农业机械学报2013，Vol.44Issue(3)：257-266,10.DOI:10.6041/j.issn.1000-1298.2013.03.046
基于各向异性分形理论的结合面切向刚度改进模型
Improved Model of Tangential Stiffness for Joint Interface Using Anisotropic Fractal Theory
摘要
Abstract
An improved model of tangential contact stiffness for joint interface was put forward by using anisotropic fractal geometric theory. Numerical simulation was executed to visually attain the complex nonlinear relationships between joint interface tangential contact stiffness and normal load, tangential load, fractal dimension D, fractal roughness G, relating factor K and material property Φ. The numerical simulation results indicate that the joint interface tangential contact stiffness increases with increasing normal load, relating factor K or material property Φ, but decreases with increasing tangential load or fractal roughness. When fractal dimension is smaller, the joint interface tangential contact stiffness increases as fractal dimension increases. However, when fractal dimension becomes larger, the joint interface tangential contact stiffness decreases as fractal dimension increases.关键词
结合面/法向接触载荷/切向接触刚度/各向异性/分形几何理论Key words
Joint interface/Normal contact load/Tangential contact stiffness/Anisotropy/Fractal geometric theory分类
机械制造引用本文复制引用
田红亮,赵春华,方子帆,朱大林,李响,毛宽民..基于各向异性分形理论的结合面切向刚度改进模型[J].农业机械学报,2013,44(3):257-266,10.基金项目
国家自然科学基金资助项目(51275273、51075234、50975104)、水电机械设备设计与维护湖北省重点实验室开放基金资助项目(2012KJX07)和三峡大学博士科研启动基金资助项目(KJ2012B013、KJ2012B015) （51275273、51075234、50975104）
