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Transfer Path Analysis of Structure-Borne Shock Absorber Noise in a Passenger Car
Technical Paper
2001-01-1441
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes a method to separate structure-borne noise, which comes from the shock absorber, from the measured vehicle interior sound pressure. The transfer path analysis (TPA) was used. Shock absorber was considered as an input source while the sound pressure at the driver seat as its output. It was found that the sound pressure at the driver seat position and accelerations at the shock absorber mounting points are strongly correlated. Using one-third octave band analysis, the contribution of shock absorber structure-borne noise to the driver seat sound pressure was analyzed. Also the relationship between the measured acceleration and sound pressure was studied.
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Citation
Lee, J., Oh, K., Park, Y., Gwon, D. et al., "Transfer Path Analysis of Structure-Borne Shock Absorber Noise in a Passenger Car," SAE Technical Paper 2001-01-1441, 2001, https://doi.org/10.4271/2001-01-1441.Also In
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6; Published: 2002-09-15
Number: V110-6; Published: 2002-09-15
References
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- Cherng Jonh G. Akin Tim “Noise Measurements and Characterization of Automotive Dampers” SAE Paper No. 931271 1993
- Nakada Etsuro Mizobuchi Toshihiro Komatsu Satoshi “Analysis of Shock Absorber Rattling Noise 1” KAYABA Co. 1997
- LMS International “Transfer Path Analysis: The Qualification and Quantification of Vibro-Acoustic Transfer Paths” 1997
- LMS International “LMS CADA-X Transfer Path Analysis Tutorial” 1997
- Kang Tae-Won Lim Sang-Gyu “Tools to Understand Interior Noise due to Road Excitation in Cars” Journal of KSNVE 8 6 1158 1165 1998
- Beckwith Thomas G. Marangoni Roy D. John H. Lienhard V. Mechanical Measurements Fifth Addison-Wesley Publishing Company 1993