AN INTEGRATED DESIGN OF FLEXURE HINGES AND TOPOLOGY OPTIMIZATION FOR MONOLITHIC COMPLIANT MECHANISM

Article type: Research Article

Authors: Shih, Chien-Jong | Lin, Chih-Feng | Chen, Hsin-Yi

Affiliations: Department of Mechanical and Electro-Mechanical Engineering, Tamkang University, Tamsui, Taiwan

Abstract: When considering the engineering design process, structures resembling hinges are typically encountered in final structural topology optimization. Although the topology optimization can generate the most desired outcome for layout and approximate hinges alike, their manufacturability from a practical standpoint is in question. This paper proposes an multi-objective optimum design synthesis, using the analytic single-axis flexure formulation integrated with the formal optimization, as a post design process to obtain optimum flexural specifications with locations for promoting the overall performance of a monolithic compliant structure generated by topology optimization. The result verifies that the optimum location of hinge-like structures have been produced at the end of topology optimization. Consequently, a simple alternative design process is recommended for the integration of mechanical flexure hinges into the final product.

Keywords: topology optimization, engineering design, multidisciplinary optimization, compliant mechanism, flexure hinge

Journal: Journal of Integrated Design & Process Science, vol. 10, no. 3, pp. 1-16, 2006