TY - GEN
T1 - An improved coupled local minimizers technique for finite element model updating
AU - Liu, Y.
AU - Duan, Z. D.
PY - 2006
Y1 - 2006
N2 - A new optimal technique, called coupled local minimizers (CLM) was proposed for solve optimization problem recently. CLM algorithm is demonstrated to be an effective global optimization method with coupled parallel strategy and the fast convergence. However, for optimal problem with large dimension such as model updating of real complex structures, which is usually rendered as an optimization problem, the effectiveness of CLM has not been validated. In this paper the CLM method is introduced, and problems with CLM that may result in its inability for large dimension optimization problem are pointed out. The CLM method is then improved in three aspects, i.e., adaptive search steps, chaos orbits for initial population generating, multidirectional network. Significant improvements of CLM are demonstrated. Lastly the improved CLM is employed to update a 14-bay frame model.
AB - A new optimal technique, called coupled local minimizers (CLM) was proposed for solve optimization problem recently. CLM algorithm is demonstrated to be an effective global optimization method with coupled parallel strategy and the fast convergence. However, for optimal problem with large dimension such as model updating of real complex structures, which is usually rendered as an optimization problem, the effectiveness of CLM has not been validated. In this paper the CLM method is introduced, and problems with CLM that may result in its inability for large dimension optimization problem are pointed out. The CLM method is then improved in three aspects, i.e., adaptive search steps, chaos orbits for initial population generating, multidirectional network. Significant improvements of CLM are demonstrated. Lastly the improved CLM is employed to update a 14-bay frame model.
UR - https://www.scopus.com/pages/publications/84890631696
M3 - 会议稿件
AN - SCOPUS:84890631696
SN - 0415396514
SN - 9780415396516
T3 - Structural Health Monitoring and Intelligent Infrastructure - Proceedings of the 2nd International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2005
SP - 1215
EP - 1220
BT - Structural Health Monitoring and Intelligent Infrastructure - Proceedings of the 2nd International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2005
T2 - 2nd International Conference on Structural Health Monitoring of Intelligent Infrastructure, SHMII 2005
Y2 - 16 November 2005 through 18 November 2005
ER -