In this paper, an elastohydrodynamic impact model is proposed, and the prediction of lubricating film performance considering squeeze effect and thermal effect is presented. Effects of sinusoidal impulse load, sinusoidal impulse entrainment velocity, multi‐frequency vibration, and acoustic noise on thermo‐mechanical characteristics of gear lube are numerically investigated. Results show that both sinusoidal impulse load and sinusoidal impulse entrainment velocity can cause remarkable increases in central film thickness and minimum film thickness and induce small reduction in friction coefficient. The sinusoidal impulse load causes considerable increase in central film pressure; however, the sinusoidal impulse entrainment velocity induces significant decrease in central film pressure. The multiple high constant frequency vibration causes considerable increment in film pressure, but maintains small fluctuation in film thickness. Additionally, the consequence of multiple high constant frequency vibration induces evident reduction in friction coefficient.

中文翻译：

---

脉冲激励和振动对正齿轮传动热弹性流体力学特性的影响

本文提出了一种弹性流体动力冲击模型，并提出了考虑挤压效应和热效应的润滑膜性能预测。数值研究了正弦脉冲负载，正弦脉冲夹带速度，多频振动和声噪声对齿轮润滑油热机械特性的影响。结果表明，正弦脉冲载荷和正弦脉冲夹带速度均可引起中心膜厚度和最小膜厚度的显着增加，并引起摩擦系数的小幅降低。正弦脉冲负载会引起中心薄膜压力的显着增加。然而，正弦脉冲夹带速度引起中心膜压力的显着降低。多次高频率振动会导致薄膜压力显着增加，但薄膜厚度会保持很小的波动。另外，多次高频率振动的结果导致摩擦系数明显降低。