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STRUCTURAL OPTIMIZATION USING LINEAR APPROXIMATION METHOD

Nguyen Tam Hung 1
Volume & Issue: Vol. 7 No. 4&5 (2004) | Page No.: 128-140 | DOI: 10.32508/stdj.v7i4&5.3206
Published: 2004-05-31

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Copyright The Author(s) 2023. This article is published with open access by Vietnam National University, Ho Chi Minh city, Vietnam. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0) which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. 

Abstract

In this report, the mathematical programming method is described, which is capable of solving a broad class of structural optimization problem. The method employs reciprocal design variables in order to get first-order approximations to the object function and to the constrains. By this approach, the primary problem is replaced with a sequences of explicit subproblems. Each subproblem which is convex and separable could be efficiently solved by using a dual formulation. Within this report, the method is applied on sizing optimization of trusses for a fixed, geometry and it is generalized to the case where the geometry is not fixed.

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