Study on kinematic characteristics and singularities of a 3-DOF parallel robot

Author

Cheng, Xiang ; Huang, Y.M. ; Gao, F. ; Zhang, Y.G. ; Peng, Z.B.

Author_Institution

Sch. of Mech. & Instrum. Eng., Xi´´an Univ. of Technol., China

Volume

5

fYear

2004

fDate

26-29 Aug. 2004

Firstpage

2870

Abstract

Kinematic characteristics of a 3-DOF parallel robot 3-PRS are studied through a new method and its particular style of the three DOFs and relationships between the three DOFs and the other three DOFs are obtained through analysis of mechanism constrains. Square Jacobian matrix of the parallel robot is got by the velocity polygon vector function method and differential relations of the motion platform axes. Then the singularity of the 3-PRS parallel robot is analyzed by the Jacobian matrix and tested by the vector relationships between the motion platform and the rod. Finally, specific method is given out to avoid singularities.

Keywords

Jacobian matrices; motion control; robot kinematics; vectors; 3 DOF parallel robot; 3 PRS parallel robot; motion platform axes; robot kinematics; square Jacobian matrix; velocity polygon vector function method; Electronic mail; Instruments; Jacobian matrices; Kinematics; Mechanical factors; Motion analysis; Motion estimation; Parallel robots; Robotic assembly; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics, 2004. Proceedings of 2004 International Conference on

Print_ISBN

0-7803-8403-2

Type

conf

DOI

10.1109/ICMLC.2004.1378521

Filename

1378521