Topology Optimization Methods for Design of the Outer Plate of Bicycle Chain

• Main Authors: Yi-MingChou, 周義閔
• Other Authors: Chih-Hsing Liu
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/31162761008534248061

碩士 === 國立成功大學 === 機械工程學系 === 104 === This study presents a new topology optimization method, Bi-directional Evolutionary Structural Optimization with Constant Volume (BESOCV) method, for design of continuum structures. The special characteristic of the BESOCV method is that the volume fraction remains the same throughout the optimization process. Three analysis cases are provided as the benchmark examples in this study. The objective function is to minimize the strain energy. The results show that BESOCV method can obtain similar results as the traditional BESO method but with better computational efficiency. Both BESO and BESOCV methods are used to design the outer plate of the bicycle chain. Three topology optimized designs of the outer plate are proposed and are analyzed by the finite element analysis. By comparing the total strain energy, maximum von Mises stress and the maximum displacement of the topology optimized designs with the traditional outer plate, the results show that the topology optimized designs are with better performance in overall. The optimal designs are prototyped by using aluminum material. The experimental results agree with the numerical simulations.