Journal article
Continuum topology optimization for monolithic compliant mechanisms of micro-actuators
Acta mechanica solida Sinica, Vol.19(1), pp.58-68
2006
DOI: 10.1007/s10338-006-0607-7
Abstract
A multi-objective scheme for structural topology optimization of distributed compliant mechanisms of micro-actuators in MEMS condition is presented in this work, in which mechanical flexibility and structural stiffness are both considered as objective functions. The compliant micro-mechanism developed in this way can not only provide sufficient output work but also have sufficient rigidity to resist reaction forces and maintain its shape when holding the work-piece. A density filtering approach is also proposed to eliminate numerical instabilities such as checkerboards, mesh-dependency and one-node connected hinges occurring in resulting mechanisms. SIMP is used as the interpolation scheme to indicate the dependence of material modulus on element-regularized densities. The sequential convex programming method, such as the method of moving asymptotes (MMA), is used to solve the optimization problem. The validation of the presented methodologies is demonstrated by a typical numerical example.
Details
- Title: Subtitle
- Continuum topology optimization for monolithic compliant mechanisms of micro-actuators
- Creators
- Luo Zhen - Huazhong University of Science and TechnologyDu Yixian - Huazhong University of Science and TechnologyChen Liping - Huazhong University of Science and TechnologyYang Jingzhou - University of IowaKarim Abdel-Malek - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Acta mechanica solida Sinica, Vol.19(1), pp.58-68
- Publisher
- Elsevier Ltd
- DOI
- 10.1007/s10338-006-0607-7
- ISSN
- 0894-9166
- eISSN
- 1860-2134
- Language
- English
- Date published
- 2006
- Academic Unit
- Mechanical Engineering; Roy J. Carver Department of Biomedical Engineering
- Record Identifier
- 9984196631102771
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