Piezoelectric material oil tank vibration reduction layout method and system based on simulation optimization

Abstract

The invention provides a piezoelectric material fuel tank vibration reduction layout method and system based on simulation optimization, and the method is applied to a simulation platform to set simulation parameters for a pre-constructed three-dimensional finite element fuel tank model, and carries out the simulation analysis on the surface of the three-dimensional finite element fuel tank model based on a plurality of piezoelectric material layout schemes. And obtaining a vibration suppression effect corresponding to each piezoelectric material layout scheme, performing suppression effect analysis on the vibration suppression effect based on a preset index, and determining a target piezoelectric material layout scheme based on a suppression effect analysis result. According to the method, the layout of the piezoelectric material is optimized by utilizing simulation software, and the optimal layout scheme is determined by analyzing simulation results under different layout schemes, so that the optimization of the layout scheme of the piezoelectric material is realized.

Description

Technical Field

[0001] The present invention relates to the field of vibration control, and in particular to a piezoelectric material oil tank vibration reduction layout method and system based on simulation optimization. Background Art

[0002] Fuel tanks, a crucial component of vehicles like aviation, aerospace, automobiles, and ships, often face challenges with fluid fluctuations and structural instability caused by external vibrations. This is especially true during high-speed driving or flight, where tank vibrations can impact overall safety and performance. While traditional passive vibration reduction technologies, such as isolators and vibration-absorbing materials, can mitigate some vibration, they are limited in effectiveness when dealing with complex vibration frequencies and diverse vibration modes.

[0003] Piezoelectric materials, due to their ability to actively suppress vibrations through electric field modulation, have become a key research area in active vibration reduction in recent years. However, existing technologies often suffer from irrational layout design issues, which hinders their full vibration reduction effectiveness. For example, the distribution of piezoelectric materials lacks specificity, making it unable to effectively address the multi-frequency vibrations of fuel tank surfaces. Consequently, their vibration reduction effectiveness is limited in practical applications.

[0004] Therefore, how to optimize the layout of piezoelectric materials to maximize the vibration control effect of the fuel tank becomes the key to solving the fuel tank vibration problem. Summary of the Invention

[0005] In order to solve the problem that the distribution method of piezoelectric materials in the existing technology lacks specificity and cannot effectively meet the needs of multi-frequency vibration on the surface of the fuel tank, the present invention proposes a piezoelectric material fuel tank vibration reduction layout method and system based on simulation optimization.

[0006] In a first aspect, a piezoelectric material tank vibration reduction layout method based on simulation optimization is provided, comprising performing the following operations based on a simulation platform:

[0007] Set simulation parameters for a pre-built 3D finite element tank model;

[0008] Performing simulation analysis on the surface of the three-dimensional finite element tank model based on multiple piezoelectric material layout schemes, and obtaining the vibration suppression effect corresponding to each piezoelectric material layout scheme;

[0009] The vibration suppression effect is analyzed based on preset indicators, and a target piezoelectric material layout scheme is determined based on the suppression effect analysis results.

[0010] Preferably, the three-dimensional finite element tank model is constructed by:

[0011] A three-dimensional finite element tank model is constructed based on the acquired size, shape and working environment of the tank, and the tank shell structure, liquid dynamics and piezoelectric material of the three-dimensional finite element tank model are set.

[0012] Preferably, the piezoelectric material includes: lead-based piezoelectric ceramics, non-lead-based piezoelectric ceramics or flexible piezoelectric composite materials.

[0013] Preferably, the simulation parameters include one or more of the following: boundary conditions, load types or vibration modes.

[0014] Preferably, the preset indicators include at least one or more of the following: stress, displacement or vibration frequency.

[0015] Preferably, determining the target piezoelectric material layout scheme based on the suppression effect analysis result includes:

[0016] Based on the suppression effect analysis results, the vibration suppression of each piezoelectric material layout scheme on the stress and displacement of the fuel tank at different vibration frequencies is determined, and the piezoelectric material layout scheme with the best vibration suppression effect is selected as the initial piezoelectric material layout scheme;

[0017] With the goal of maximizing the vibration reduction and suppression effect, the initial piezoelectric material layout scheme is optimized based on the simulation analysis results corresponding to the initial piezoelectric material layout scheme to obtain a target piezoelectric material layout scheme.

