【摘要】 给出有关粗糙表面单个微凸体接触点面积科的概率分布密度的推导过程。该概率分布密度适用于机械加工粗糙表面,不管磨削、铣削、车削表面都满足此概率分布密度的关系式。按照整体柔性结合面的结构函数,提出具体计算分形维数、分形粗糙度的方法。对文献[1]的理论计算和分析进行定量实验佐证。实验佐证显示:在一定法向加载重物的条件下,理论静摩擦系数和实验的绝对误差在-0.033 02~0.019 26之间,理论静摩擦系数和实验的相对误差在-8.323%~5.512%之间。更多还原

【Abstract】 The probability distribution density associated with an individual asperity contact spot area on a certain rough surface was derived in detail.The probability distribution density was applicable for mechanical processing of rough surfaces in spite of grinding,milling and turning.The approach of computing fractal dimension and fractal roughness was proposed according to the structure function of a whole flexible joint surface.The theoretical computation and analysis in reference[1]were validated quantitatively and experimentally.The experimental proof showed that under the condition of a certain normal loading,the absolute error between the theoretical static friction coefficients and experimental ones varies from-0.03302 to 0.01926,and the relative error between them fluctuates from-8.323%to 5.512%.更多还原