摘要
为解决滚筒设计优化及不同工况下的极限速度截割问题,提出了一种基于LS-DYNA的非线性动力学仿真方法。通过在LS-DYNA中建立滚筒及煤岩模型,在设定煤层物理参数、滚筒牵引速度和转速的情况下对截割过程进行模拟,得到了滚筒瞬时整体受力、单个截齿的受力以及应力云图,并据此优化截齿布置、滚筒结构及预测该工况下采煤机最高牵引速度,为采煤机滚筒在实际工况下的研究提供了新思路。
In order to solve the problems of drum design optimization and limit speed cutting under different working conditions,a nonlinear dynamic simulation method based on LS-DYNA was proposed.Through the establishment of drum and coal rock model in LS-DYNA,the cutting process was simulated under the condition of setting coal seam physical parameters,drum traction speed and rotation speed.The instantaneous overall stress of drum,the stress of single pick and stress nephogram were obtained.Based on this,the pick layout and drum structure were optimized and the maximum traction speed of shearer under this condition was predicted,which could provide a new idea for the research of shearer drum under actual working conditions.
作者
黄秋来
HUANG Qiulai(Shanghai Branch, Tiandi Science & Technology Co., Ltd., Shanghai 200030, China)
出处
《煤矿机电》
2021年第2期18-20,23,共4页
Colliery Mechanical & Electrical Technology
基金
天地科技股份有限公司科技创新创业资金专项基金(2018-TD-QN034)。
