We characterized the dynamic behavior of a pair of high performance aeronautical gears which are part of a complex transmission system. The gear pair was tested using a mechanical recirculating power test rig designed to simulate the severe operating conditions of transmitted torque and angular speed. The test rig and the most important phenomena that influence its dynamic behavior are described. A (static) finite element model, developed to calculate the input parameters for the dynamic analysis of the tested gears, is also presented. Using the results of the FE model, we developed a lumped dynamical model with which it is possible to reproduce the most significant dynamic phenomena of the test rig. We characterized the behavior of the test rig focusing on the actual loads transmitted by the tested gears. The dynamic model was validated by comparing its results with the experimental outcomes in various test conditions. The comparison highlights the limitations of the design procedures based on common standards for assessing the dynamic overload experienced by heavy-duty gear transmission systems.

我们表征了作为复杂传动系统一部分的一对高性能航空齿轮的动态性能。使用机械循环动力试验台对齿轮副进行了测试，该试验台设计为模拟传递的扭矩和角速度的严酷工作条件。描述了试验台和影响其动态行为的最重要现象。还介绍了一个（静态）有限元模型，该模型用于计算输入参数以对被测齿轮进行动态分析。利用有限元模型的结果，我们开发了集总动力学模型，利用该模型可以重现试验台最重要的动力学现象。我们根据测试齿轮传递的实际负载来表征测试设备的性能。通过将其结果与各种测试条件下的实验结果进行比较来验证动态模型。比较结果突出了基于通用标准的设计程序的局限性，这些标准用于评估重型齿轮传动系统所经历的动态过载。