| 橡胶衬套的动静刚度参数优化研究 |
| Optimization of Dynamic and Static Stiffness Parameters of Rubber Bushing |
| 投稿时间：2024-04-06 修订日期：2024-04-06 |
| DOI：10.12136/j.issn.1000-890X.2025.10.0771 |
| 中文关键词: 橡胶衬套 静刚度 动刚度 超弹性 粘弹性 本构参数 参数优化 |
| 英文关键词: rubber bushing static stiffness dynamic stiffness hyperelastic viscoelastic constitutive parameter parameter optimization |
| 基金项目:宁波市重点研发计划项目(20232ZDYF020091) 基于数字驱动的的汽车设计和仿真软件开发与集成 |
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| 中文摘要: |
| 为了解决橡胶衬套的静刚度和动刚度仿真值与试验值存在偏差的问题，并预测较难通过试验获得的橡胶衬套的扭转（轴向）和偏摆动刚度，对橡胶材料的超弹性本构参数进行优化，反推出能够准确模拟4个方向静刚度的超弹性本构参数，以此为基础建立超弹性-粘弹性联合模型，以径向和轴向动刚度为目标优化粘弹性本构参数，以准确模拟橡胶衬套的静动态特性，进而求出试验较难获得的扭转和偏摆动刚度。 |
| 英文摘要: |
| In order to solve the problem of the deviation between the calculation and the test of the static and dynamic stiffness of the rubber bushing and predict the deflection and torsional stiffness of the rubber bushing which is difficult to be completed by the test; The hyperelastic constitutive parameters were optimized, and the constitutive parameters that could accurately simulate the four-directional static stiffness were derived. On this basis, the combined hyperelastic and viscoelastic parameter model was established. The viscoelastic constitutive parameters were optimized with radial and axial dynamic stiffness as the targets, and then the torsion and skew stiffness curves were obtained. The optimized static and static stiffness parameters can accurately simulate the static and dynamic characteristics of the rubber bushing, thus saving the test cost.In order to solve the problem of the deviation between the simulation and testing values of the static and dynamic stiffnesses of the rubber bushing and predict the torsional（axial） and swing dynamic stiffnesses of the rubber bushing which were difficult to be obtained by testing，the hyperelastic constitutive parameters of the rubber materials were optimized，and the hyperelastic constitutive parameters that could accurately simulate the four-directional static stiffnesses were derived.On this basis，the hyperelastic-viscoelastic parameter combined model was established.The viscoelastic constitutive parameters were optimized with radial and axial dynamic stiffnesses as the targets to accurately simulate the static and dynamic characteristics of the rubber bushing，and then the torsional and swing stiffnesses were obtained. |
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