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Improving Suspension and Engine Mount Transfer Path Analysis Accuracy with Respect to Low Frequency Noise and Vibration

Article of Honda R&D Technical Review Vol.16 No.1


This paper describes a transfer path analysis method used to analyze the low frequency noise and vibration contribution of suspension and engine mounts caused by second order engine vibration. This transfer path analysis method is capable of removing transmitted forces from other paths (residual forces) besides the main path at a particular degree of freedom. Compared to the conventional methods, results from this analysis method had improved accuracy with respect to vehicle measurements. From the results of the transfer path analysis performed by using this method, frequency range and contribution by the suspension paths for low frequency noise and vibration are clarified.


(1) Plunt, J.: Strategy for transfer path analysis (TPA) applied to vibro-acoustic systems at medium and high frequencies, ISMA 23 (1998)
(2) Dubbaka, K.: Application of Noise Path Target Setting Using the Technique of Transfer Path Analysis, SAE Noise & Vibration Conference, 2003-01-1402 (2003)
(3) LMS International, “Transfer Path Analysis”: The Qualification and Quantification of Vibro-Acoustic Transfer Paths, LMS International, Application Notes (1995)
(4) Sakai, T.: Development Procedure for Interior Noise Performance by Virtual Vehicle Refinement, Proceedings of SAE Noise & Vibration Conference, 2001-01-1538 (2001)

Author (organization or company)

Masafumi KYUSE(Tochigi R&D Center)、Koichi TAKAHASHI(Tochigi R&D Center)、Tatsuhide SAKAI(Tochigi R&D Center)

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