Proceedings of the Computational Structural Engineering Institute Conference (한국전산구조공학회:학술대회논문집)
- 1994.04a
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- Pages.95-102
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- 1994
A PATH-SWITCHING STRATEGY BY COMBINING THE USE OF GENERALIZED INVERSE AND LINE SEARCH
- Choong, K.K. (Graduate Student, University of Tokyo) ;
- Hangai, Y. (Institute of Industrial Science, University of Tokyo) ;
- Kwun, T.J. (Sung Kyun Kwan University)
- Published : 1994.04.01
Abstract
A path-switching strategy by combining the use of generalized inverse and line search is proposed. A reliable predictor for the tangent vector to bifurcation path is first computed by using the generalized inverse approach. A line search in the direction of maximum gradient of total potential at the point of intersection between the above predictor and a constant loading plane introduced in the vicinity of the detected bifurcation point is then carried out for the purpose of obtaining an improved approximation for a point on bifurcation path. With this approximation obtained, an actual point on bifurcation path is then computed through iteration on the constant loading plane.
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