摘要
现代齿轮对高功率密度、长寿命、高可靠性的要求迫切需要对齿面接触与疲劳行为进行深入研究。提出了一种先进的齿轮接触数值模型,可以考虑非牛顿润滑流体、齿面冠状修形、齿面几何运动学参数、工况、涂层材料等因素对齿面接触压力、齿面摩擦、油膜厚度及次表面应力的影响。该模型不仅为开发国产齿轮设计分析软件提供支撑,同时也可配合试验验证,为提高工程实际中的齿轮寿命与可靠性提供参考。
Due to the urgent requirement of modern gear drives with high load capacity,long service life and high reliability,the gear tooth surface contact behaviour and contact fatigue behaviour are studied thoroughly. An advanced numerical model of gear contact is proposed in which the non- Newtonian lubricant,the tooth crowning modification,the variation of the gear geometry parameters,the working conditions as well as the tooth surface coating are taken into account. The effect of those factors on tooth surface contact pressure,tooth friction,film thickness and the stress of the substrate can be studied based upon this model. The proposed numerical model can not only provide a technical support for the developing of domestic design softwares of gear drives,but also it can be used for the improvement of the service lives and the reliabilities of gears after the validation with experimental results.
出处
《机械传动》
CSCD
北大核心
2014年第10期62-66,共5页
Journal of Mechanical Transmission
基金
国家自然科学基金(51405042
51405043)
重庆市基础与前沿研究计划项目(cstc2014jcyjA0128)
教育部留学回国人员科研启动基金
关键词
齿轮接触
齿面粗糙度
弹流润滑
影响系数
涂层
Gear contact
Tooth surface roughness
EHL
Influence coefficient
Coating