[0018] Preferably, the plurality of piezoelectric material layout schemes include: uniform layout, concentrated layout, and dispersed layout.

[0019] In a second aspect, the present invention provides a piezoelectric material tank vibration reduction layout system based on simulation optimization, characterized in that it is applied to a simulation platform and includes:

[0020] A setup module for setting simulation parameters for a pre-built 3D finite element tank model;

[0021] an analysis module, configured to perform simulation analysis on the surface of the three-dimensional finite element tank model based on multiple piezoelectric material layout schemes, and obtain a vibration suppression effect corresponding to each piezoelectric material layout scheme;

[0022] The determination module is used to perform a suppression effect analysis on the vibration suppression effect based on preset indicators, and determine a target piezoelectric material layout scheme based on the suppression effect analysis result.

[0023] Preferably, the construction method of the three-dimensional finite element tank model in the setting module includes:

[0024] A three-dimensional finite element tank model is constructed based on the acquired size, shape and working environment of the tank, and the tank shell structure, liquid dynamics and piezoelectric material of the three-dimensional finite element tank model are set.

[0025] Preferably, the piezoelectric material in the setting module includes: lead-based piezoelectric ceramics, non-lead-based piezoelectric ceramics or flexible piezoelectric composite materials.

[0026] Preferably, the simulation parameters in the setting module include one or more of the following: boundary conditions, load types or vibration modes.

[0027] Preferably, the preset indicators in the determination module include at least one or more of the following: stress, displacement or vibration frequency.

[0028] Preferably, the determination module determines the target piezoelectric material layout scheme based on the suppression effect analysis result, including:

[0029] Based on the suppression effect analysis results, the vibration suppression of each piezoelectric material layout scheme on the stress and displacement of the fuel tank at different vibration frequencies is determined, and the piezoelectric material layout scheme with the best vibration suppression effect is selected as the initial piezoelectric material layout scheme;

[0030] With the goal of maximizing the vibration reduction and suppression effect, the initial piezoelectric material layout scheme is optimized based on the simulation analysis results corresponding to the initial piezoelectric material layout scheme to obtain a target piezoelectric material layout scheme.

[0031] Preferably, the multiple piezoelectric material layout schemes in the analysis module include: uniform layout, centralized layout, and dispersed layout.

[0032] In another aspect, the present application further provides an electronic device, comprising: at least one processor and a memory; the memory and the processor are connected via a bus;

[0033] The memory is used to store one or more programs;

[0034] When the one or more programs are executed by the at least one processor, the piezoelectric material oil tank vibration reduction layout method based on simulation optimization as described above is implemented.

[0035] On the other hand, the present application also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed, the piezoelectric material oil tank vibration reduction layout method based on simulation optimization as described above is implemented.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present invention provides a piezoelectric material tank vibration reduction layout method and system based on simulation optimization. This method, applied to a simulation platform, sets simulation parameters for a pre-constructed three-dimensional finite element tank model. It then performs simulation analysis on the surface of the three-dimensional finite element tank model based on multiple piezoelectric material layout schemes, obtains the vibration suppression effect corresponding to each piezoelectric material layout scheme, then analyzes the vibration suppression effect based on preset indicators, and determines a target piezoelectric material layout scheme based on the suppression effect analysis results. The present invention utilizes simulation software to optimize the piezoelectric material layout. By analyzing the simulation results under different layout schemes, the optimal layout scheme is determined to achieve optimization of the piezoelectric material layout scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a flow chart of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0039] Figure 2 A schematic diagram of a fixed constraint surface of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0040] Figure 3 This is a schematic layout diagram of Example 3 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0041] Figure 4 This is a schematic diagram of the layout of Example 4 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0042] Figure 5 This is a schematic diagram of the layout of Example 5 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0043] Figure 6 This is a schematic diagram of the layout of Example 6 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0044] Figure 7 This is a schematic layout diagram of Example 7 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0045] Figure 8 This is a schematic diagram of displacement simulation of Example 3 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0046] Figure 9 This is a schematic diagram of displacement simulation of Example 4 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0047] Figure 10 This is a schematic diagram of displacement simulation of Example 5 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0048] Figure 11 This is a schematic diagram of displacement simulation of Example 6 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0049] Figure 12 This is a schematic diagram of displacement simulation of Example 7 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0050] Figure 13 This is a schematic diagram of displacement simulation of Example 8 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0051] Figure 14 This is a schematic diagram of stress simulation of Example 3 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0052] Figure 15 This is a schematic diagram of stress simulation of Example 4 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0053] Figure 16 This is a schematic diagram of stress simulation of Example 5 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0054] Figure 17 This is a schematic diagram of stress simulation of Example 6 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0055] Figure 18 This is a schematic diagram of stress simulation of Example 7 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0056] Figure 19 This is a schematic diagram of stress simulation of Example 8 of the piezoelectric material oil tank vibration reduction layout method based on simulation optimization of the present invention;

