Output Only Modal Testing of a Car Body Subject to Engine Excitation

Rune Brincker; P. Andersen; N. Møller

Output Only Modal Testing of a Car Body Subject to Engine Excitation

Rune Brincker, P. Andersen, N. Møller

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

40 Citationer (Scopus)

536 Downloads (Pure)

Abstract

In this paper an output only modal testing and identification of a car body subject to engine excitation is presented. The response data were analysed using two different techniques: a non-parametric technique based on Frequency Domain Decomposition (FDD), and a parametric technique working on the raw data in time domain, a data driven Stochastic Subspace Identification (SSI) algorithm. Both techniques identified 16 modes under 85 Hz. The results of the two techniques were validated against each other. It was concluded, that even though some of the identified mode showed an unsatisfactory agreement when comparing results of the two techniques, most of the mode compared well, and thus, for the main part of the identified modes the modal estimates most be considered as reliable modal
parameters.

Originalsprog	Engelsk
Titel	IMAC : Proceedings of the 18th International Modal Analysis Conference (IMAC), San Antonio, Texas, USA, February 7-10, 2000
Antal sider	7
Forlag	Society for Experimental Mechanics
Publikationsdato	2000
Sider	786-792
Status	Udgivet - 2000
Begivenhed	The International Modal Analysis Conference - San Antonio, Texas, USA Varighed: 7 feb. 2000 → 10 feb. 2000 Konferencens nummer: 18

Konference

Konference	The International Modal Analysis Conference
Nummer	18
Land/Område	USA
By	San Antonio, Texas
Periode	07/02/2000 → 10/02/2000

Emneord

Modal Testings
Modal Identification
Output-Only Modal Testing
Non-Parametric Technique
Parametric Technique
Frequency Domain Decomposition
FDD
Stochastic Subspace Identification Algorithm
SSI

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Citationsformater

@inproceedings{f56602a0809411db8b97000ea68e967b,

title = "Output Only Modal Testing of a Car Body Subject to Engine Excitation",

abstract = "In this paper an output only modal testing and identification of a car body subject to engine excitation is presented. The response data were analysed using two different techniques: a non-parametric technique based on Frequency Domain Decomposition (FDD), and a parametric technique working on the raw data in time domain, a data driven Stochastic Subspace Identification (SSI) algorithm. Both techniques identified 16 modes under 85 Hz. The results of the two techniques were validated against each other. It was concluded, that even though some of the identified mode showed an unsatisfactory agreement when comparing results of the two techniques, most of the mode compared well, and thus, for the main part of the identified modes the modal estimates most be considered as reliable modalparameters.",

keywords = "Modal Testings, Modal Identification, Output-Only Modal Testing, Non-Parametric Technique, Parametric Technique, Frequency Domain Decomposition, FDD, Stochastic Subspace Identification Algorithm, SSI, Modal Testings, Modal Identification, Output-Only Modal Testing, Non-Parametric Technique, Parametric Technique, Frequency Domain Decomposition, FDD, Stochastic Subspace Identification Algorithm, SSI",

author = "Rune Brincker and P. Andersen and N. M{\o}ller",

year = "2000",

language = "English",

pages = "786--792",

booktitle = "IMAC : Proceedings of the 18th International Modal Analysis Conference (IMAC), San Antonio, Texas, USA, February 7-10, 2000",

publisher = "Society for Experimental Mechanics",

address = "United States",

note = "The International Modal Analysis Conference ; Conference date: 07-02-2000 Through 10-02-2000",

}

Brincker, R, Andersen, P & Møller, N 2000, Output Only Modal Testing of a Car Body Subject to Engine Excitation. i IMAC : Proceedings of the 18th International Modal Analysis Conference (IMAC), San Antonio, Texas, USA, February 7-10, 2000. Society for Experimental Mechanics, s. 786-792, The International Modal Analysis Conference, San Antonio, Texas, USA, 07/02/2000.

Output Only Modal Testing of a Car Body Subject to Engine Excitation. / Brincker, Rune; Andersen, P.; Møller, N.
IMAC : Proceedings of the 18th International Modal Analysis Conference (IMAC), San Antonio, Texas, USA, February 7-10, 2000. Society for Experimental Mechanics, 2000. s. 786-792.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Output Only Modal Testing of a Car Body Subject to Engine Excitation

AU - Brincker, Rune

AU - Andersen, P.

AU - Møller, N.

N1 - Conference code: 18

PY - 2000

Y1 - 2000

N2 - In this paper an output only modal testing and identification of a car body subject to engine excitation is presented. The response data were analysed using two different techniques: a non-parametric technique based on Frequency Domain Decomposition (FDD), and a parametric technique working on the raw data in time domain, a data driven Stochastic Subspace Identification (SSI) algorithm. Both techniques identified 16 modes under 85 Hz. The results of the two techniques were validated against each other. It was concluded, that even though some of the identified mode showed an unsatisfactory agreement when comparing results of the two techniques, most of the mode compared well, and thus, for the main part of the identified modes the modal estimates most be considered as reliable modalparameters.

AB - In this paper an output only modal testing and identification of a car body subject to engine excitation is presented. The response data were analysed using two different techniques: a non-parametric technique based on Frequency Domain Decomposition (FDD), and a parametric technique working on the raw data in time domain, a data driven Stochastic Subspace Identification (SSI) algorithm. Both techniques identified 16 modes under 85 Hz. The results of the two techniques were validated against each other. It was concluded, that even though some of the identified mode showed an unsatisfactory agreement when comparing results of the two techniques, most of the mode compared well, and thus, for the main part of the identified modes the modal estimates most be considered as reliable modalparameters.

KW - Modal Testings

KW - Modal Identification

KW - Output-Only Modal Testing

KW - Non-Parametric Technique

KW - Parametric Technique

KW - Frequency Domain Decomposition

KW - FDD

KW - Stochastic Subspace Identification Algorithm

KW - SSI

KW - Modal Testings

KW - Modal Identification

KW - Output-Only Modal Testing

KW - Non-Parametric Technique

KW - Parametric Technique

KW - Frequency Domain Decomposition

KW - FDD

KW - Stochastic Subspace Identification Algorithm

KW - SSI

M3 - Article in proceeding

SP - 786

EP - 792

BT - IMAC : Proceedings of the 18th International Modal Analysis Conference (IMAC), San Antonio, Texas, USA, February 7-10, 2000

PB - Society for Experimental Mechanics

T2 - The International Modal Analysis Conference

Y2 - 7 February 2000 through 10 February 2000

ER -

Output Only Modal Testing of a Car Body Subject to Engine Excitation

Abstract

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