%0 Journal Article
%T Study on Single Fractal and Multifractal of Frictional Forces in the Running-in Process<br>磨合过程摩擦力单重分形和多重分形的研究
%A LI Guo-bin
%A GUAN De-lin
%A WEI Hai-jun
%A <br>李国宾
%A 关德林
%A 魏海军
%J 摩擦学学报
%D 2006
%I 
%X Running-in and wear tests of a piston ring against a cylinder were conducted on a pin-on-disc tester, lubricated by both of CD40 lubricant and CD40 lubricant with additive. The sequence signals of the friction force were collected. The fractal behavior of the frictional forces was studied by means of fractal dimension and muhifractal spectrum. The sequence signals of the friction force are characterized by fractal, and the fractal dimension and muhifractal spectrum of the signals assume a regular variation in the running-in process. The variation of fractal dimension is coincident with the evolution of surface roughness, and the muhifractal spectrum can be used to describe dynamic process of friction surface. Therefore the quantitative analysis of running-in process can be carried out by fractal dimension and muhifractal spectrum of the sequence signals of the friction force.
%K running-in wear
%K frictional force
%K fractal dimension
%K muhifractal spectrum
%K quantitative analysis<br>磨合磨损
%K 摩擦力
%K 分形维数
%K 多重分形谱
%K 定量分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=2F467A5C6371C830162AAA01D7DAD07A&aid=B5A54A9B67CF6C8A&yid=37904DC365DD7266&vid=96C778EE049EE47D&iid=94C357A881DFC066&sid=98494933359B55EC&eid=DCE57F652E4ADAFC&journal_id=1004-0595&journal_name=摩擦学学报&referenced_num=9&reference_num=12