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《Journal of Heilongjiang Institute of Science and Technology》 2009-06
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Chaotic fractal dimension and energy consumption of cutting resistance sequence in shearer

LIU Chunsheng,LI Degen(College of Mechanical Engineering,Heilongjiang Institute of Science and Technology,Harbin 150027,China)  
Aimed at a better evaluation of the performance of pick cutting,this paper,based on the experimental curve from the pick-shaped cutting resistance,introduces the application of the method of power spectrum to an qualitatively analysis of the chaotic characteristics,as when the shear is in the state of cutting,presents the relationship between chaos fractal dimension calculated from the sequence of cutting resistance and energy consumption and the yardstick of box dimension and introduces the use of MATLAB to the quantitative calculation of the box dimensions of the cutting resistance's time-series corresponding with the two different installation angles of the cutting picks.The result shows that the cutting picks installed at 45-degree angle give the box dimension and the energy consumption bigger than those done at angle of 40-degree.The box dimensions and the model of energy consumption,as described in the paper provide a new method for the theoretical research and design of drum shearers.
【Fund】: 黑龙江省国际科技合作重点项目(WB01104)
【CateGory Index】: TD421.61
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 LIU Chun-sheng (Heilongjiang Scientific and Technical Institute, Jixi 158105,China);Research on the installing angle of shearer pick-shaped cutter[J];Journal of Liaoning Technical University;2002-05
2 LIU Chun-sheng(Dept. of Mechanical Engineering, Heilongjiang Scientific and Technical Institute, Haerbin 150027,China);Fractal characteristic study of shearer cutter cutting resistance curves[J];Journal of China Coal Society;2004-01
【Secondary Citations】
Chinese Journal Full-text Database 4 Hits
1 Li Jie; Zhu Jinzhao; Zhu Qingke. College of Resources and Environment,Beijing For.Univ.,100083,P. R. China.;Review on methods of calculating fractal dimension.[J];Journal of Beijing Forestry University;2002-02
2 Li Xiaohuo; Yin Baifeng; Li Haibin (Mechanical Engineering College, Liaoning Technical University, Fuxin, China);Experimental Researches on Cutting with Concial Picks[J];JOURNAL OF LIAONING TECHNICAL UNIVERSITY (NATURAL SCIENCE EDITION);1999-06
3 LIU Chun-sheng (Heilongjiang Scientific and Technical Institute, Jixi 158105,China);Research on the installing angle of shearer pick-shaped cutter[J];Journal of Liaoning Technical University;2002-05
4 JIN Yi su 1,YUAN Bao min 2,YU Wan bo 2,WEI Xiao peng 2 (1.School of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China;2. School of Mechanical Engineering,Dalian University of Technology,Dalian Liaoning 116024,Chi;A Location Method of Vehicle-license-plate Based on Fractal Box Dimension[J];Application Research of Computers;2002-09
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