[0057] Figure 20 This is a schematic diagram of the structure of the piezoelectric material oil tank vibration reduction layout system based on simulation optimization of the present invention;

[0058] Figure 21 The figure is a schematic structural diagram of an electronic device of the present invention. DETAILED DESCRIPTION

[0059] This paper proposes a piezoelectric material fuel tank vibration reduction layout method and system based on simulation optimization. This method selects piezoelectric materials suitable for the fuel tank surface, such as piezoelectric ceramics or flexible piezoelectric composites, and performs simulation analysis based on the tank's shape and vibration characteristics. Using advanced simulation software (such as COMSOL), different layouts are simulated, such as uniform distribution, centralized layout, and decentralized layout, and their vibration responses under different operating conditions are analyzed. By analyzing key parameters such as displacement and stress, the material layout is optimized to achieve the best vibration reduction effect.

[0060] In order to better understand the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0061] Example 1:

[0062] A piezoelectric material tank vibration reduction layout method based on simulation optimization, such as Figure 1 As shown, the following operations are performed based on the simulation platform:

[0063] Step 1: Set simulation parameters for the pre-built 3D finite element tank model;

[0064] Step 2: performing simulation analysis on the surface of the three-dimensional finite element tank model based on multiple piezoelectric material layout schemes, and obtaining the vibration suppression effect corresponding to each piezoelectric material layout scheme;

[0065] Step 3: Analyze the vibration suppression effect based on preset indicators, and determine the target piezoelectric material layout scheme based on the suppression effect analysis results.

[0066] The simulation parameters include, but are not limited to, one or more of the following: boundary conditions, load types, or vibration modes;

[0067] The preset indicators include but are not limited to at least one or more of the following: stress, displacement or vibration frequency;

[0068] Multiple piezoelectric material layout schemes include but are not limited to: uniform layout, concentrated layout, and dispersed layout.

[0069] In this embodiment, before executing step 1 to set simulation parameters for the pre-built three-dimensional finite element fuel tank model, it is necessary to pre-build a three-dimensional finite element fuel tank model corresponding to the mailbox to indirectly improve the efficiency of subsequent simulation, which specifically includes:

[0070] A three-dimensional finite element tank model is constructed based on the acquired size, shape and working environment of the tank, and the tank shell structure, liquid dynamics and piezoelectric material of the three-dimensional finite element tank model are set.

[0071] The piezoelectric material includes but is not limited to lead-based piezoelectric ceramics, non-lead-based piezoelectric ceramics or flexible piezoelectric composite materials.

[0072] In this embodiment, the process of determining the target piezoelectric material layout scheme based on the suppression effect analysis result includes:

[0073] Based on the suppression effect analysis results, the vibration suppression of each piezoelectric material layout scheme on the stress and displacement of the fuel tank at different vibration frequencies is determined, and the piezoelectric material layout scheme with the best vibration suppression effect is selected as the initial piezoelectric material layout scheme;

[0074] With the goal of maximizing the vibration reduction and suppression effect, the initial piezoelectric material layout scheme is optimized based on the simulation analysis results corresponding to the initial piezoelectric material layout scheme to obtain a target piezoelectric material layout scheme.

