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Article | REF: BM2596 V1

Bruits et vibrations des transmissions latérales Automotive driveshafts NVH

Authors: Elian BARON, Shanjin WANG

Publication date: September 10, 2020, Review date: February 29, 2024

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4. Bearing

In this paragraph, we are interested in the phenomenon of "cooing", where the transmission plays a direct and indirect role, the excitations coming from both the engine and the transmission, the latter acting on the phenomenon through its own modes of vibration. .

4.1 Subjective perception

Growl noise is a modulated noise whose modulation frequency varies with vehicle speed (unlike H 2 /R 6 beat). It can be present in all gear ratios, and is particularly...

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