Abstract The presented work is focused on the development of a comprehensive thermo-mechanical model for predicting the temperature rise in thermoplastic polymer spur gears with any desired profile geometry while running. The specific constitutional behavior of thermoplastics influences the gear-meshing pattern, which can deviate substantially from ideal gear meshing, as typically exhibited by metal gears in moderate-loading conditions. Taking this aspect into account is of paramount importance if realistic temperature-rise predictions are to be made. The thermal response of the considered gear pair is studied thoroughly from both the analytical and experimental standpoints. Good agreement was found between the results of the model and the experimental measurements performed using a high-speed thermal imaging infrared camera, although it was also observed that the real-life temperature rise can increase noticeably if large geometric tolerance deviations from the ideal profile geometry are present. The presented experimental approach also offers the possibility to observe the temperature rise inside and outside the meshing cycle.

中文翻译：

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使用高速红外热成像进行实验验证的聚合物正齿轮的热机械建模

摘要 目前的工作重点是开发一个综合的热机械模型，用于预测具有任何所需轮廓几何形状的热塑性聚合物正齿轮在运行时的温升。热塑性塑料的特定组成行为会影响齿轮啮合模式，这可能会大大偏离理想的齿轮啮合，正如金属齿轮在中等负载条件下通常表现出的那样。如果要做出现实的温升预测，考虑到这一方面是至关重要的。从分析和实验的角度对所考虑的齿轮副的热响应进行了彻底的研究。模型结果与使用高速热成像红外摄像机进行的实验测量结果吻合良好，尽管还观察到，如果存在与理想轮廓几何形状的大几何公差偏差，则实际温升会显着增加。所提出的实验方法还提供了观察啮合循环内外温升的可能性。