| 加强筋模型在轮胎有限元分析中的应用 |
| Application of rebar model in finite element analysis of tire |
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| DOI： |
| 中文关键词: 轮胎 非线性有限元分析 帘线-橡胶复合材料 加强筋模型 |
| 英文关键词: tire nonlinear finite element analysis rubber/cord composite rebar model |
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| 中文摘要: |
| 利用MSC.Marc软件建立子午线轮胎的三维非线性有限元模型。采用软件中的加强筋模型模拟轮胎中复杂的多层帘线-橡胶复合材料，直接在前处理中定义轮胎中随位置变化的帘线铺设方向，可以真实地模拟帘线-橡胶复合材料的几何和材料非线性，并且能够合理简化模型，提高计算效率和计算精度。模型中还考虑了橡胶材料的非线性和不可压缩性、轮胎大变形导致的几何非线性以及轮胎与轮辋和轮胎与路面的接触非线性边界条件。通过三维非线性有限元分析得到了在充气压力和静负荷作用下子午线轮胎的变形、内部应力分布及接地区压力分布。 |
| 英文摘要: |
| A 3D nonlinear finite element model of radial tire has been built by using MSC.Marc software.Using the rebar model provided by this software to simulate complex multilayer rubber/cord composites and directly define the cord directions varing with their positions in pretreatment，the geometric and material’s nonlinearities of rubber/cord composites can be really simulated，the built model can be resonably simplified and at the same time the calculation efficiency and precision can be improved.In this model，the nonlinearity and incompressibility of rubber material，the geometric nonlinearity of large deformations in tire，and the nonlinear boundary conditions in contact areas between tire and rim or ground are taken into account.The deformation and internal stress distribution of radial tire under inflation and static load，as well as the pressure distribution in contact area are obtained by 3D nonlinear finite element analysis. |
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