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

  • Authors:

  • Benliang Zhu;Xianmin Zhang;Sergej Fatikow

  • Affiliations:

  • Guangdong Province Key Laboratory of Precision Equipment and Manufacturing Technology, South China, University of Technology, Guangzhou, China 510640;Guangdong Province Key Laboratory of Precision Equipment and Manufacturing Technology, South China, University of Technology, Guangzhou, China 510640;Division Microrobotics Department of Computing Science, University of Oldenburg, Oldenburg, Germany 26111

  • Venue:
  • Structural and Multidisciplinary Optimization
  • Year:
  • 2014

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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.