| 摘要: |
| 针对高速齿轮组发热后啮合齿面变形的情况,采用高精度参数化建模,基于热弹耦合理论对齿面进行参数模拟重构,并进行有限元接触仿真.结合仿真结果,以齿轮组传动误差幅值最小为优化目标,同时考虑齿面热变形对轮齿修形量设计的影响,选择拓扑修形方案,进行有限元仿真和实验磨削.从齿轮传动误差、齿面接触斑点及齿轮振动三个方面来对比评价修形前后齿轮副的动态性能,论证有限元仿真和拓扑修形能够显著提升齿轮组的动态性能. |
| 关键词: 高精度 热弹耦合 传动误差 拓扑修形 动态性能 |
| DOI：10.20192/j.cnki.JSHNU(NS).2024.06.005 |
| 分类号:TP183 |
| 基金项目: |
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| Thermal elastic coupling analysis and dynamic performance optimization of high precision involute gear |
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SUN Hongyue, HUANG Yajing
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School of Information Technology and Intelligent Manufacturing, Shanghai Xingjian College, Shanghai 200040, China
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| Abstract: |
| For high-speed gears, the deformation of the meshing tooth surface after heating was studied. High-precision parameterized model was adopted and the tooth surface parameters based on thermal elastic coupling theory were reconstructed and finite element contact simulation was conducted. Based on the simulation results, the optimization objective was to minimize the transmission error amplitude of the gear set, for which a topology modification scheme was selected while considering the influence of tooth surface thermal deformation on the design of gear tooth modification quantity. Based on the modification plan, finite element simulation and experimental grinding were conducted simultaneously to compare and evaluate the dynamic performance of the gear pair from three aspects： gear transmission error, tooth surface contact spots, and gear vibration. The finite element simulation and topological modification was demonstrated that it could improve the dynamic performance of the gear set significantly. |
| Key words: high precision thermoelastic coupling transmission error topological shaping dynamic performance |
