Prediction of Gear Performance based on Recognition of Tooth Contact Pattern

齿轮副的“齿面接触模式观察”实际上只是齿轮车间中广泛采用的一种方法，可供齿轮传动装置的使用者了解该传动装置中的齿轮是否加工正确，或装配是否正确，或该传动装置是否处于设计阶段所预测的状态。有经验的齿轮工程师可以通过观察齿面接触规律来判断这些情况，但这种决定的所有依据都来自于他的经验，而不能表达为其他工程师所理解的工程信息。然而，即使是有经验的齿轮工程师也不能通过这样的观察来定量地预测这种齿轮传动的可靠性降低的程度或噪声和振动的状态。本研究开发了齿轮性能随渐开线斜齿轮、准双曲面和锥齿轮接触方式变化的定量预测程序。本研究将这种“齿形观察”的经验“诀窍”技术推广到有理论背景的工程方法中去。通过对齿面接触模式识别的观察，可以实现对应力状态和振动状态的定量预测。因此，本文的研究成果有助于提高齿轮传动装置的可靠性，实现齿轮传动装置的轻量化生产。

The "Observation of Tooth Contact Pattern" of gear pair is practically only one method incorporated widely in gearshop and by users of gear units to know, wether the gears in the unit are produced properly, or wether they are assembled properly, or wether the unit is in the state predicted at its design stage. The experienced gear engineer can decide these situation by the "Observation of Tooth Contact Pattern", but all the bases for such decision comes from his experience that cannot be expressed as the engineering information to be understood by other engineers. Even the experienced gear engineer can although not be able to predict the extent of the decrease of reliability or the state of noise and vibration of this gearing quantitatively by such observation. This research developed the computer program to predict the gear performance quantitatively as function to tooth contact pattern of involute helical gears and of hypoid and bevel gears. This research has generalized an empirical "Know How" technique of such "Observation of Tooth Contact Pattern" into the engineering method that is guaranteed by a theoretical back ground. This can realize the quantitative prediction of stress state and vibrational state by the observation of tooth contact pattern recognition. The results of this research contribute therefore to raise the reliability of gear units, to produce light weight gear unit and to