变速器壳体强度的有限元计算分析

Discussion on Finite Element Calculation and Transmission Shell Strength

结合有限元的结构建模,对变速器壳体强度进行了分析,对网格的划分设计、单元内容的设置以及选材的设计、工况的定义设计、受力分析与工况明确等方面进行了有限元计算分析。研究发现:变速器轴承孔所产生的压力会直接造成变形,继而形成更为直观的反应,这样的反应会在齿轮啮合力中产生直接影响,也就会让壳体本身的受力分析与壳体的强度设计作出适当的调整;当汽车的1挡与倒挡处于静止状态下的扭工时,变速器的壳体强度会随之降低,而轴承孔附近会更为薄弱。

Based on the structural modeling of finite element, we analyze the strength of the transmission shell.According to the design of the grid, the setting of the unit and the design of the selection, the definition of the working condition, the stress analysis and the clear conditions And other aspects of the finite element analysis and analysis.Study, we found that the pressure generated by the transmission bearing bore will be directly caused by deformation and then form a more intuitive response, such a reaction will have a direct impact on the gear meshing force, it will make the shell itself force analysis and shell The strength of the body is designed to make the appropriate adjustments.When the car gear and reverse gear in the static state of the twist, the transmission of the shell strength will be reduced, while the bearing hole near the more weak.