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Author:

Yi, G.-L. (Yi, G.-L..) | Sui, Y.-K. (Sui, Y.-K..)

Indexed by:

Scopus PKU CSCD

Abstract:

The constraint optimization aims to find optimum points that satisfy equality or inequality constraints. In some cases, one or several constraints at the "optimum points", which are obtained through solving the optimization problems, might be violated, or the maximum value among all of the constraints might be much less than the target constraint bound. In terms of these issues, this paper provided an adaptive constraint bounds adjustment approach, which was implemented in each iteration while seeking optimality. The constraint bounds of the iterative model were adjusted dynamically, and the constraint that had the maximum value among all constraints, was turned into an equality constraint. Therefore, the iterative solutions were always in feasible ranges, and no constraints were violated at the converged solution. This approach was implemented successfully on structural topology optimization of minimum weight with displacement constraints. The cases of the constraints unsatisfied before using the proposed approach were satisfied after using it and the constraint violation issues were addressed.

Keyword:

An adaptive constraint bounds adjustment approach; Constraint optimization; Inactive constraints; Structural topology optimization; Violated constraints

Author Community:

  • [ 1 ] [Yi, G.-L.]School of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Sui, Y.-K.]School of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

Reprint Author's Address:

  • [Sui, Y.-K.]School of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

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Source :

Chinese Journal of Computational Mechanics

ISSN: 1007-4708

Year: 2014

Issue: 3

Volume: 31

Page: 303-309

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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