噪音和振动是汽车主要使用性能的指标之一,因为它决定汽车使用寿命和舒适性。汽车上的振动和噪音的来源很多,但主要来自变速器的齿轮机构,后桥以及发动机等。苏联汽车工艺研究所和一些汽车厂共同设计了测量齿轮运动误差和周期误差的仪器——齿轮单面啮合检查仪。 Noise and vibration are among the indicators of the major performance characteristics of a car because it determines the life and comfort of the car. There are many sources of vibration and noise on the car, but mainly from the transmission gear mechanism, the rear axle and the engine. The Institute of Automotive Technology of the United States and some car factories jointly designed the gear single-sided engagement checker, an instrument for measuring the movement error and cycle error of gears.