| 摘要: |
| 目的 基于现有的橡胶减振器，运用ABAQUS软件建立橡胶减振器的有限元模型，仿真模拟橡胶减振器的工作过程，并在现有结构基础上对其结构进行优化，解决其表面出现裂纹的问题。方法 首先对现有结构进行仿真分析，找到其应力集中部位。其次，开展材料选型研究，设计具有高强度、抗疲劳且易黏合的橡胶配方。再次，运用橡胶减振器的有限元模型，在不改变刚度特性的前提下进行结构优化设计。最后，通过样品的疲劳试验，对比验证新研制减振器的可行性。结果 改进后的减振器在200万次疲劳试验后的动刚度衰减不到3%，展现出更好的疲劳老化性能。结论 通过有限元分析与试验相结合的方式，对某型号橡胶减振器裂纹缺陷的原因进行了分析，解决了该工艺改进难题，可为同类型减振器设计提供重要技术指导。 |
| 关键词: 橡胶减振器 ABAQUS 有限元分析 结构优化、应力 |
| DOI：10.19554/j.cnki.1001-3563.2024.21.003 |
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| 基金项目: |
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| Optimization of Rubber Shock Absorber Based on ABAQUS Software for New Fuel Transport Container |
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LI Qipeng, WU Tao, XU Junxiang
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(China Nuclear Power Research Institute, Guangdong Shenzhen 518031, China)
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| Abstract: |
| The work aims to establish afinite element model for rubber shock absorbers by ABAQUS based on exiting rubber shock absorbers, so as to simulate the working process of rubber shock absorbers, conduct optimization based on the current structure and solve the cracks in the structural surface. Firstly, the current structure was simulated to obtain the stress concentration area. Secondly, a material selection research was conducted to design rubber formulations with high strength, fatigue resistance and easy bonding. Thirdly, the finite element model of rubber shock absorbers was used to optimize the structure without changing the stiffness characteristics. Finally, through fatigue testing of samples, the feasibility of the newly developed shock absorber was compared and verified. After testing, the new shock absorber showed a dynamic stiffness attenuation of less than 3% after 2 million fatigue cycles, indicating better fatigue aging characteristics. Through the combination of finite element analysis and test, the cause of crack defect of a certain type of rubber shock absorbers is analyzed, and the problem of process improvement is solved. This article can provide important technical guidance for the design of similar shock absorbers. |
| Key words: rubber shock absorber ABAQUS finite element analysis structural optimization stress |
