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전성재(S. J. Jun),강인혁(I. H. Kang),조연상(Y. S. Cho),박흥식(H. S. Park),전태옥(T. O. Jun) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.4
Generally, Oxidized film are generated by friction and wear in lubricant oil. It is effect that the heat and pressure act on contact area. Because the electrons movement progress the oxidization, if the electrons movement be regulated, the thickness of oxidized film can be regulated and wear characteristics can improve. But, electronic current can deteriorate the friction characteristic, so various characteristics must be investigated on transforming of electronic current. Therefor, using the Norton equation, short current were transformed between ball and disk. Also, an experiment was carried out on friction and wear with ball on disk type tester. So, we studied up on effect of current for friction characteristics.
류미라(M.R Ryu),배효준(H.J Bae),이상재(S.J Lee),박흥식(H.S Park),전태옥(T.O Jun) 한국트라이볼로지학회 2003 한국트라이볼로지학회 학술대회 Vol.36 No.-
We measure generally mean frictional coefficient in order to know the moving state of lubricated machine. If correct analysis of frictional coefficient on working condition for lubricated machine can be possible, it can be effect on diagnosis of lubricated machine. But mean frictional coefficient of it is progressed always unstably with a large amplitude. In this case, it is difficult of measuring the correct frictional coefficient. The purpose of this study is, carried out to get the working condition with a minimum frictional coefficient of hydraulic actuator materials using statistical techniques.