[0075] Specifically, the tank model structure was simulated for vibration mode and a layout was developed based on the simulation results. The displacement and stress of the tank model at different characteristic frequencies under different layouts were compared and analyzed. The effect of the layout on the displacement and stress of the tank model was analyzed, and the vibration frequency was controlled by adjusting the input voltage, frequency, and waveform of the signal generator.

[0076] This invention provides a piezoelectric material layout scheme based on simulation optimization for active vibration suppression in fuel tanks. This scheme overcomes the existing problems of irrational piezoelectric material layout and poor vibration reduction, ensuring that the piezoelectric material can maximize its vibration reduction effect on the fuel tank surface, significantly improving vibration suppression efficiency. It is particularly suitable for controlling complex vibration frequencies and modes, ensuring that the fuel tank remains stable during high-speed driving or flight.

[0077] The advantages of this invention lie in: through simulation-based layout optimization, the piezoelectric material is optimally distributed across the fuel tank surface, effectively suppressing vibrations across different frequency bands. Furthermore, the use of flexible piezoelectric composite materials allows for better adaptation to the complex surface of the fuel tank, enhancing the adaptability and reliability of vibration control. Ultimately, this achieves active suppression of fuel tank vibrations, significantly improving the tank's stability and safety.

[0078] Example 2:

[0079] The present invention provides a piezoelectric material oil tank vibration reduction layout solution based on simulation optimization, comprising the following steps:

[0080] 1. Identify fuel tank vibration issues and their impact on safety and performance, and set the goal of actively suppressing fuel tank vibration by optimizing the piezoelectric material layout.

[0081] 2. Select appropriate piezoelectric materials, such as lead-based piezoelectric ceramics, non-lead-based piezoelectric ceramics or flexible piezoelectric composite materials, and determine the material type based on its characteristics (such as piezoelectric effect and flexible adaptability).

[0082] 3. Establish a three-dimensional finite element model based on the size, shape and working environment of the fuel tank, taking into account the tank shell structure, liquid dynamics and other influencing factors.

[0083] 4. Select appropriate simulation software (such as ANSYS, COMSOL) and set simulation parameters (such as boundary conditions, load type, vibration mode, etc.) to ensure that the model can truly reflect the actual working conditions.

[0084] 5. Simulate different piezoelectric material layouts on the tank surface (e.g., uniform layout, concentrated layout, dispersed layout, etc.) and analyze the effects of different layouts on vibration suppression.

[0085] 6. Perform vibration analysis on the simulation results, focusing on parameters such as stress, displacement, and vibration frequency, and optimize the layout plan based on the analysis results.

[0086] 7. Confirm the optimization plan. Based on the simulation and vibration analysis results, optimize the layout of the piezoelectric material to ensure that it can maximize the vibration reduction effect and adapt to the complex surface morphology of the fuel tank.

[0087] The present invention uses a flexible piezoelectric composite material, which has better adaptability than traditional rigid piezoelectric ceramics and can adapt to the curved shapes and dynamic changes of the fuel tank surface. The use of flexible materials not only improves the vibration reduction effect, but also increases the stability and durability of the system, ensuring reliability under long-term operation. The present invention uses active vibration reduction technology of piezoelectric materials to adjust vibration in real time through the action of electric fields. It can actively sense the vibration of the fuel tank and perform feedback adjustment to eliminate unstable factors in a timely manner. This ability to actively suppress vibration enables the fuel tank to maintain higher safety and performance in complex environments, effectively preventing safety hazards such as structural damage or liquid instability caused by vibration.

[0088] Example 3

[0089] This embodiment provides a piezoelectric material oil tank vibration reduction layout solution based on simulation optimization, including the following steps:

[0090] 1. Based on the actual size, shape, and operating environment of the fuel tank, a 3D finite element model of the fuel tank was created. The tank model was a 168x76x110.5mm rectangular parallelepiped. A 167.6x75.6x110.1mm module was also used to subtract the interior of the model. The overall tank model was a hollow box made of 0.4mm thick steel.

