Proceeding of KASS Symposium (한국공간구조학회:학술대회논문집)
- 2006.05a
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- Pages.175-181
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- 2006
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- 2287-7401(eISSN)
Partial Reanalysis Algorithm with Static Condensation
정적응축기법을 이용한 부분재해석 알고리즘
Abstract
This paper presents an efficient reanalysis algorithm, named PRAS (Partial Reanalysis algorithm using Adaptable Substructuring), for the partially changed structures. The algorithm recalculates directly any displacement or member force under consideration in real time without a full reanalysis in spite of local changes in member stiffness or connectivity. The key procedures consists of 1) partitioning the whole structure into the changed part and the unchanged part, 2) condensing the internal degrees of freedom and forming the unchanged part substructure, 3) assembling and solving the new stiffness matrix from the unchanged part substructure and the changed members.
Keywords
- PRAS Algorithm;
- Adaptable substructuring;
- Response force distribution factor;
- Structural reanalysis;
- Stiffness change;
- Static condensation