《机械工程前沿（英文）》
>> 2019年
第14卷
第2期
doi:
10.1007/s11465-019-0529-y
RESEARCH ARTICLE
Robust topology optimization of hinge-free compliant mechanisms with material uncertainties based on a non-probabilistic field model
State Key Laboratory of Structural Analysis for Industrial Equipment, School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, China
录用日期：
2019-01-25
发布日期：
2019-01-25
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摘要
This paper presents a new robust topology optimization framework for hinge-free compliant mechanisms with spatially varying material uncertainties, which are described using a non-probabilistic bounded field model. Bounded field uncertainties are efficiently represented by a reduced set of uncertain-but-bounded coefficients on the basis of the series expansion method. Robust topology optimization of compliant mechanisms is then defined to minimize the variation in output displacement under constraints of the mean displacement and predefined material volume. The nest optimization problem is solved using a gradient-based optimization algorithm. Numerical examples are presented to illustrate the effectiveness of the proposed method for circumventing hinges in topology optimization of compliant mechanisms.
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