[0091] 2. The fuel tank material is set to Steel AISI 4340 from the COMSOL material library, with a density of 7.85g / cm 3 , Young's modulus is 205 GPa, and Poisson's ratio is 0.28. The piezoelectric ceramic material is set to PZT-5H in the COMSOL material library.

[0092] 3. In the solid mechanics parameter setting, first set Figure 2 The surface shown is set as a fixed constraint, while a fixed acceleration is applied to the opposite surface. The remaining surfaces are set as free boundaries. A voltage of 100 V is applied across the piezoelectric material, causing it to deform mechanically.

[0093] 4. An appropriate computational grid was constructed to analyze the simulation results, including stress distribution, deformation, and response characteristics of the piezoelectric material.

[0094] 5. The piezoelectric material layout is as follows Figure 3 Shown: The number is 1 and it is arranged at the center of the vibration damping surface.

[0095] Example 4

[0096] This embodiment provides another piezoelectric material tank vibration reduction layout solution based on simulation optimization, including the following steps:

[0097] 1. Based on the actual size, shape, and operating environment of the fuel tank, a 3D finite element model of the fuel tank was created. The tank model was a 168x76x110.5mm rectangular parallelepiped. A 167.6x75.6x110.1mm module was also used to subtract the interior of the model. The overall tank model was a hollow box made of 0.4mm thick steel.

[0098] 2. The fuel tank material is set to Steel AISI 4340 from the COMSOL material library, with a density of 7.85g / cm 3 , Young's modulus is 205 GPa, and Poisson's ratio is 0.28. The piezoelectric ceramic material is set to PZT-5H in the COMSOL material library.

[0099] 3. In the solid mechanics parameter setting, first set Figure 2 The surface shown is set as a fixed constraint, while a fixed acceleration is applied to the opposite surface. The remaining surfaces are set as free boundaries. A voltage of 100 V is applied across the piezoelectric material, causing it to deform mechanically.

[0100] 4. An appropriate computational grid was constructed to analyze the simulation results, including stress distribution, deformation, and response characteristics of the piezoelectric material.

[0101] 5. The piezoelectric material layout is as follows Figure 4As shown: There are 2 of them, which are arranged symmetrically on the vibration damping surface.

[0102] Example 5

[0103] This embodiment provides another piezoelectric material tank vibration reduction layout solution based on simulation optimization, including the following steps:

[0104] 1. Based on the actual size, shape, and operating environment of the fuel tank, a 3D finite element model of the fuel tank was created. The tank model was a 168x76x110.5mm rectangular parallelepiped. A 167.6x75.6x110.1mm module was also used to subtract the interior of the model. The overall tank model was a hollow box made of 0.4mm thick steel.

[0105] 2. The fuel tank material is set to Steel AISI 4340 from the COMSOL material library, with a density of 7.85g / cm 3 , Young's modulus is 205 GPa, and Poisson's ratio is 0.28. The piezoelectric ceramic material is set to PZT-5H in the COMSOL material library.

[0106] 3. In the solid mechanics parameter setting, first set Figure 2 The surface shown is set as a fixed constraint, while a fixed acceleration is applied to the opposite surface. The remaining surfaces are set as free boundaries. A voltage of 100 V is applied across the piezoelectric material, causing it to deform mechanically.

[0107] 4. An appropriate computational grid was constructed to analyze the simulation results, including stress distribution, deformation, and response characteristics of the piezoelectric material.

[0108] 5. The piezoelectric material layout is as follows Figure 5 As shown: the number is 3, and they are arranged symmetrically on the vibration damping surface.

[0109] Example 6

[0110] This embodiment provides another piezoelectric material tank vibration reduction layout solution based on simulation optimization, including the following steps:

[0111] 1. Based on the actual size, shape, and operating environment of the fuel tank, a 3D finite element model of the fuel tank was created. The tank model was a 168x76x110.5mm rectangular parallelepiped. A 167.6x75.6x110.1mm module was also used to subtract the interior of the model. The overall tank model was a hollow box made of 0.4mm thick steel.

[0112] 2. The fuel tank material is set to Steel AISI 4340 from the COMSOL material library, with a density of 7.85g / cm 3, Young's modulus is 205 GPa, and Poisson's ratio is 0.28. The piezoelectric ceramic material is set to PZT-5H in the COMSOL material library.

