[0090] Strain value of damage point 2:

[0091]

[0092] Strain value of damage point 3:

[0093]

[0094] Comprehensive strain value = Strain value of damage point 1 + Strain value of damage point 2 + Strain value of damage point 3 = 0.1443 + 0.2721 + 0.2004 = 0.6168

[0095] See Figure 5 The optimized morphology optimization result shown. It can be clearly seen that the red area needs to be stiffened. According to the manufacturing process, optimize the structure based on the original design scheme to obtain the final scheme of the top plate as shown in Figure 6 shown.

[0096] See Figure 7 , this embodiment of the present invention provides a device for optimizing the morphology of a housing suitable for dropping, including a modeling module, a load module, a simulation module, and an optimization module. The modeling module is used to establish a finite element model of the product housing; the load module is used to determine the applied load according to the characteristics of the product; the simulation module is used to apply the applied load to the finite element model under multiple drop conditions to conduct multi-condition drop simulations; the optimization module is used to calculate the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition drop simulations; and optimize the morphology of the area to be optimized with the goal of minimizing the comprehensive strain value.

[0097] The device for optimizing the housing morphology applicable to dropping in the embodiments of the present invention can implement the methods of the above-mentioned embodiments, and the descriptions of the above method embodiments can all be used to understand and interpret the device of the embodiments of the present invention. For the purpose of simplicity and saving space, it will not be repeated here.

[0098] According to an embodiment of the present invention, the present invention also provides an electronic device and a readable storage medium.

[0099] The embodiments of the present invention provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method of any one of the above is implemented.

[0100] Please refer to Figure 8 , which is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. As Figure 8 shown, the electronic device 600 may include: at least one processor 601, at least one network interface 604, a user interface 603, a memory 605, and at least one communication bus 602.

[0101] Among them, the communication bus 602 is used to realize the connection and communication between these components.

[0102] Among them, the user interface 603 may include a display screen (Display) and a camera (Camera), and optionally, the user interface 603 may further include a standard wired interface and a wireless interface.

[0103] Among them, the network interface 604 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).

[0104] Among them, the processor 601 may include one or more processing cores. The processor 601 uses various interfaces and circuits to connect various parts within the entire electronic device 600. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 605, and by invoking the data stored in the memory 605, it executes various functions of the electronic device 600 and processes data. Optionally, the processor 601 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), or programmable logic array (PLA). The processor 601 may integrate one or a combination of several of a central processing unit (CPU), a graphics processing unit (GPU), and a modem, etc. Among them, the CPU mainly processes the operating system, user interface, application programs, etc.; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the processor 601 and may be implemented separately by a single chip.

[0105] Among them, the memory 605 may include random access memory (RAM) and may also include read-only memory. Optionally, the memory 605 includes a non-transitory computer-readable storage medium. The memory 605 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 605 may include a program storage area and a data storage area. Among them, the program storage area may store instructions for implementing the operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-mentioned method embodiments, etc.; the data storage area may store the data involved in the above-mentioned method embodiments. Optionally, the memory 605 may also be at least one storage device located far from the aforementioned processor 601. As Figure 8 shown, the memory 605, as a computer storage medium, may include an operating system, a network communication module, a user interface module, and application programs.

[0106] In Figure 8In the electronic device 600 shown, the user interface 603 is mainly used to provide an interface for the user to input and obtain the data input by the user; and the processor 601 can be used to call the application programs stored in the memory 605 and specifically execute the operations of any of the above method embodiments.

[0107] The present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented. Among them, the computer-readable storage medium may include, but is not limited to, any type of disk, including floppy disks, optical disks, DVDs, CD-ROMs, microdrives, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nano-systems (including molecular memory ICs), or any type of medium or device suitable for storing instructions and / or data.

[0108] The embodiment of the present invention also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps of any one of the methods described in the above method embodiments.

