Structural topology optimization using two-level dynamic condensation scheme

Soohyun Park, Hyungi Kim, Maenghyo Cho, Heung Soo Kim

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

Abstract

Structural topology optimization to maximize the eigenvalue is studied. Ira this paper, we apply the two-level condensation scheme(TLCS) io topology optimization problems. The TLCS scheme has two steps. At the first step, we select the candidate element area on the basis of Rayleigh energy estimation. Tben the second step consists of the final reduced system using sequential elimination scheme to the candidate element area selected in the first step. Mode tracking method, so called MAC, is introduced to enhance the accuracy of sensitivity analysis. Design problems of beam and plate are solved to maximize eigenvalue and linear summation of eigenvalues. The accuracy of the result from the reduced system analysis is same as that of the fuD system analysis. The two-level condensation scheme can provide efficiency and accuracy to the topological design optimization of the large scale structure for dynamic problem.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Subtitle of host publication14th AIAA/ASME/AHS Adaptive Structures Conference, 8th AIAA Non-deterministic App
Pages4782-4800
Number of pages19
StatePublished - 2006
Event47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Newport, RI, United States
Duration: 1 May 20064 May 2006

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Volume7
ISSN (Print)0273-4508

Conference

Conference47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Country/TerritoryUnited States
CityNewport, RI
Period1/05/064/05/06

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