基于ANSYS的离合器压盘热变形与模态优化分析

Temperature Field and Modal Optimization Analysis of Clutch Pressure Plate Based on ANSYS

离合器是车辆传动系统中一个重要的组成部分,而压盘是离合器中的关键零件。本文首先针对离合器接合过程中,压盘受到摩擦片持续摩擦作用下发生的产生的热变形问题,利用ANSYS仿真软件建立了离合器压盘的三维模型,并采用热结构耦合分析,得到了温度场数值模拟结果,同时研究了压盘厚度对压盘热变形的影响。结果表明:加大压盘厚度能够改善压盘的热传导,从而减小热变形。因此本文通过压盘质量分布的改进,改善了压盘表面的热变形,使最大变形量下降了6.7%。其次考虑到压盘的实际工况,通过模态分析进一步研究了其振动性能,并通过结构优化,使其具有更稳定的动态性能。本文的研究对提高压盘使用寿命、改善其工作性能等方面具有可行性和有效性。

The clutch is an important component of a vehicle’s transmission system,and the pressure plate is one key part in the clutch.In this paper,in view of the thermal deformation of the pressure plate under the continuous friction of the friction plate during the clutch engagement,the three-dimensional model of the clutch pressure plate was established by ANSYS simulation software,and the numerical simulation results of the temperature field were obtained through using thermal structure coupling analysis,and the influence of the thickness on the thermal deformation of the pressure plate was studied.The results show that increasing the thickness of the platen can improve the heat conduction of the platen and reduce the thermal deformation.Therefore,the thermal deformation of the pressure plate surface is improved through changing the mass distribution of the platen,and the maximum deformation is reduced by 6.7%.Secondly,considering the actual working condition of the pressure plate,the vibration performance of the pressure plate is further studied through modal analysis,and the dynamic performance is more stable through structural optimization.The research in this paper is feasible and effective in improving the service life and working performance of the pressure platen.