PEEK摩擦信号分形维数与表面形貌相关性试验研究

中国机械工程 ›› 2011, Vol. 22 ›› Issue (14): 1715-1719.

PEEK摩擦信号分形维数与表面形貌相关性试验研究

李超;焦瑜;张静;赵嫚

兰州理工大学,兰州,730050

出版日期:2011-07-25 发布日期:2011-07-28
基金资助:
国家自然科学基金资助项目(50975132)；兰州理工大学博士基金资助项目(BS05200906)
National Natural Science Foundation of China（No. 50975132）

Research on Correlation of Friction Signals and Surface Topography of PEEK

Li Chao;Jiao Yu;Zhang Jing;Zhao Man

Lanzhou University of Technology,Lanzhou,730050

Online:2011-07-25 Published:2011-07-28
Supported by:
National Natural Science Foundation of China（No. 50975132）

摘要/Abstract

摘要：

为研究聚醚醚酮树脂/球墨铸铁摩擦副磨合初期摩擦信号分形维数与聚醚醚酮初始表面形貌分形维数的相关性,在UMT-3MT摩擦磨损试验机上对聚醚醚酮树脂/球墨铸铁摩擦副进行了摩擦磨损试验，运用结构函数测度法对初始表面形貌、摩擦力信号、摩擦因数信号进行了分形表征，计算得到了不同载荷下的分形维数。研究结果表明，聚醚醚酮初始表面和摩擦信号均具有显著的分形特征;在相同速度、相同初始表面下，摩擦信号的分形维数随着载荷的增大而增大;在相同速度、不同载荷下，磨合初期摩擦信号的分形维数均与初始表面分形维数负相关。

关键词:

聚醚醚酮树脂/球墨铸铁, 表面形貌, 摩擦力, 摩擦因数, 分形维数, 结构函数

Abstract:

In order to investigate the correlation of friction force and coefficient signals of PEEK/QT400 and initial surface topography of PEEK,friction and wear tests of PEEK/QT400 were carried out on an UMT-3MT wear tester with same velocity and different loads.The fractal behaviors of initial surfaces topography and friction signals were studied with fractal theory and the fractal dimension of them were calculated using structure function measurement method.Results show that the initial surface of PEEK and friction signals both have obvious fractal characteristics,under the same velocity and same initial surface,the value of fractal dimension increases with the increases of contact load,and under the same velocity and different loads,friction signals of preliminary

running-in stage and initial surfaces of PEEK are both positive correlations.

Key words:

PEEK(poly (ether-ether-ketone))/QT400, surface topography, friction force, friction coefficient, fractal dimension, structure function

中图分类号:

TH117.2

李超, 焦瑜, 张静, 赵嫚.

PEEK摩擦信号分形维数与表面形貌相关性试验研究

[J]. 中国机械工程, 2011, 22(14): 1715-1719.

LI Chao, JIAO Yu, ZHANG Jing, DIAO Man.

Research on Correlation of Friction Signals and Surface Topography of PEEK

[J]. China Mechanical Engineering, 2011, 22(14): 1715-1719.

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