Structural damage detection of jointed frame structures using chaotic excitation and attractor analysis

Wu Bin, Zheng Yang, Qiu Qunhai, Xu Chao

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Engineering assembly structures will suffer joint damage inevitably under environmental loads, which may affect the integrity and functionality of structures, even cause the catastrophic event. In the paper, a method using chaotic excitation and attractor geometrical property analysis to identify the joint damage is investigated. This method utilizes the property that different joint conditions will alter the filtered chaotic signal dimension. Damage features are extracted from reconstructed attractors and used to identify the joint condition. A new parameter based on the attractor local variance is tested as damage feature. An experimental jointed frame structures is designed and the joint damage are induced by varying the fastener preload. The results show that this approach works well for detecting the joint damage and the feature is monotonic varying with the damage increase.

源语言英语
主期刊名Mechanical and Aerospace Engineering
885-890
页数6
DOI
出版状态已出版 - 2012
活动2012 3rd International Conference on Mechanical and Aerospace Engineering, ICMAE 2012 - Paris, 法国
期限: 7 7月 20128 7月 2012

出版系列

姓名Applied Mechanics and Materials
232
ISSN(印刷版)1660-9336
ISSN(电子版)1662-7482

会议

会议2012 3rd International Conference on Mechanical and Aerospace Engineering, ICMAE 2012
国家/地区法国
Paris
时期7/07/128/07/12

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