NDLI: Topology optimization design for two- material micro compliant mechanism with stress constraint

Content Provider	IEEE Xplore Digital Library
Author	Li Ren Rui Yang Wenxiao Zhang
Copyright Year	2011
Description	Author affiliation: School of Mechanical Engineering, Dalian University of Technology, China (Rui Yang) \|\| School of Mechanical Engineering, Dalian Ocean University, China (Li Ren; Wenxiao Zhang)
Abstract	In this paper, the topology optimization design of two-material micro compliant mechanism that allows for treating local stress constraint is investigated. A mathematical model is constructed in which the mechanical advantage of the mechanism is posed as objective function while displacement constraint, material constraint and stress constraint are considered simultaneously. The element free Galerkin (EFG) method based on the moving least squares (MLS) approximation is used as a tool for numerical analysis and the thickness of each material phase at the gauss point in the integration cells is taken as design variable, which well describes the local characteristic of the mechanism and improves the computing precision. The topological design of compliant mechanism is then solved as a problem of material distribution using SIMP model with sensitivity filtering technique. The solution of this problem is obtained by using the method of moving asymptotes (MMA). The effectiveness of the mechanism is verified by a numerical example for design of a micro gripper mechanism.
Starting Page	1843
Ending Page	1846
File Size	223590
Page Count	4
File Format	PDF
ISBN	9781424494361
e-ISBN	9781424494392
DOI	10.1109/MACE.2011.5987321
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Compliant mechanism Sensitivity Stress constraints Element free Galerkin (EFG) method Materials Topology optimization Topology Finite element methods Moment methods Optimization Stress
Content Type	Text
Resource Type	Article

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