六缸压缩机曲轴系动力学仿真和疲劳强度分析

Dynamic and Fatigue Strength Analysis of Crankshaft of Six Cylinders Compressor

针对压缩机曲轴系统中的连杆、活塞的速度、加速度及受力计算问题,运用Pro/E和ADAMS软件构建压缩机曲轴系统的刚柔耦合动力学模型,利用ANSYS软件对压缩机曲轴系统进行模态计算,利用ADAMS虚拟样机技术对压缩机曲轴系统进行运动学和动力学仿真,并以此对压缩机曲轴进行疲劳强度校核,为曲轴系统优化设计提供新的设计思路。

With regard to the speed,acceleration and force calculation of a compressor crankshaft,connecting rods and pistons,this paper builds the rigid-flexible coupling dynamic model of the compressor crankshaft by Pro / E and ADAMS software,carries out its modal calculation by Ansys,simulates the kinematics and dynamics of this system by ADAMS virtual prototyping technology and then acquires its fatigue strength.This provides a new design idea for the crankshaft optimal design.