Kinematic performance and accuracy analysis of new type 3-DOF parallel mechanism

被引:0
作者
Huang P. [1 ]
Wang L. [1 ]
Guan L. [1 ]
Yao R. [1 ]
机构
[1] Department of Precision Instruments and Mechanology, Tsinghua University
来源
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2010年 / 46卷 / 15期
关键词
3-DOF parallel mechanism; Accuracy analysis; Kinematics;
D O I
10.3901/JME.2010.15.001
中图分类号
学科分类号
摘要
Hybrid series-parallel mechanism, which contains the advantages of both series and parallel mechanisms, is used more and more widely in the manufacturing equipment for parts with complex free curved face. A 3-DOF parallel 3-PSP mechanism, which can realize one translational and two rotational motions, is proposed. The 3-PSP mechanism has accompanying motions. According to the analysis of motion mode, tilt-torsion angle for describing the motion of moving platform is adopted instead of traditional Euler angle, and based on that, kinematic model is built to solve the complete kinematic problem including accompanying motions and passive joint variables. Furthermore, the range of the joint, velocity characteristic, and accuracy characteristic are analyzed to demonstrate that the 3-PSP mechanism is fully suitable for parallel module in hybrid series-parallel frame which can fulfill the requirement of the complex parts in aerial, space, and automotive fields. © 2010 Journal of Mechanical Engineering.
引用
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页码:1 / 7
页数:6
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