[0109] Those skilled in the art can clearly understand that the technical solutions of the present invention can be implemented by means of software and / or hardware. The "units" and "modules" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, and the hardware can be, for example, a Field-Programmable Gate Array (FPGA), an Integrated Circuit (IC), etc.

[0110] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0111] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0112] In several embodiments provided by the present invention, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of devices or units can be in electrical or other forms.

[0113] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0114] In addition, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0115] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present invention. And the aforementioned memory includes: USB flash drives, read-only memory (ROM), random access memory (RAM), mobile hard disks, magnetic disks, or optical disks and other media that can store program codes.

[0116] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program. This program can be stored in a computer-readable memory. The memory can include: flash drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, etc.

[0117] The above are only exemplary embodiments of the present invention and should not be used to limit the scope of the present invention. That is, any equivalent changes and modifications made in accordance with the teachings of the present invention still fall within the scope covered by the present invention. Those skilled in the art will readily think of other embodiments of the present invention after considering the specification and practicing the disclosure herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not recorded in the present invention. The specification and embodiments are only regarded as exemplary, and the scope and spirit of the present invention are defined by the claims.

Claims

1. A method for optimizing the housing morphology suitable for dropping, characterized in that Including: Establishing a finite element model of the product housing; Determining the applied load according to the characteristics of the product; Applying the applied load to the finite element model under multiple drop conditions for multi-condition drop simulation; Calculating the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition drop simulation; Optimizing the topography of the area to be optimized with the goal of minimizing the comprehensive strain value; Among them, the comprehensive strain value of the area to be optimized is calculated by the following formula: S is the comprehensive strain value, is the weight of the dropping condition i, is the strain value of the damage point j under the dropping condition i, is the strain safety value of the area to be optimized, n is the number of dropping conditions, and y is the number of damage points.

2. The method according to claim 1, wherein The weight of each drop condition is determined by the proportion of the number of drops in the drop condition in the total number of drops.

3. The method according to claim 1, wherein Optimizing the topography of the area to be optimized further includes: Setting the rib height, and optimizing the topography of the area to be optimized with the constraint that the rib height of the area to be optimized does not exceed the rib height.

4. The method according to claim 1, wherein Determining the applied load according to the characteristics of the product, including: Obtaining the actual drop parameters, where the actual drop parameters include the total mass of the product and the packaging, the actual drop height, and the time from when the product contacts the ground to when it stops during the drop; Calculating the applied load according to the actual drop parameters.

5. The method according to claim 4, wherein The applied load is calculated by the following formula: , wherein Where, F is the applied load, is the impact force after the product with packaging falls to the ground, m is the total mass of the product and the packaging, H is the actual drop height, is the time from when the product touches the ground to when it comes to rest during the drop.

6. The method according to claim 1, wherein Also including: Making a sample for verification according to the optimization result. If the optimized housing structure meets the drop requirements, the optimized housing structure is used as the final housing model; if the optimized housing structure does not meet the drop requirements, a finite element model of the product housing is re-established and the optimization continues.

7. A housing morphology optimization device suitable for dropping, characterized in that, Including: A modeling module for establishing a finite element model of the product housing; A load module for determining the applied load according to the characteristics of the product; A simulation module for applying the applied load to the finite element model under multiple drop conditions for multi-condition drop simulation; Optimization module, which is used to calculate the comprehensive strain value of the area to be optimized based on the strain values of each damage point obtained from the multi-condition drop simulation through the following formula: S is the comprehensive strain value, is the weight of the dropping condition i, is the strain value of the damage point j under the dropping condition i, is the strain safety value of the area to be optimized, n is the number of dropping conditions, and y is the number of damage points; with the goal of minimizing the comprehensive strain value, the morphology of the area to be optimized is optimized.

8. An electronic device, the electronic device comprising a memory and a processor, and a computer program capable of running on the processor is stored on the memory, characterized in that, When the processor executes the computer program, it implements the steps of the method described in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method described in any one of claims 1 to 6.

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