定轴转动凸轮机构多体系统运动分析

99 8 13 Dynamic analysis of multibody system on cam mechanism rotating about a fixed axle

本文用多体系统动力学理论研究定轴转动凸轮机构的运动规律，将作平动运动的主动构件和作定轴转动的从动构件简化为一定轴转动凸轮机构，寻求从动构件轮廓曲线为不同形状时主动构件和从动构件之间的运动关系式，建立起具有约束系统的定轴转动凸轮机构运动学和动力学运动方程的统一形式。

By the use of dynamics theory of multibody system this paper studied the motion laws of cam mechanism rotating about a fixed axle.The driving component moving in a plane and the driven component revolving around a fixed axle have been simplified into a cam mechanism rotating about a fixed axle.The motion relationship between driving and driven components while the contour of driven component has got different shapes have been explored. The unified forms of motion equations of kinematics and dynamics for cam mechanism rotating about a fixed axle and possessing constraint system has been established.The correctness of the method of this paper is verificed by the use of classical analytic theory of mechanism movement.