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Operational Modal Analysis on a Passenger Car Exhaust System
Technical Paper
2002-01-3574
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Operational Modal Analysis, also known as Ambient Modal Analysis, has an increasing interest in mechanical engineering. Especially on structures where the excitation and not less important the determination of the forces constitutes a problem
In this paper modal analysis is made on the exhaust system of a passenger car. For estimation of the modal parameters two scenarios were used: Estimation using only the responses when excited by the engine during operation and classical input output modal analysis. The results from the two different methods are compared.
When using the response measurements only to estimate the modal parameters different types of dedicated estimators for Operational Modal Analysis are used and compared.
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Authors
Topic
Citation
Møller, N. and Gade, S., "Operational Modal Analysis on a Passenger Car Exhaust System," SAE Technical Paper 2002-01-3574, 2002, https://doi.org/10.4271/2002-01-3574.Also In
References
- Brincker, R. Zhang L. Andersen P. “Modal Identification from Ambient Responses using Frequency Domain Decomposition Proc. of the 18 th International Modal Analysis Conference San Antonio, Texas February 7-10 2000
- Brincker, R. Andersen P. “ARMA Models in Modal Space” Proc. of the 17 th International Modal Analysis Conference Kissimee, Florida 1999
- Overschee, Van P. De Moor B. “Subspace Identification for Linear Systems” Kluver Academic Publishers 1996
- Juang, J.N. “Applied System Identification” Prentice Hall Englewood Cliffs, New Jersey 1994
- Brincker, R. Andersen P. Møller Nis “Output-Only Modal Testing of a Car Body Bubject to Engine Excitation” Proc. of the 18 th International Modal Analysis Conference San Antonio, Texas February 7-10 2000
- Møller, N. Brincker R. Andersen P. “Modal Extraction on a Diesel Engine in Operation” Proc. of the 18 th International Modal analysis Conference San Antonio, Texas February 7-10 2000
- Brincker Rune 1) Zhang Lingmi 2) Andersen Palle 3) Output-Only Modal Analysis by Frequency Domain Decomposition ISMA 25
- Møller Brincker Andersen Herlufsen Modal testing of mechanical structures subject to operational excitation forces IMAC XIX
- Brüel & Kjær Product Data PULSE Multi-Analyser system type 3560 Product Data Operational Modal Analysis type 7760