Abstract CVT chains have become widely used in vehicles because the slip between parts is very small, which enables efficient power transmission. However, the motion caused by the pins of the CVT chain entering and leaving the pulleys one after another during the power transmission process results in periodic motion of the whole chain. This behavior is known to affect noise and other basic performance aspects of CVTs. Therefore, it is important to study the geometrical specifications of the chain that affect periodic motion, such as the shape and dimensions of the parts. This research focused on the cross-sectional curve of the pins of a CVT chain and studied the optimal shape to reduce the vibration of the chain chord. The influence of differences in the pin cross-sectional curve on noise performance was predicted by a geometric model. The validity of this geometric model was verified by measuring the noise of a prototype chain.

中文翻译：

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销齿廓曲线对无级变速器（CVT）链条噪声和振动的影响

摘要 无级变速器链条由于零件之间的滑动很小，可以实现高效的动力传输，因此在车辆上得到了广泛的应用。但是，在动力传递过程中，CVT链条的销钉逐个进出皮带轮所引起的运动，导致整条链条的周期性运动。众所周知，这种行为会影响 CVT 的噪声和其他基本性能方面。因此，重要的是研究影响周期运动的链条的几何规格，例如零件的形状和尺寸。本研究重点研究了无级变速器链条销的横截面曲线，研究了减少链弦振动的最佳形状。通过几何模型预测销截面曲线的差异对噪声性能的影响。