针对一种新型六自由度并联机器人进行了运动学和动力学分析,并借助于MatLab的SimMechanics模块的系统动态建模功能,以六自由度并联机器人仿真模型为对象,设计了PID控制器形成闭环控制,最后构成一个仿真平台。结果表明:在平台上可以进行运动学、动力学、控制方法的研究。同时仿真平台由各模块组成,可以灵活改变各模块的参数和结构,并且避开了Stewart平台的复杂的建模过程,对所有并联机构的研究都有借鉴作用。
At first the kinematics and dynamics of a novel parallel manipulator with six degrees of freedom were analyzed in this paper,then a PID controller was designed with the model of 6-PSS parallel manipulator as control object to form close loop,finally a simulation platform was built by modeling dynamically adopting SimMechanics module in MatLab.Results show that the platform can be used to study the kinematics,dynamics and control methods.At the same time the simulation platform may supply a reference to all Stewart parallel robots,because it consists of modules whose parameters and structures of modules can be modified easily,and it can avoid modeling complexity for Stewart platform.