Damage identification of structures based on sensitivity equations using PCA and PSD data-Reference-Cited by-同舟云学术

Damage identification of structures based on sensitivity equations using PCA and PSD data

Published:2022-12-09 Issue: Volume: Page:095440622211388
ISSN:0954-4062
Container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Author:

Fallah Narges¹,Hoseini Vaez Seyed Rohollah¹^ORCID,Esfandiari Akbar²

Affiliation:

1. Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, Iran

2. Department of Marine Engineering, Amirkabir University of Technology, Tehran, Iran

Abstract

This article presents a novel model updating approach to the problem of structural damage identification. The approach is based on principal component analysis (PCA) of power spectral density (PSD) data obtained from incompletely measured structural responses. Damage detection was done by solving an innovative sensitivity equation based on least-squares optimization that could help solve the problem in a time-efficient manner and extend the results for industrial applications. Simulations of a 2D steel truss and a 2D steel frame were considered for a thorough comparison. The simulation results clearly showed the effectiveness of the method and its superior performance for solutions such as a PSD-only strategy and frequency response function (FRF) based data analysis along with singular value decomposition.

Publisher

SAGE Publications

Subject

Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/09544062221138846

Reference38 articles.

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