混合输入五杆机构实现给定轨迹的功率分配  

Power distribution of a given trajectory generation for a hybrid-driven five-bar mechanism

作　　者：陈正洪[1] 张卧波[2] 王勇[1] 刘同辉 李艳[1] 

机构地区：[1]山东大学机械工程学院 [2]济南职业学院机械制造系,山东济南250014 [3]济南市区域供热公司,山东济南250011

出　　处：《山东大学学报（工学版）》2008年第1期9-12,共4页Journal of Shandong University（Engineering Science）

基　　金：国家自然科学基金项目(50775130);山东省自然科学基金资助项目(Y2002F13)

摘　　要：混合输入五杆机构是一种新型的可控机构,采用恒速电机和伺服电机作为驱动元,两种类型的运动通过一个五杆机构复合后,可得到柔性输出运动.通过对混合输入五杆机构的工作空间的研究,对该机构实现给定轨迹进行了逆运动学和动力学分析,得到了电动机功率计算的数学模型.为了实现对连续时变轨迹的跟踪任务,该系统采用PD控制算法对伺服电动机的运动进行控制.对混合输入五杆机构实现直线轨迹和抛物线轨迹进行了仿真研究,得出了机构在实现给定轨迹时电动机功率分配的规律.A hybrid-driving five-bar linkage mechanism is a new type of mechanism. The hybrid mechanism is a configuration combining the motions of two characteristically different electric motors by means of a five-bar mechanism to produce programmable output. Based on the study of the workspace of a hybrid-drive five-bar mechanism, the analysis of inverse kinematics and dynamics of the mechanism was developed, and a mathematical model of power calculation was obtained. In order to perform time-variety successive trajectory tracking, the PD control algorithm was applied to control the servo motor. The trajectory generation such as beeline and parabola was simulated with Matlab, and then the law of power distribution of trajectory generation was obtained.

关 键 词：混合驱动机构 轨迹实现 功率分配 

分 类 号：TH113[机械工程—机械设计及理论] TP241.2[自动化与计算机技术—检测技术与自动化装置]