[0113] 3. In the solid mechanics parameter setting, first set Figure 2 The surface shown is set as a fixed constraint, while a fixed acceleration is applied to the opposite surface. The remaining surfaces are set as free boundaries. A voltage of 100 V is applied across the piezoelectric material, causing it to deform mechanically.

[0114] 4. An appropriate computational grid was constructed to analyze the simulation results, including stress distribution, deformation, and response characteristics of the piezoelectric material.

[0115] 5. The piezoelectric material layout is as follows Figure 6 As shown: There are 4 of them, which are arranged symmetrically on the vibration damping surface.

[0116] Example 7

[0117] This embodiment provides another piezoelectric material tank vibration reduction layout solution based on simulation optimization, including the following steps:

[0118] 1. Based on the actual size, shape, and operating environment of the fuel tank, a 3D finite element model of the fuel tank was created. The tank model was a 168x76x110.5mm rectangular parallelepiped. A 167.6x75.6x110.1mm module was also used to subtract the interior of the model. The overall tank model was a hollow box made of 0.4mm thick steel.

[0119] 2. The fuel tank material is set to Steel AISI 4340 from the COMSOL material library, with a density of 7.85g / cm 3 , Young's modulus is 205 GPa, and Poisson's ratio is 0.28. The piezoelectric ceramic material is set to PZT-5H in the COMSOL material library.

[0120] 3. In the solid mechanics parameter setting, we first set Figure 2 The surface shown is set as a fixed constraint, while a fixed acceleration is applied to the opposite surface. The remaining surfaces are set as free boundaries. A voltage of 100 V is applied across the piezoelectric material, causing it to deform mechanically.

[0121] 4. An appropriate computational grid was constructed to analyze the simulation results, including stress distribution, deformation, and response characteristics of the piezoelectric material.

[0122] 5. The piezoelectric material layout is as follows Figure 7 As shown: There are 5 of them, which are arranged symmetrically on the vibration damping surface.

[0123] Example 8

[0124] This embodiment 8 provides a piezoelectric material oil tank vibration reduction layout solution based on simulation optimization, which is used for comparison with the above embodiments 3-7, and includes the following steps:

[0125] 1. Based on the actual size, shape, and operating environment of the fuel tank, a 3D finite element model of the fuel tank was created. The tank model was a 168x76x110.5mm rectangular parallelepiped. A 167.6x75.6x110.1mm module was also used to subtract the interior of the model. The overall tank model was a hollow box made of 0.4mm thick steel.

[0126] 2. The fuel tank material is set to Steel AISI 4340 from the COMSOL material library, with a density of 7.85g / cm 3 , Young's modulus is 205GPa, and Poisson's ratio is 0.28.

[0127] 3. In the solid mechanics parameter setting, first set Figure 2 The surface shown is set as a fixed constraint, while a fixed acceleration is applied to the opposite surface. The remaining surfaces are set as free boundaries. A voltage of 100 V is applied across the piezoelectric material, causing it to deform mechanically.

[0128] 4. An appropriate computational grid was constructed to analyze the simulation results, including stress distribution, deformation, and response characteristics of the piezoelectric material.

[0129] 5. The piezoelectric material layout is: the quantity is 0.

[0130] Example 9

[0131] This embodiment 9 is to simulate the displacement of the oil tank surface obtained in embodiments 3-7 and 8. Figure 8-13 The test software is COMSOL Multiphysics. The simulation results are shown in Table 1.

[0132] Table 1

[0133]

[0134]

[0135] Example 10

[0136] The stress simulation of the fuel tank surface obtained in Examples 3-7 and 8 is performed as follows Figure 14-19 The test software is COMSOL Multiphysics. The simulation results are shown in Table 2.

