摘要
在机械结合面切向接触刚度分形模型的基础上,结合两圆柱体接触强度分形模型,建立了齿轮结合面的切向接触刚度分形计算模型。该模型综合考虑齿轮接触面的微观特性和宏观特性,其计算结果与测量仪器的分辨率无关,具有尺度独立性。仿真结果显示:齿轮结合面的切向接触刚度与分形维数、材料的特性参数、齿轮的齿数成正比,与粗糙度幅值成反比。
On the basis of fractal model of tangential contact stiffness of joint surfaces,and combining with the fractal model of two cylinders＇ contact stress,calculating fractal model of tangential contact stiffness of gear joint surfaces was set up.This model synthetically considered the microcosmic characters and macroscopical factors of gear joint surfaces,and the results by the model showed no relationship with the resolving ability of the instruments and dimension independency.Simulation results indicated that the tangential contact stiffness was proportional to fractal dimension,material properties parameters and the number of gear teeth,and inversely proportional to roughness amplitude.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2011年第2期203-206,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金资助项目(51075111)
"十一五"国家科技支撑计划资助项目(2009BAG12B03)
安徽省优秀青年人才基金资助项目(2011SQRL010)
合肥工业大学科学研究发展基金资助项目(2010HGXJ0137)
关键词
齿轮结合面
切向接触刚度
分形理论
接触模型
Gear joint surfaces
Tangential contact stiffness
Fractal theory
Contact model
