基于有限元法的离合器壳体破裂成因分析

针对轻型车QX1060离合器壳体的结构特点,对其进行适当的简化,利用CATIA软件建立壳体的三维实体模型,借助ANSYS软件对其进行静力数值模拟。在有限元数值模拟过程中,利用刚性区加载方式模拟不同方向的弯曲载荷,通过比较各种工况有限元计算结果,确定出最危险的弯曲载荷方向和该弯曲载荷作用下的最大应力位置。在此基础上,研究离合器壳体分别在扭转载荷、弯扭组合载荷作用下的应力分布,研究结果表明,壳体最敏感的载荷为弯矩,应力分布最大的部位位于拱面边缘。

Cause Analysis of Cracking of Clutch Shell with FEM

In this paper,specific to the clutch shell of light truck QX1060’ structure,a 3-D parametric solid model has been established and simplified appropriately through CATIA V5,then,found out the sensitivity analysis under ANSYS programes.In the analysis process,which external load directions can be adjusted in the Rigid region,according to the calculation results,find out the the monment’ direction which identify High Risk Areas,and find out that where the lo-cation of maximum stress is under that monment.On this basis,made a moment and the combination of load torque and its various payloads under the stress clutch shell and the largest distribution stress the location,the results show that the Shell’ most sensitive rupture is bending moment,the area of maximum stress is located in the arch face edge.