[0137] Table 2

[0138] Minimum stress of vibration damping surface (Pa) Example 3 (1 ceramic piece) <![CDATA[1.65×10 -26 ]]> Example 4 (2 ceramic pieces) <![CDATA[1.62×10 -26 ]]> Example 5 (3 ceramic pieces) <![CDATA[1.58×10 -26 ]]> Example 6 (4 ceramic pieces) <![CDATA[1.54×10 -26 ]]> Example 7 (5 ceramic pieces) <![CDATA[1.49×10 -26 ]]> Example 8 (no ceramic) <![CDATA[2.09×10 -26 ]]>

[0139] Example 11:

[0140] The present invention based on the same inventive concept also provides a piezoelectric material tank vibration reduction layout system based on simulation optimization, such as Figure 20 , applied to simulation platforms, including:

[0141] A setup module for setting simulation parameters for a pre-built 3D finite element tank model;

[0142] an analysis module, configured to perform simulation analysis on the surface of the three-dimensional finite element tank model based on multiple piezoelectric material layout schemes, and obtain a vibration suppression effect corresponding to each piezoelectric material layout scheme;

[0143] The determination module is used to perform a suppression effect analysis on the vibration suppression effect based on preset indicators, and determine a target piezoelectric material layout scheme based on the suppression effect analysis result.

[0144] Preferably, the construction method of the three-dimensional finite element tank model in the setting module includes:

[0145] A three-dimensional finite element tank model is constructed based on the acquired size, shape and working environment of the tank, and the tank shell structure, liquid dynamics and piezoelectric material of the three-dimensional finite element tank model are set.

[0146] Preferably, the piezoelectric material in the setting module includes: lead-based piezoelectric ceramics, non-lead-based piezoelectric ceramics or flexible piezoelectric composite materials.

[0147] Preferably, the simulation parameters in the setting module include one or more of the following: boundary conditions, load types or vibration modes.

[0148] Preferably, the preset indicators in the determination module include at least one or more of the following: stress, displacement or vibration frequency.

[0149] Preferably, the determination module determines the target piezoelectric material layout scheme based on the suppression effect analysis result, including:

[0150] Based on the suppression effect analysis results, the vibration suppression of each piezoelectric material layout scheme on the stress and displacement of the fuel tank at different vibration frequencies is determined, and the piezoelectric material layout scheme with the best vibration suppression effect is selected as the initial piezoelectric material layout scheme;

[0151] With the goal of maximizing the vibration reduction and suppression effect, the initial piezoelectric material layout scheme is optimized based on the simulation analysis results corresponding to the initial piezoelectric material layout scheme to obtain a target piezoelectric material layout scheme.

[0152] Preferably, the multiple piezoelectric material layout schemes in the analysis module include: uniform layout, centralized layout, and dispersed layout.

[0153] Example 12

[0154] like Figure 21 As shown, the present invention also provides an electronic device, which may be a computer, a single-chip microcomputer, a smart mobile device, or the like. The electronic device in this embodiment may include a processor, a memory, a transceiver component, and the like. The memory, processor, and transceiver component are connected via a bus; the memory may be used to store an execution program, which may include instructions; and the processor may be used to execute the instructions stored in the memory. The memory may also be used to store data, which may be accessed and / or modified during the execution of the instructions.

[0155] The processor may be a central processing unit (CPU), or it may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in the storage medium to implement the corresponding method flow or corresponding function, so as to realize the steps of a piezoelectric material oil tank vibration reduction layout method based on simulation optimization in the above embodiment.

[0156] Example 13

[0157] Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device readable storage medium (Memory), which is a memory device in the electronic device for storing programs and data. It can be understood that the storage medium here can include both the built-in storage medium in the electronic device and the extended storage medium supported by the electronic device. The storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space. These instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor loads and executes one or more instructions stored in the storage medium, which can implement the steps of a piezoelectric material tank vibration reduction layout method based on simulation optimization in the above embodiment.

[0158] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0159] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0160] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1The function specified in one or more boxes.

[0161] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0162] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A piezoelectric material tank vibration reduction layout method based on simulation optimization, characterized in that: Including performing the following operations based on the simulation platform: Set simulation parameters for a pre-built 3D finite element tank model; Performing simulation analysis on the surface of the three-dimensional finite element tank model based on multiple piezoelectric material layout schemes, and obtaining the vibration suppression effect corresponding to each piezoelectric material layout scheme; The vibration suppression effect is analyzed based on preset indicators, and a target piezoelectric material layout scheme is determined based on the suppression effect analysis results.

