对置式凸轮发动机运动学与动力学研究

研究了对置式凸轮发动机的运动学与动力学特性,利用向量与坐标变换法分析了对置式凸轮发动机的工作曲面方程和滚轮相对滑动速度等运动学性能,分析了活塞、气以及主轴等部件的动力学特性。研究结果表明,虽然对置后发动机轴向长度有所增加,但主轴轴向力能完全平衡,主轴产生转矩大,轴承负荷小,可提高功率。从发动机力学性能特点及运动学与动力学角度分析表明,采用对置式发动机方案是完全可行的。

Kinematics and Dynamics of Contrapositive Cam Engine

Vector and coordinate transformation are used to analyse the work surface equation and the slip velocity between the cam and idler wheels, also the dynamic characteristics of pistons, cylinders and principal axis of the contrapositive cam engine. Compared with dissymmetrical engines, the results show that the contrapositive cam engine can balance the axial force with larger torque output and lower loads on shafting bearings. The kinematic and dynamic analysis indicates the scheme of coutrapositive can engines is completely feasible.