基于递归矩阵奇异熵的损伤识别方法

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (3) : 60-63.

论文

基于递归矩阵奇异熵的损伤识别方法

杨栋1,2 ,任伟新1,2

作者信息 +

Structrues damage detecting using singular entropy of recurrence matrix

Dong Yang1, 2, Wei-Xin Ren1, 2

Author information +

文章历史 +

摘要

对递归图方法在土木工程结构损伤检测中的适用性进行研究，对环境激励的结构响应信号采用多变量融合的方法，并扩展到高维相空间中，研究信号在高维空间中临近点的分布规律和运动特点，采用递归图理论，结合奇异熵理论提出一个新的递归量化指标——递归矩阵的奇异熵，将其作为损伤敏感特征指标，用于结构的损伤识别。数值算例验证了该指标的有效性。

Abstract

The Recurrence plot’s recognizing performance was applied in this paper. Signals, recorded at different locations on the structure, are using to reconstruct the phase space of the system’s dynamics and subsequently generate the multivariate recurrence matrix. Multivariate recurrence matrix is then used to construct a novel feature detecting damage combined with singular entropy. It is using for strucure damge identification. Numerical experimentation verified this feature’s validity.

导出引用

杨栋;;任伟新;. 基于递归矩阵奇异熵的损伤识别方法[J]. 振动与冲击, 2012, 31(3): 60-63

Dong Yang;;Wei-Xin Ren;. Structrues damage detecting using singular entropy of recurrence matrix[J]. Journal of Vibration and Shock, 2012, 31(3): 60-63