A Subset Simulation algorithm for structural optimization

Hong Shuang Li, Siu Kui Au

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Subset Simulation algorithm is proposed for deterministic structural design optimization under general multiple constraints. The proposed algorithm is based on the idea that an extreme event (optimization problem) can be considered as a rare event (reliability problem). It is population-based realized with Markov Chain Monte Carlo and a simple evolutionary strategy. Problem-specific constraints are handled by a feasibility-based fitness function that reflects their degree of violation. Based on the constraint fitness function, a double-criterion sorting algorithm is used to guarantee that any feasible solutions are given a higher priority over the infeasible ones before their objective function values are ranked. The efficiency and robustness of the proposed algorithm are illustrated using a benchmark optimization design problems. Comparison is made with other well-known stochastic optimization algorithms, such as Genetic Algorithm, Particle Swarm Optimization and Harmony Search.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011
EditorsG. Lombaert, G. Muller, G. De Roeck, G. Degrande
PublisherUniversity of Southampton, Institute of Sound Vibration and Research
Pages2927-2932
Number of pages6
ISBN (Electronic)9789076019314
Publication statusPublished - 2011
Externally publishedYes
Event8th International Conference on Structural Dynamics, EURODYN 2011 - Leuven, Belgium
Duration: Jul 4 2011Jul 6 2011

Publication series

NameProceedings of the 8th International Conference on Structural Dynamics, EURODYN 2011

Conference

Conference8th International Conference on Structural Dynamics, EURODYN 2011
Country/TerritoryBelgium
CityLeuven
Period7/4/117/6/11

ASJC Scopus Subject Areas

  • Hardware and Architecture
  • Computer Networks and Communications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Keywords

  • Constraint handling
  • Design optimization
  • Feasibility-based rule
  • Subset Simulation

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