Reliability Based Optimization of Structural Systems

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

The optimization problem to design structural systems such that the reliability is satisfactory during the whole lifetime of the structure is considered in this paper. Some of the quantities modelling the loads and the strength of the structure are modelled as random variables. The reliability is estimated using first. order reliability methods ( FORM ). The design problem is formulated as the optimization problem to minimize a given cost function such that the reliability of the single elements satisfies given requirements or such that the systems reliability satisfies a given requirement. For these optimization problems it is described how a sensitivity analysis can be performed. Next, new optimization procedures to solve the optimization problems are presented. Two of these procedures solve the system reliability based optimization problem sequentially using quasi-analytical derivatives. Finally an example demonstrates the effectiveness of the procedures.
Original languageEnglish
Title of host publicationSystem Modelling and Optimization : Proceedings of the 13th IFIP conference
EditorsMasao Iri, Keiji Yajima
Number of pages15
PublisherSpringer
Publication date1987
ISBN (Print)978-3-540-19238-1
Publication statusPublished - 1987
Event13th IFIP Conference on System Modelling and Optimization - Tokyo, Japan
Duration: 31 Aug 19874 Sept 1987
Conference number: 13

Conference

Conference13th IFIP Conference on System Modelling and Optimization
Number13
Country/TerritoryJapan
CityTokyo
Period31/08/198704/09/1987
SeriesLecture Notes in Control and Information Sciences
Volume113
ISSN0170-8643

Keywords

  • Reliability-Based Optimization
  • Structural Systems
  • First order Reliability Method (FORM)

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