GA-Based Modeling for a Parallel-Link Coordinate Measuring Machine

Author

Liu, Dejun ; Chen, Xiaohui ; Ai, Qinghui ; Zou, Mingming

Author_Institution

Fac. of Mech. & Electron. Eng., China Univ. of Pet., Beijing

Volume

2

fYear

2008

fDate

18-20 Oct. 2008

Firstpage

384

Lastpage

388

Abstract

Measurement model of parallel-link CMM is equated with the solution of forward kinematic. Forward kinematic is high-order nonlinearity multi-solution problem. It is very difficult to find the solution of forward kinematic for a parallel mechanism. This paper introduces a GA-based modeling method for 6-SPS type parallel-link CMM. Firstly, the inverse kinematics mathematic model of parallel-link CMM is established in this paper. Then the solution of forward kinematics is obtained by improving the fundamental genetic algorithm, which overcomes the shortcoming of analytical method and numerical method, and receives very good effect. This solution simplifies forward kinematics, and provides an essential theoretical basis for development the parallel-link CMM.

Keywords

genetic algorithms; mathematical analysis; parallel machines; GA-based modeling; forward kinematic solution; high-order nonlinearity multisolution problem; parallel-link coordinate measuring machine; Arm; Computational modeling; Concurrent computing; Coordinate measuring machines; Electronic mail; Genetic algorithms; Kinematics; Length measurement; Magnetic heads; Petroleum;

fLanguage

English

Publisher

ieee

Conference_Titel

Natural Computation, 2008. ICNC '08. Fourth International Conference on

Conference_Location

Jinan

Print_ISBN

978-0-7695-3304-9

Type

conf

DOI

10.1109/ICNC.2008.86

Filename

4667022