Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Damage detection of truss structures by hybrid immune system and teaching–learning-based optimization
Abstract One of the challenging tasks in structural optimization is locating and evaluating partial damages that have occurred in a system of finite elements. It may be assessed by an inverse problem of assuming stiffness degradation in some elements and comparing the resulting frequencies with those of true/measured values on the damaged structure. The present study formulates this problem as an optimization task and concentrates on teaching–learning-based optimization for its solution. The algorithm is further improved with some concepts of Artificial Immune System to provide better search refinement. Performance of the proposed hybrid method is then evaluated through numerical tests on a number of truss structures as literature benchmarks. The results exhibit superior damage detection capability by the proposed framework, when the vaccination and receptor editing operators are applied within the base algorithm.
Damage detection of truss structures by hybrid immune system and teaching–learning-based optimization
Abstract One of the challenging tasks in structural optimization is locating and evaluating partial damages that have occurred in a system of finite elements. It may be assessed by an inverse problem of assuming stiffness degradation in some elements and comparing the resulting frequencies with those of true/measured values on the damaged structure. The present study formulates this problem as an optimization task and concentrates on teaching–learning-based optimization for its solution. The algorithm is further improved with some concepts of Artificial Immune System to provide better search refinement. Performance of the proposed hybrid method is then evaluated through numerical tests on a number of truss structures as literature benchmarks. The results exhibit superior damage detection capability by the proposed framework, when the vaccination and receptor editing operators are applied within the base algorithm.
Damage detection of truss structures by hybrid immune system and teaching–learning-based optimization
Shahrouzi, Mohsen (Autor:in) / Sabzi, Amir-Hossein (Autor:in)
Asian Journal of Civil Engineering ; 19 ; 811-825
21.07.2018
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A teaching learning based optimization for truss structures with frequency constraints
| British Library Online Contents | 2015