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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chun Nam Wong Jingqi Xiong Yao Jiang Zhao |
| Copyright Year | 2011 |
| Description | Author affiliation: Jinchuan Corporation Limited, Jinchang, China (Yao Jiang Zhao) || School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, China (Chun Nam Wong; Jingqi Xiong) |
| Abstract | A generic method is formulated to estimate damage location and extent from the explicit perturbation terms of eigenparameters. Specific permutation numbers and generalized Kronecker delta functions are composed. Stiffness parameters are estimated from these equations, inversely, using BFGS optimization. The algorithm is iterative, and it terminates under certain criteria. A fixed-fixed beam with even elements is used as test structure to investigate the applicability of the developed approach. In six elements beam, second order algorithm converges faster to 1% d-norm for small percentage damage. Meanwhile, first order algorithm converges faster for medium percentage damage. Both first and second order algorithms are nearly the same for large percentage damage. In all percentage damages, second order algorithm converges faster to the minimum percentage error vectors. For eight elements large percentage damage and ten elements small percentage damage, second order algorithm converges faster to their termination criteria. |
| Starting Page | 908 |
| Ending Page | 914 |
| File Size | 921500 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781457712296 |
| e-ISBN | 9781457712326 |
| DOI | 10.1109/ICQR2MSE.2011.5976752 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-06-17 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Second order perturbation Systematics Damage detection Estimation BFGS optimization Fixed-fixed beam Eigenvalues and eigenfunctions Mathematical model Equations Monitoring Manganese |
| Content Type | Text |
| Resource Type | Article |
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