Modeling of the Loading-Unloading Contact of Two Cylindrical Rough Surfaces with Friction
Modeling of the Loading-Unloading Contact of Two Cylindrical Rough Surfaces with Friction
复制标题
两个圆柱粗糙表面摩擦加载与卸载接触的建模
DOI：
10.3390/app10030742
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发表时间：
2020-02-01
影响因子：
2.7
通讯作者：
Wang, Xiangyu
中科院分区：
文献类型：
--
作者：
Wang, Honghai;Jia, Peng;Wang, Xiangyu
提出了两个带摩擦的圆柱表面之间的加载-卸载过程的第一个分形模型。针对加载-卸载循环，推导了不同变形阶段的实际接触面积与接触载荷之间的非线性关系。讨论了模型中参数的影响。数值结果表明，对于给定的无量纲接触载荷，随着加载干涉和分形维数的增大、轮廓尺度参数和曲率半径的减小、或用外接触代替内接触，圆柱接触面加卸载过程的无因次真实接触面积以及加卸载过程的无因次真实接触面积之差均增大。
The first fractal model for the loading-unloading process between two cylindrical surfaces with friction is presented. The nonlinear relation between the real contact area and the contact load in different deformation stages are deduced for a load-unload cycle. The impacts of parameters in the model are discussed. The numerical results show that for a given dimensionless contact load, the dimensionless real contact area of the loading-unloading process of cylindrical contact surface with friction, as well as the differences of the dimensionless real contact area between the loading and unloading processes, increase with the increase of the loading interference and fractal dimension, decrease of the profile scaling parameter and curvature radius, or the substitution of external contact for internal contact.