双十字轴万向节运动与屈服强度仿真分析

Simulation of yield strength and motion of double-cross universal joint

为保证表面桨驱动装置能够安全可靠运行,采用UG软件对双十字轴万向节进行运动仿真,分析万向节各结构在运动过程中与球体是否存在干涉并计算最小间隙;采用有限元分析软件ABAQUS对双十字轴万向节进行屈服强度分析,并根据仿真结果对万向节设计优化提出建议。运动仿真结果表明:球体总旋转角为23.3°,满足万向节初始设计要求;万向节各结构运行过程中未发生干涉,最小间隙出现在双联叉与球体之间,为0.2 mm。屈服强度计算结果表明:整个双十字轴万向节的最大应力出现在十字轴的交叉处,为387.9 MPa,远小于材料屈服极限。

To ensure the safe and reliable operation of the surface propeller drive device,UG software is used to simulate the motion of the double-cross universal joint,analyze whether there is interference between the various structures of the universal joint and the sphere during the motion process,and calculate the minimum clearance.Finite element analysis software ABAQUS is used to conduct yield strength analysis on the double-cross universal joint.Suggestions for optimizing of the universal joint are proposed based on the simulation results.The motion simulation results show that the total rotation angle of the sphere is 23.3°,which meets the initial design requirements of the universal joint.There is no interference during the operation of the various structures of the universal joint,and the minimum clearance appeared between the double fork and the sphere,which is 0.2 mm.The calculation results of yield strength show that the maximum stress of the entire double-cross universal joint occurs at the intersection of the cross axis,which is 387.9 MPa,far lower than the yield strength limit of the material.