Temperature Distribution in Teeth and Blanks of Ultra High-Speed Gears : 1st Report, Measurement of Temperature Distribution in Teeth and Blanks
Temperature Distribution in Teeth and Blanks of Ultra High-Speed Gears : 1st Report, Measurement of Temperature Distribution in Teeth and Blanks
复制标题
超高速齿轮的齿和毛坯的温度分布：第 1 份报告，齿和毛坯的温度分布测量
DOI：
10.1299/jsmec.44.203
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
M. Fukutomi
中科院分区：
文献类型：
--
作者：
S. Matsumoto;Y. Tozaki;M. Fukutomi
目前，在工业中，要求高速涡轮机械（诸如压缩机和蒸汽或燃气涡轮机）具有增加的功率容量。因此，需要大的齿轮尺寸，这导致不均匀的温度分布。由于温度分布的不均匀性，会产生不均匀的热变形。由于这种热变形引起的载荷分布变化被认为与划痕和点蚀失效密切相关。为了确保高速齿轮箱的可靠性，有必要改进以下技术。(1)齿轮温升及热变形的预测方法。(2)牙齿矫正防止热变形。本文提出了一种计算齿面和毛坯温度的三维模型。该模型包括润滑油对流冷却的影响和由于机械变形而引起的载荷分布的变化。轮齿温度和弯曲应力的计算结果与实验结果吻合较好。实践证明，该分析方法是实用的.
Currently in industries, high- speed turbo machineries such as compressors and steam or gas turbines are required to have increased power capacities. Due to this, a large gear size is required which leads to nonuniform temperature distribution. As the result of nonuniform temperature distribution, nonuniform thermal distortion occurs. Change in load distribution due to this thermal distortion is considered to be closely related to scoring and pitting failures. In order to ensure reliability of high-speed gear units, it is necessary to improve the following techniques. (1) The method of predicting the temperature rise of gears and thermal distortion. (2) Tooth correction against thermal distortion. In this paper, a three-dimensional model for calculating the temperature of teeth surfaces and blanks is presented. This model includes the effects of convective cooling by lubricating oil and the change in load distribution due to mechanical deformation. The calculated results of gear teeth temperature and bending stress are in reasonable agreement with the experimental results. It is confirmed that the analytical method is practical and useful.