Configuration design of structures using discrete optimization approach

Patrick Y. Shim, Souran Manoochehri

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Tbis paper presents a methodology for the generation of fully stressed shape configuration design of struaures. An important aspect of this approach is the ability to rrìodify the topology element model Then the boundary shape of the object represented by a finite Therefore, features such as holes or slots can De added even though they as well as have not been part of the initial model. This work is based on altering the finite element structure by removing or restoring elements to generate fully stressed designs subject to constraints on maximum stress value and maintenance of connectivity between the elements. The algorithm tion process with the normalized elastic modul uses binary value integer programming for the discrete optimizamalized modulus of each design element selaied as des^ n variable. The optimization results consist of a zero or one integer solution which indicates the states of the elements in the model The integer zero indicates that the modulus of the design element is zero and therefore the element is a candidate for deletion from the model to the original model The integer one leptesents no change in modulus value compared I and thus these design elements stay in the model. The developed approach can modify the inner and the outer shape of the structure without the need for a remeshing after each iteration and this reduces the computational time significantly. Design examples are provided to demonstrate the effectiveness of the proposed optimal design methodology and to illustrate the steps involved in this process.

Original languageEnglish
Title of host publication20th Design Automation Conference
Subtitle of host publicationVolume 2 - Robust Design Applications; Decomposition and Design Optimization; Optimization Tools and Applications
Pages61-68
Number of pages8
ISBN (Electronic)9780791897683
DOIs
StatePublished - 1994
EventASME 1994 Design Technical Conferences, DETC 1994, collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium - Minneapolis, United States
Duration: 11 Sep 199414 Sep 1994

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
VolumePart F167892-7

Conference

ConferenceASME 1994 Design Technical Conferences, DETC 1994, collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium
Country/TerritoryUnited States
CityMinneapolis
Period11/09/9414/09/94

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