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Quantification of dynamic forces applied by engine fuel injector by inverse methods

Quantification of dynamic forces applied by engine fuel injector by inverse methods
Quantification of dynamic forces applied by engine fuel injector by inverse methods
The Transfer Path Analysis relies on the estimation of the dynamic forces at the connecting points between the vibratonal source and its receiving structure. Inverse methods are widely used, in which a matrix of measured accelerances is inverted at each frequency and used with the operational acceleration data to find the forces. However, the results can be unreliable due to the poor conditioning of this matrix.
In this article, some recently proposed techniques to deal with the problem of ill conditioning are applied on an industrial case : the estimation of the dynamic forces applied by a fuel injector on a receiving structure, in the frequency range 0-15 kHz.
In a first step, the experimental procedure has been defined and validated using artificial excitation. In a second step, it has been applied with different type of fuel injector. This article details the selection of optimised sensor location to reduce the condition number of the accelerance matrix and the use of improved singular value rejection methods.
noise engineering, vibration engineering, ISMA
9073802822
2895-2906
ISMA Publications
Bouvet, Pascal
1c215149-9fd3-4604-a39d-b27d6ee9f6f4
Lemaire, G.
8b5cae7f-7336-443a-ab4e-66d55d3f51ee
Thompson, David J.
bca37fd3-d692-4779-b663-5916b01edae5
Gauch, Philippe
77a17747-73be-4329-9aa5-d5d8f6bf44b1
Bouvet, Pascal
1c215149-9fd3-4604-a39d-b27d6ee9f6f4
Lemaire, G.
8b5cae7f-7336-443a-ab4e-66d55d3f51ee
Thompson, David J.
bca37fd3-d692-4779-b663-5916b01edae5
Gauch, Philippe
77a17747-73be-4329-9aa5-d5d8f6bf44b1

Bouvet, Pascal, Lemaire, G., Thompson, David J. and Gauch, Philippe (2004) Quantification of dynamic forces applied by engine fuel injector by inverse methods. In Proceedings of ISMA. ISMA Publications. pp. 2895-2906 .

Record type: Conference or Workshop Item (Paper)

Abstract

The Transfer Path Analysis relies on the estimation of the dynamic forces at the connecting points between the vibratonal source and its receiving structure. Inverse methods are widely used, in which a matrix of measured accelerances is inverted at each frequency and used with the operational acceleration data to find the forces. However, the results can be unreliable due to the poor conditioning of this matrix.
In this article, some recently proposed techniques to deal with the problem of ill conditioning are applied on an industrial case : the estimation of the dynamic forces applied by a fuel injector on a receiving structure, in the frequency range 0-15 kHz.
In a first step, the experimental procedure has been defined and validated using artificial excitation. In a second step, it has been applied with different type of fuel injector. This article details the selection of optimised sensor location to reduce the condition number of the accelerance matrix and the use of improved singular value rejection methods.

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More information

Published date: 2004
Additional Information: Transfer path analysis - TPA1 (ID 169)
Venue - Dates: ISMA 2004: International Conference on Noise and Vibration Engineering, 2004-09-20 - 2004-09-22
Keywords: noise engineering, vibration engineering, ISMA

Identifiers

Local EPrints ID: 28148
URI: https://eprints.soton.ac.uk/id/eprint/28148
ISBN: 9073802822
PURE UUID: 6f112de2-dfa1-4706-9998-2059a10caf46
ORCID for David J. Thompson: ORCID iD orcid.org/0000-0002-7964-5906

Catalogue record

Date deposited: 02 May 2006
Last modified: 06 Jun 2018 13:02

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