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A multi-objective method of hinge-free compliant mechanism optimization

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Abstract

A new multi-objective formulation for topology synthesis of hinge-free compliant mechanisms is presented based on the SIMP method. A weighted sum formed objective function is developed by taking into consideration the input and output mean compliances. The weighting factors are set based on the information that is obtained from the previous iteration and automatically updated with each optimization iteration step. Shape sensitivity analysis is addressed. Some numerical examples are presented to illustrate the validity of the proposed method.

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Acknowledgments

This research was supported by the National Science Foundation of China (Grant No. 91223201, 50825504), the United Fund of Natural Science Foundation of China and Guangdong province (Grant No. U0934004), Project GDUPS (2010), and the Fundamental Research Funds for the Central Universities (2012ZP0004). This support is greatly acknowledged.

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Authors and Affiliations

  1. Guangdong Province Key Laboratory of Precision Equipment and Manufacturing Technology, South China, University of Technology, Guangzhou, Guangdong, 510640, China

    Benliang Zhu & Xianmin Zhang

  2. Division Microrobotics Department of Computing Science, University of Oldenburg, Uhlhornsweg 84, A1, 26111, Oldenburg, Germany

    Sergej Fatikow

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  1. Benliang Zhu
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  2. Xianmin Zhang
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  3. Sergej Fatikow
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Correspondence to Xianmin Zhang.

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Zhu, B., Zhang, X. & Fatikow, S. A multi-objective method of hinge-free compliant mechanism optimization. Struct Multidisc Optim 49, 431–440 (2014). https://doi.org/10.1007/s00158-013-1003-9

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  • DOI: https://doi.org/10.1007/s00158-013-1003-9

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