Substructure Damage Detection Method for Shear Structure Using Sub-time Series and ARMAX

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原文链接

NETL
Trans Tech Publications Ltd

外文摘要：A local damage detection method for shear structure based on substructure approach and sub-time series superposition is proposed， which is promising for application in parallel and distributed damage detection systems。 This method requires only three sensors to identify localized damage in any story of a building and it doesn't require constructing the structure models。 A substructure method was used in this method to divide a complete structure into several substructures。 Each substructure has a considerably smaller number of degrees of freedom (DOFs) which makes fewer requirements on the computing power of the data processing system。 The algorithm is simple， which involves only algebra calculation and does not need any iterative computation。 Moreover the damage detection process can be independently conducted on each substructure。 Thus， this method is easy， efficient and suitable for being embedded into parallel and distributed damage detection systems。 To better assess the performance of the method proposed above， experimental verification of the proposed approach has been conducted， which shows the proposed method works quite well and stably。

外文关键词：

substructuresub-time seriesARMAXshear structuredamage detectionsystem identification

作者：

Liu Mei、Akira Mita、Zhenhua Xing

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作者单位：

Department of System Design Engineering, Keio University,3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan

会议名称：

Asia-Pacific workshop on structural health monitoring

会议地点：

Melbourne(AU)

会议母体文献：

Structural health monitoring: research and applications

页码：

149-159

出版时间：

2012

DOI：

10.4028/www.scientific.net/KEM.558.149