New Separation Techniques for Output-Only Modal Analysis
The paper is devoted to the problem of discriminating between operational and natural modes of structures excited by generic inputs. This case often occurs when the system under analysis holds rotating parts and is contemporary excited by ambient noise; in this case the output-only techniques may fa...
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Format: | Article |
Language: | English |
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Wiley
2004-01-01
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Series: | Shock and Vibration |
Online Access: | http://dx.doi.org/10.1155/2004/560576 |
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author | Jérôme Antoni Luigi Garibaldi Stefano Marchesiello Menad Sidhamed |
author_facet | Jérôme Antoni Luigi Garibaldi Stefano Marchesiello Menad Sidhamed |
author_sort | Jérôme Antoni |
collection | DOAJ |
description | The paper is devoted to the problem of discriminating between operational and natural modes of structures excited by generic inputs. This case often occurs when the system under analysis holds rotating parts and is contemporary excited by ambient noise; in this case the output-only techniques may fail being easily trapped in a misinterpretation of the system eigenvalues. A survey of the methods available in literature is given, together with the explanation of their failures. To solve this problem, two new techniques are introduced and their capabilities are checked with numerical and experimental data from a paper machine. |
format | Article |
id | doaj-art-6924fc78a1264946bb52702665d9401c |
institution | Kabale University |
issn | 1070-9622 1875-9203 |
language | English |
publishDate | 2004-01-01 |
publisher | Wiley |
record_format | Article |
series | Shock and Vibration |
spelling | doaj-art-6924fc78a1264946bb52702665d9401c2025-02-03T01:02:37ZengWileyShock and Vibration1070-96221875-92032004-01-01113-422724210.1155/2004/560576New Separation Techniques for Output-Only Modal AnalysisJérôme Antoni0Luigi Garibaldi1Stefano Marchesiello2Menad Sidhamed3University of Technology of Compiègne, FrancePolitecnico di Torino, ItalyPolitecnico di Torino, ItalyUniversity of Technology of Compiègne, FranceThe paper is devoted to the problem of discriminating between operational and natural modes of structures excited by generic inputs. This case often occurs when the system under analysis holds rotating parts and is contemporary excited by ambient noise; in this case the output-only techniques may fail being easily trapped in a misinterpretation of the system eigenvalues. A survey of the methods available in literature is given, together with the explanation of their failures. To solve this problem, two new techniques are introduced and their capabilities are checked with numerical and experimental data from a paper machine.http://dx.doi.org/10.1155/2004/560576 |
spellingShingle | Jérôme Antoni Luigi Garibaldi Stefano Marchesiello Menad Sidhamed New Separation Techniques for Output-Only Modal Analysis Shock and Vibration |
title | New Separation Techniques for Output-Only Modal Analysis |
title_full | New Separation Techniques for Output-Only Modal Analysis |
title_fullStr | New Separation Techniques for Output-Only Modal Analysis |
title_full_unstemmed | New Separation Techniques for Output-Only Modal Analysis |
title_short | New Separation Techniques for Output-Only Modal Analysis |
title_sort | new separation techniques for output only modal analysis |
url | http://dx.doi.org/10.1155/2004/560576 |
work_keys_str_mv | AT jeromeantoni newseparationtechniquesforoutputonlymodalanalysis AT luigigaribaldi newseparationtechniquesforoutputonlymodalanalysis AT stefanomarchesiello newseparationtechniquesforoutputonlymodalanalysis AT menadsidhamed newseparationtechniquesforoutputonlymodalanalysis |