田红亮,刘芙蓉,方子帆,赵春华,朱大林,张发军.结合部静摩擦因数修正与定量实验验证[J].农业机械学报,2013,44(10):282-293.
Tian Hongliang,Liu Furong,Fang Zifan,Zhao Chunhua,Zhu Dalin,Zhang Fajun.Correction of Static Friction Coefficient for Joint Interface and Quantitative Test Confirmation[J].Transactions of the Chinese Society for Agricultural Machinery,2013,44(10):282-293.
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结合部静摩擦因数修正与定量实验验证   [下载全文]
Correction of Static Friction Coefficient for Joint Interface and Quantitative Test Confirmation   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2013.10.046
中文关键词:  结合部  静摩擦因数  单重分形  自相关函数  离散功率谱  连续功率谱  结构函数
基金项目:国家自然科学基金资助项目(51275273、51075234)和三峡大学博士科研启动基金资助项目(KJ2012B013)
作者单位
田红亮 三峡大学 
刘芙蓉 三峡大学 
方子帆 三峡大学 
赵春华 三峡大学 
朱大林 三峡大学 
张发军 三峡大学 
中文摘要:根据结构函数给出了分形维数、分形粗糙度的严密解析解,修正结合部静摩擦因数相关公式。编写求解域扩展因子的通用Matlab程序,详细推导自相关函数、功率谱密度函数和结构函数的精确解析解。以YK31320型普通滚齿机上的结合部为研究对象,以液体静压导轨的实验结果为基准,对结合部静摩擦因数的理论解进行定量验证。验证结果表明:理论静摩擦因数与实验的绝对误差在-0.04502~0.00966之间,理论静摩擦因数与实验的相对误差在-30.78%~9.762%之间。
Tian Hongliang  Liu Furong  Fang Zifan  Zhao Chunhua  Zhu Dalin  Zhang Fajun
China Three Gorges University;China Three Gorges University;China Three Gorges University;China Three Gorges University;China Three Gorges University;China Three Gorges University
Key Words:Joint interface  Static friction coefficient  Single fractal  Autocorrelation function  Discrete power spectrum  Continuous power spectrum  Structure function
Abstract:The exact analytical solutions to fractal dimension and fractal roughness were put forward through structure function. Some formulas relating to static friction coefficient in joint interface were revised. A universal Matlab program was compiled to attain the domain extension factor. The rigorous analytical expressions for the autocorrelation function, power spectrum density function and structure function were given in detail. Taking a joint interface for example in YK31320 common gear-hobbing machine according to the experimental findings about hydrostatic guideway, the theoretical solution for static friction coefficient in joint interface was quantitatively confirmed. The confirmation results showed that the absolute windage between the theoretical static friction coefficients and the experimental ones fluctuated from -0.04502 to 0.00966, while the relative error between them distributed from-30.78% to 9.762%. 

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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