Transfer Path Analysis of Structure-Borne Shock Absorber Noise in a Passenger Car

Paper #:
  • 2001-01-1441

Published:
  • 2001-04-30
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.
Pages:
9
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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