Mechanism of Multi-Source Excitation for Whistling Sound of Gear Teeth in Automotive Electric Drive System

¹ University of Sanya, Sanya 572022, Hainan, China; New Energy and Intelligent Vehicle Engineering Research Center of Hainan Province, Sanya 572022, Hainan, China,

JERA 2025 , 9(4), 65–70; https://doi.org/10.26689/jera.v9i4.11440

© 2025 by the Authors. Licensee Whioce Publishing, Singapore. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ )

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Abstract

This paper deeply discusses the causes of gear howling noise, the identification and analysis of multi-source excitation, the transmission path of dynamic noise, simulation and experimental research, case analysis, optimization effect, etc., aiming to better provide a certain guideline and reference for relevant researchers.

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