某乘用车变速器啸叫音的改善

赵俊华　穆国宝

摘 要：隨着人们生活水平的提高，人们对汽车的舒适性有更高的要求。变速器作为整车的重要组成部分，汽车厂家对其 NVH 性能也提出了更高的要求。其中，变速器啸叫噪音是当前发生的最多、最难解决的NVH问题。因此，本文通过对某变速器四档啸叫问题进行研究，对车内噪声源及驱动轴进行分析，确定了啸叫问题产生的主要原因，并提出了相应的优化方案，为后续应对类似问题提供了方法和思路。

关键词：变速器 啸叫 NVH 噪声

The Improvement of the Gear Whine Noise of a Passenger Car’ s Transmission

Zhao Junhua Mu Guobao

Abstract：People have a higher requirement for automobile comfort， as the improvement of people's living standards. As one of the important components of the vehicle， the automobile manufacturer has also a higher requirement for the transmission NVH performance. And the gear whine noise of the transmission is the most difficult problems to be solved. Therefore， in this paper， the four-shift-gear-whine noise of one transmission is to be studied， the inside source and the drive shaft is analyzed， the main reason led to the problem is determined， and the relevant optimizing solution is put forward so as to provide method and solution for the same problems in the future.

Key words：transmission， gear whine， NVH， noise

The Improvement of the Gear Whine Noise of a Passenger Car’ s Transmission

Zhao Junhua Mu Guobao

Abstract：People have a higher requirement for automobile comfort， as the improvement of people's living standards. As one of the important components of the vehicle， the automobile manufacturer has also a higher requirement for the transmission NVH performance. And the gear whine noise of the transmission is the most difficult problems to be solved. Therefore， in this paper， the four-shift-gear-whine noise of one transmission is to be studied， the inside source and the drive shaft is analyzed， the main reason led to the problem is determined， and the relevant optimizing solution is put forward so as to provide method and solution for the same problems in the future.

Key words：transmission， gear whine， NVH， noise