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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part J. Journal of engineering tribology >A mixed finite element and analytical method to predict load, mechanical power loss and improved efficiency in non-standard spur gear drives
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A mixed finite element and analytical method to predict load, mechanical power loss and improved efficiency in non-standard spur gear drives

机译：一种混合有限元和分析方法，以预测负载，机械功率损耗和非标准浇口齿轮驱动的提高效率

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摘要

A reasonably accurate estimation of gear power loss is desirable to maximize gear performance. The load share by teeth pair, contact stress, sliding speed, elastohydrodynamic film thickness and coefficient of friction are some of the most important contributing factors which determine frictional power losses in gears. This paper presents an improvement concept to minimize the load-related power losses (sliding and rolling power losses), which will lead to an enhancement in gear efficiency by selection of non-standard gears. The tooth thickness at the pitch circle of the pinion and gear is different in non-standard gears (k(p)pi m > 0.57 pi m and k(g)pi m < 0.57 pi m), whereas it is equal in standard gears (k(p)pi m = k(g)pi m = 0.5 pi m). In this work, the load share-based frictional power loss and the respective mechanical efficiency have been determined for comparative performance of standard and non-standard gears. Finally, the influence of various gear and drive parameters such as gear ratio, pressure angle pinion teeth number and addendum height factor on gear efficiency has also been investigated and the results of the parametric study are discussed.
机译：可合理地精确地估计齿轮功率损耗来最大化齿轮性能。齿对的负载份额，接触应力，滑动速度，弹性流体动力学膜厚度和摩擦系数是最重要的贡献因素，这些因素决定齿轮中的摩擦力损失。本文提出了一种改进概念，可最大限度地减少负载相关的功率损耗（滑动和滚动功率损耗），这将通过选择非标准齿轮来导致齿轮效率的增强。小齿轮和齿轮的俯仰圆上的齿厚度在非标准齿轮（k（p）pi m> 0.57 pi m和k（g）pi m <0.57 pi m）中不同，而标准齿轮等于标准齿轮（k（p）pi m = k（g）pi m = 0.5 pi m）。在这项工作中，已经确定了基于负载份额的摩擦力损耗和各自的机械效率，用于标准和非标准齿轮的比较性能。最后，还研究了各种齿轮和驱动参数，例如齿轮比，压力角小齿齿数和附加型高度因子对齿轮效率的影响，并讨论了参数研究的结果。

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