Structural damage detection through chaotic interrogation and attractor analysis

Qunhai Qiu, Chao Xu, Bin Wu

科研成果: 书/报告/会议事项章节会议稿件同行评审

7 引用 (Scopus)

摘要

In this paper, a new approach for damage detection using a chaotic signal as an input excitation and steady state attractor-based measures as diagnostic parameters is investigated by means of numerical simulations. The method utilizes the deterministic, extreme sensitive properties of the chaotic signal to give rise to a low-dimensional response for feature extraction. This approach is applied to two numerical examples, the 4 DOF spring-mass-damper and a cantilevered beam system, where the damage is produced by varying the structural damping and stiffness, respectively. Lyapunov dimension is calculated as a "feature" for detecting the damage. Results show that this approach is feasible to detecting structural damage.

源语言英语
主期刊名Advances in Structures
2515-2520
页数6
DOI
出版状态已出版 - 2011
活动2011 International Conference on Structures and Building Materials, ICSBM 2011 - Guangzhou, 中国
期限: 7 1月 20119 1月 2011

出版系列

姓名Advanced Materials Research
163-167
ISSN(印刷版)1022-6680

会议

会议2011 International Conference on Structures and Building Materials, ICSBM 2011
国家/地区中国
Guangzhou
时期7/01/119/01/11

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