A STUDY ON THE DYNAMIC CHARACTERISTICS OF THE 2-DOF REDUNDANT PARALLEL MANIPULATOR OF A HYBRID MACHINE TOOL

被引:8
|
作者
Wang, Liping [1 ]
Wu, Jun [1 ]
Li, Tiemin [1 ]
Wang, Jinsong [1 ]
Gao, Guoqin [2 ]
机构
[1] Tsinghua Univ, Dept Mech Engn, Inst Mfg Engn, Beijing 100084, Peoples R China
[2] Jiangsu Univ, Sch Elect & Informat Engn, Zhenjiang, Peoples R China
来源
基金
中国国家自然科学基金;
关键词
Dynamic characteristics; redundant parallel manipulator; natural frequency; displacement response; VIBRATION CONTROL; MODEL; FORCES;
D O I
10.2316/Journal.206.2015.2.206-4257
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper deals with the dynamic characteristics of the 2 degree-offreedom (2-DOF) redundant parallel manipulator of a 5-DOF hybrid machine tool. The stiffness matrix of the parallel manipulator is derived by considering the revolute pair stiffness. Taking the damp and dynamic cutting force into account, the analytic dynamic model is derived. The third-order natural frequencies and displacement response of the redundant parallel manipulator are compared with those of its non-redundant counterpart. The simulations show that the redundant parallel manipulator has higher natural frequency and smaller displacement response than its non-redundant counterpart.
引用
收藏
页码:184 / 191
页数:8
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