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Prediction of Vehicle SEA Model Input Parameters a Sound Package

Article of Honda R&D Technical Review Vol.15 No.1

Summary

This paper describes a method for prediction of automotive sound package acoustical characteristics. This method is based on the transfer matrix approach and is applied to calculate the TL and absorption of multilayered insulation components from the acoustical impedance of each layer. The predicted results are necessary as fundamental input parameters of SEA vehicle models. The accuracy of this method was verified by comparing the predicted TL and absorption values of trimmed components with measurement results.

Reference

(1) Lyon, R.H.: Statistical Energy of Dynamical Systems, Theory and Applications, MIT Press (1975)
(2) Lauriks, W., Mees, P., Allard, J.F.: The acoustic transmission through layered systems, Journal of Sound and Vibration, Vol.155, p.125-132 (1992)
(3) Semeiuk, B.: The Simulation of the Acoustic Absorption and Transmission Characteristics of Automotive Material Configurations: The New Sisab Software, Rieter Automotive Conference Proceedings (1999)
(4) Chappuis, A.: Small Size Devices for Accurate Acoustical Measurements of Materials and Parts Used in Automobiles, SAE paper n. 931266
(5) Delany, M.E., Bazley, E.N.: Acoustical properties of fibrous absorbent materials, Applied Acoustics, Vol.3, p.105-116 (1970)

Author (organization or company)

Kazuhito MISAJI(Tochigi R&D Center)、Hiroko TADA(Tochigi R&D Center)、Yuji KURUHARA(Tochigi R&D Center)、Yoshihiro NOGUCHI(Tochigi R&D Center)、Tsuyoshi YAMASHITA(Tochigi R&D Center)

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