2. The method according to claim 1, characterized in that The method of constructing the three-dimensional finite element fuel tank model includes: A three-dimensional finite element tank model is constructed based on the acquired size, shape and working environment of the tank, and the tank shell structure, liquid dynamics and piezoelectric material of the three-dimensional finite element tank model are set.

3. The method according to claim 2, characterized in that The piezoelectric material includes: lead-based piezoelectric ceramics, non-lead-based piezoelectric ceramics or flexible piezoelectric composite materials.

4. The method according to claim 1, wherein The simulation parameters include one or more of the following: boundary conditions, load types, or vibration modes.

5. The method according to claim 1, wherein The preset indicators include at least one or more of the following: stress, displacement or vibration frequency.

6. The method according to claim 5, characterized in that The determining of the target piezoelectric material layout scheme based on the suppression effect analysis result includes: Based on the suppression effect analysis results, the vibration suppression of each piezoelectric material layout scheme on the stress and displacement of the fuel tank at different vibration frequencies is determined, and the piezoelectric material layout scheme with the best vibration suppression effect is selected as the initial piezoelectric material layout scheme; With the goal of maximizing the vibration reduction and suppression effect, the initial piezoelectric material layout scheme is optimized based on the simulation analysis results corresponding to the initial piezoelectric material layout scheme to obtain a target piezoelectric material layout scheme.

7. The method according to claim 1, characterized in that The multiple piezoelectric material layout schemes include: uniform layout, concentrated layout, and dispersed layout.

8. A piezoelectric material oil tank vibration reduction layout system based on simulation optimization, characterized in that: Applied to simulation platforms, including: A setup module for setting simulation parameters for a pre-built 3D finite element tank model; an analysis module, configured to perform simulation analysis on the surface of the three-dimensional finite element tank model based on multiple piezoelectric material layout schemes, and obtain a vibration suppression effect corresponding to each piezoelectric material layout scheme; The determination module is used to perform a suppression effect analysis on the vibration suppression effect based on preset indicators, and determine a target piezoelectric material layout scheme based on the suppression effect analysis result.

9. The system according to claim 8, characterized in that The construction method of the three-dimensional finite element tank model in the setting module includes: A three-dimensional finite element tank model is constructed based on the acquired size, shape and working environment of the tank, and the tank shell structure, liquid dynamics and piezoelectric material of the three-dimensional finite element tank model are set.

10. The system according to claim 9, characterized in that The piezoelectric material in the setting module includes: lead-based piezoelectric ceramics, non-lead-based piezoelectric ceramics or flexible piezoelectric composite materials.

11. The system according to claim 8, wherein: The simulation parameters in the setting module include one or more of the following: boundary conditions, load types or vibration modes.

12. The system according to claim 8, wherein: The preset indicators in the determination module include at least one or more of the following: stress, displacement or vibration frequency.

13. The system according to claim 12, wherein: The determination module determines a target piezoelectric material layout scheme based on the suppression effect analysis result, including: Based on the suppression effect analysis results, the vibration suppression of each piezoelectric material layout scheme on the stress and displacement of the fuel tank at different vibration frequencies is determined, and the piezoelectric material layout scheme with the best vibration suppression effect is selected as the initial piezoelectric material layout scheme; With the goal of maximizing the vibration reduction and suppression effect, the initial piezoelectric material layout scheme is optimized based on the simulation analysis results corresponding to the initial piezoelectric material layout scheme to obtain a target piezoelectric material layout scheme.

14. The system according to claim 8, wherein: The multiple piezoelectric material layout schemes in the analysis module include: uniform layout, centralized layout, and dispersed layout.

15. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, the piezoelectric material oil tank vibration reduction layout method based on simulation optimization as described in any one of claims 1 to 7 is implemented.

16. A readable storage medium, characterized in that An execution program is stored thereon, and when the execution program is executed, the piezoelectric material oil tank vibration reduction layout method based on simulation optimization as described in any one of claims 1 to 7 is implemented.

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