采煤机截齿截割阻力曲线分形特征研究  

Fractal characteristic study of shearer cutter cutting resistance curves

作　　者：刘春生[1] 

机构地区：[1]黑龙江科技学院机械工程系,黑龙江哈尔滨150027

出　　处：《煤炭学报》2004年第1期115-118,共4页Journal of China Coal Society

基　　金：黑龙江省国际科技合作重点攻关项目(WB01104)

摘　　要：基于分形理论,给出了分形特征的一般形式及其计算方法———非闭合分形曲线长度与围成面积的估算模型和盒维数的算法.在盒维数计算中,提出了覆盖曲线盒子总数的累加算法,并明确给出了评价截割阻力曲线的分形维数等特征量的实际物理含义.On the basis of the fractal theory, general form and calculation method of the fractal characteristic are given, that is the calculation model of non-close fractal curve length and closed area, and box counting dimension algorithm. During calculating box counting dimension, accumulation algorithm of covering curve box total is presented. It gives definite fractal dimension feature quantum fact physical meanings of estimation cutting resistance curves.

关 键 词：采煤机截齿 截割曲线 分形特征 盒维数 

分 类 号：TD421.61[矿业工程—矿山机电]