Time–frequency and time–scale analyses for structural health monitoring

Author:

Staszewski Wiesław J1,Robertson Amy N2

Affiliation:

1. Department of Mechanical Engineering, Sheffield UniversityMappin Street, Sheffield S1 3JD, UK

2. HYTEC, Inc. contracting for Los Alamos National Laboraoy4735 Walnut, Suite W-100, Boulder, CO 80301, USA

Abstract

Signal processing is one of the most important elements of structural health monitoring. This paper documents applications of time-variant analysis for damage detection. Two main approaches, the time–frequency and the time–scale analyses are discussed. The discussion is illustrated by application examples relevant to damage detection.

Publisher

The Royal Society

Subject

General Physics and Astronomy,General Engineering,General Mathematics

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