辽宁工程技术大学学报（自然科学版）2011，Vol.30Issue(6)：888-891,4.DOI:21-1379/N.20111211.1207.004
采煤机滚筒截割复杂煤层的突变分析
Catastrophe analyses of complicated coal seam cut by shearer drum
摘要
Abstract
To investigate the load variations of shearer drum during its cut on complex coal seams, a cutting experiment had been conducted based on the constructed structure form of complex coal seams. The constitutive model of the cutting load was built according to the experiment loads, and the mechanical models of the coal seams with different structures were also built. In addition, the mechanical model of the drum cutting into the coal was built according to the actual working conditions underground; and the cusp catastrophe model of the cutting process was built based on catastrophe analysis. Therefore, the stiffness conditions and the energy conditions of the drum cutting into the complex coal seam were obtained. Analysis results indicate that the resistance stiffness of the coal seams should be higher than the stiffness of the shearer haulage system, otherwise the strong vibration will be occurred, and the drum and transmission system may be damaged; the required energy of the coal broken should be not greater than the energy release rate of the drum, or else the drum will be lockout, even the cutting motor is damaged.关键词
本构模型/突变理论/尖点突变模型/刚度条件/能量条件/复杂煤层:滚筒:采煤机Key words
constitutive model/catastrophe analysis/cusp catastrophe model/stiffness condition/energy condition/complicated coal seam/drum/shearer分类
矿业与冶金引用本文复制引用
崔新霞..采煤机滚筒截割复杂煤层的突变分析[J].辽宁工程技术大学学报（自然科学版）,2011,30(6):888-891,4.基金项目
江苏省博士后基金资助项目(1101106C),中国博士后特别资助项目(201104583),国家自然科学基金资助项目(51005232) （1101106C）
