Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake Testing

Centrifuge model experiments have generated complex transient vibration data. New algorithms for time-frequency analysis using harmonic wavelets provide a good method of analyzing these data. We describe how the experimental data have been collected and show typical time-frequency maps obtained by t...

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Main Authors: David E. Newland, Gary D. Butler
Format: Article
Language:English
Published: Wiley 2000-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2000/517193
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author David E. Newland
Gary D. Butler
author_facet David E. Newland
Gary D. Butler
author_sort David E. Newland
collection DOAJ
description Centrifuge model experiments have generated complex transient vibration data. New algorithms for time-frequency analysis using harmonic wavelets provide a good method of analyzing these data. We describe how the experimental data have been collected and show typical time-frequency maps obtained by the harmonic wavelet algorithm. Some preliminary comments on the interpretation of these maps are given in terms of the physics of the underlying model. Important features of the motion that are not otherwise apparent emerge from the analysis. Later papers will deal with their more detailed interpretation and their implications for centrifuge modeling.
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series Shock and Vibration
spelling doaj-art-7ea65eb37e1a4bfe87a4c041e69223522025-08-20T03:35:48ZengWileyShock and Vibration1070-96221875-92032000-01-017419520210.1155/2000/517193Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake TestingDavid E. Newland0Gary D. Butler1Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, UKDepartment of Engineering, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, UKCentrifuge model experiments have generated complex transient vibration data. New algorithms for time-frequency analysis using harmonic wavelets provide a good method of analyzing these data. We describe how the experimental data have been collected and show typical time-frequency maps obtained by the harmonic wavelet algorithm. Some preliminary comments on the interpretation of these maps are given in terms of the physics of the underlying model. Important features of the motion that are not otherwise apparent emerge from the analysis. Later papers will deal with their more detailed interpretation and their implications for centrifuge modeling.http://dx.doi.org/10.1155/2000/517193
spellingShingle David E. Newland
Gary D. Butler
Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake Testing
Shock and Vibration
title Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake Testing
title_full Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake Testing
title_fullStr Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake Testing
title_full_unstemmed Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake Testing
title_short Application of Time-Frequency Analysis to Transient Data from Centrifuge Earthquake Testing
title_sort application of time frequency analysis to transient data from centrifuge earthquake testing
url http://dx.doi.org/10.1155/2000/517193
work_keys_str_mv AT davidenewland applicationoftimefrequencyanalysistotransientdatafromcentrifugeearthquaketesting
AT garydbutler applicationoftimefrequencyanalysistotransientdatafromcentrifugeearthquaketesting