Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/66249
Title: Structural monitoring by system identification in time domain
Authors: Koh, C.G. 
Liaw, C.Y. 
Hong, B.
Issue Date: 1999
Source: Koh, C.G.,Liaw, C.Y.,Hong, B. (1999). Structural monitoring by system identification in time domain. Proceedings of SPIE - The International Society for Optical Engineering 3671 : 337-342. ScholarBank@NUS Repository.
Abstract: A system identification (SI) procedure to identify structural parameters is proposed in this paper. Instead of identifying parameters in the physical domain, which involves search in a large-dimensional parameter space, the search is made easier computationally in sub-domains of small-dimensional orders. Modal decomposition technique is employed. The objective function is the minimization of error of modal response history. Physical parameters are then recovered by making use of modal orthogonality properties. The Genetic Algorithm (GA) is employed based on the principle of natural selection whereby better genes survive and propagate and therefore increase the chance of converging to the best parameter set. For numerical study, a 10-story shear building is considered to illustrate the efficiency of the proposed procedure.
Source Title: Proceedings of SPIE - The International Society for Optical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/66249
ISSN: 0277786X
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

23
checked on Feb 23, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.