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Proceedings Paper

Topology optimization design for micro compliant mechanism with two materials
Author(s): Li Ren; Rui Yang; Dahai Mi; Dongming Guo
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Paper Abstract

From the viewpoint of reducing the local stress, prolonging the working life and improving the total performance of the mechanism, the two-material topology optimization design for the micro compliant mechanism was investigated. Taking the mechanical advantage of the mechanism as the objective function, a mathematical model was constructed and solved using the Method of Moving Asymptotes (MMA). The Element Free Galerkin (EFG) method based on the moving least squares (MLS) approximation was used as a tool for numerical analysis and the material thickness at the gauss points in the integration cells was taken as design variables, which can improve the computing precision. Aiming at the problem of discontinuity of material distribution just as checkerboard in optimization results, a sensitivity filtering technique was used so that a clearer topology image can be obtained. The effectiveness of the mechanism was verified by a numerical example for design of a micro gripper mechanism.

Paper Details

Date Published: 2 May 2006
PDF: 6 pages
Proc. SPIE 6042, ICMIT 2005: Control Systems and Robotics, 60424A (2 May 2006); doi: 10.1117/12.664803
Show Author Affiliations
Li Ren, Dalian Univ. of Technology (China)
Rui Yang, Dalian Univ. of Technology (China)
Dahai Mi, Dalian Univ. of Technology (China)
Dongming Guo, Dalian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 6042:
ICMIT 2005: Control Systems and Robotics
Yunlong Wei; Kil To Chong; Takayuki Takahashi; Shengping Liu; Zushu Li; Zhongwei Jiang; Jin Young Choi, Editor(s)

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