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Vol. 123, Issue 12, December 2010, pp.118-127



Design and Optimization of Revolute Flexure Joints for Compliant Parallel Mechanisms


1,2Qiaokang LIANG, 3Dan ZHANG, 1Quanjun SONG and 1Yunjian GE

1Institute of Intelligent Machines, Chinese Academy of Sciences

P.O. Box 1130, Hefei, Anhui, 230031, P. R. China

2University of Science and Technology of China

Hefei, Anhui 230026, P. R. China

3University of Ontario Institute of Technology

Oshawa, Ontario, L1H 7K4 Canada

Tel.: 905.721.8668 ext. 2965, fax: 905.721.3370

E-mail: Dan.Zhang@uoit.ca, Qiaokang.Liang@uoit.ca



Received: 29 July 2010   /Accepted: 21 December 2010   /Published: 28 December 2010


Abstract: Flexure joints are widely incorporated in a large number of precise applications such as micro-positioning stages and high-accuracy alignment instruments due to their monolithic character. As the main constituents of compliant mechanisms, the joint characters can influence the static and dynamic performances of the overall mechanism. This paper describes the Simulation-Driven Design and Optimization (SDDO) of the revolute flexure joint with high performance. By the implementation of the SDDO, the designed joint possesses high performance such as high precision of output motion, low energy consumption, large capacity of rotation, high stiffness, simultaneously. A prismatic flexure joint and a universal flexure joint constructed of designed joints are included to illustrate the analysis and design techniques. The presented design can be usefully used in other parallel compliant mechanisms and the SDDO method can also be used to develop industrial products.


Keywords: Flexure joint, Simulation-driven development, Optimization, parallel compliant mechanism.


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