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Multivariate statistics process control for dimensionality reduction in structural assessment
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DOI：10.1016/j.ymssp.2007.05.001.png)
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摘要
En 中文
This paper presents advantages of using techniques like principal component analysis (PCA), partial least square (PLS) and some extensions called multiway PCA (MPCA) and multiway PLS (MPLS) for reducing dimensionality in damage identification problem, in particular, detecting and locating impacts in a part of a commercial aircraft wing flap. It is shown that applying MPCA and MPLS is convenient in systems which many sensors are monitoring the structures, because the reciprocal relation between signals is considered. The methodology used for detecting and locating the impact uses the philosophy of case-based reasoning, where single PCA and PLS are used also for organizing previous knowledge in memory. Sixteen approaches combining those techniques have been performed. Results from all of them are presented, compared and discussed. (c) 2007 Elsevier Ltd. All rights reserved.
Keyword:
principal component analysis
multiway principal component analysis
partial least square
multiway partial least square
structural health monitoring
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8.9
论文数:
1.3W
被引数:
6.6W
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