粗糙度(岩土工程)
接触力学
材料科学
分形
表面粗糙度
曲率
刚度
机械
分形维数
接触面积
表面光洁度
曲面(拓扑)
接触分析
几何学
结构工程
有限元法
工程类
物理
复合材料
数学
数学分析
作者
Guangbin Yu,Hancheng Mao,Lidong Jiang,Wei Liu,Tupolev Valerii
摘要
Understanding the contact mechanics of rough tooth surfaces is critical in order to understand phenomena such as tooth surface flash temperature, tooth surface wear, and gear vibration. In this paper, the contact behavior between the meshing tooth surfaces of beveloid gear pairs with elliptical asperities is the focus. The contact area distribution function of the elliptical asperity was proposed for the point contact of curved surfaces by transforming the elastic contact problem between gear meshing surfaces into the contact between elastic curved surfaces with an arbitrary radius of curvature. In addition, a fractal contact mechanics model for the rough surface of a beveloid gear with elliptical asperities was established. The influence of tooth surface topography on the contact load and contact stiffness under different fractal parameters was investigated, and the results demonstrated that the real contact load and the contact stiffness of curved surfaces increase with the increase in the fractal dimension D and the contact coefficient λ. Conversely, the real contact load and normal contact stiffness decrease with the increase in the fractal roughness G and eccentricity e.
科研通智能强力驱动
Strongly Powered by AbleSci AI