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《Journal of Chongqing University of Technology(Natural Science)》 2015-11
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Axis Track Analysis on Oil Whirl and Oil Oscillation Based on Fractal Box Counting Dimension

HU Dao-da;MA Zhen-li;SHI Wen-kai;The Production Brigade of Graduate Student Management,Logistics Engineering University of PLA;  
The paper simulated four working conditions of sliding bearing in the rotor platform,which includes regular work condition,resonance condition,oil whirl condition and oil oscillation condition.According to the fractal characteristics of vibration signal,the fractal box counting dimension of experimental data so groups about four working conditions was calculated. The results show that the axis track under regular working and resonance condition is ellipse or roundness,and the fractal box counting dimensions of which vary from 1. 032 7 to 1. 193 8 and 1. 101 1 to 1. 174 0,so their results are not distinguished and that the axis track under oil whirl condition and oil oscillation condition are greatcircle of small round and irregular shape,and the fractal box counting dimensions of which vary from1. 220 3 to 1. 350 5 and 1. 380 4 to 1. 541 7,so their results can be distinguished easily. So the fractal box counting dimension can be used as fault characteristic quantity of oil whirl condition and oil oscillation and they can be distinguished by dividing box counting dimension interval.
【Fund】: 中国人民解放军总后勤部基金(YX214J038)
【CateGory Index】: TH133.3
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