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Suppressing Gray-Scale Elements in Topology Optimization of Continua Using Modified Optimality Criterion Methods

Yixian Du1,2, De Chen1,3

College of Mechanical & Material Engineering, China Three Gorges University, Yichang, 443002, China
Corresponding Author. Tel: +86-717-63975560; Fax: +86-717-6397559. E-mail address: duyixian2005@yahoo.com.cn
Hubei Key Laboratory of Hydroelectric Machinery Design & Maintenance, Yichang, 443002, China

Computer Modeling in Engineering & Sciences 2012, 86(1), 53-70. https://doi.org/10.3970/cmes.2012.086.053

Abstract

This study proposes a new topology optimization method for continuum structures, which includes modified heuristic optimality criteria in conjunction with the SIMP scheme to suppress gray-scale elements occurred in topology optimization of continua through smoothed Heaviside function. In the process of numerical implementation, the gray scale elements are suppressed to approach the binary bounds of 0 or 1 by utilizing the proposed approach and the corresponding convergence criterion. Two typical numerical examples are used to demonstrate the effectiveness of the proposed method in suppressing the gray-scale elements with intermediate densities, as well as the efficiency of this method in the numerical procedure.

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APA Style
Du, Y., Chen, D. (2012). Suppressing gray-scale elements in topology optimization of continua using modified optimality criterion methods. Computer Modeling in Engineering & Sciences, 86(1), 53-70. https://doi.org/10.3970/cmes.2012.086.053
Vancouver Style
Du Y, Chen D. Suppressing gray-scale elements in topology optimization of continua using modified optimality criterion methods. Comput Model Eng Sci. 2012;86(1):53-70 https://doi.org/10.3970/cmes.2012.086.053
IEEE Style
Y. Du and D. Chen, "Suppressing Gray-Scale Elements in Topology Optimization of Continua Using Modified Optimality Criterion Methods," Comput. Model. Eng. Sci., vol. 86, no. 1, pp. 53-70. 2012. https://doi.org/10.3970/cmes.2012.086.053



cc Copyright © 2012 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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