基于双滚筒优化模型的采煤机运动参数优化

中文摘要: 目前大多数研究采煤机运动参数优化问题时，普遍采用仅包含1个牵引速度和1个滚筒转速的单滚筒优化模型，但由于双滚筒采煤机两侧滚筒受力情况及截割状态不完全相同，由单滚筒模型所得结果并不完全适用于双滚筒采煤机。作者以某型双滚筒采煤机为研究对象，以牵引速度和左、右滚筒转速3个运动参数作为设计变量，建立了双滚筒运动参数优化模型；利用遗传算法（GA）对双滚筒采煤机运动参数进行优化，并将最优参数下的截割性能与工业参数下的截割性能进行了对比，结果表明最优运动参数下的截割性能更优；对单、双滚筒两种优化模型下的优化结果进行了对比分析，结果显示双滚筒模型优化后的综合截割性能较单滚筒模型优化提高了16.35%，表明双滚筒优化模型下的截割表现更优。
Abstract:The traditional single-drum optimization model,which only contains the haulage speed and the rotational speed,has been widely used in motion parameter optimization of shearer in academic area.However,the single-drum optimization model cannot totally suits the stress difference between the left drum and the right drum,which leads to the optimized results are not completely applicable to the double-drum shearer.For this sake,a double-drum shearer was taken as the research subject.The double-drum optimization model was proposed whose design variables were the rotational speed of left drum,the rotational speed of right drum and the haulage speed.The motion parameters of the double-drum shearer were optimized by genetic algorithm (GA).The comparison results showed the double-drum shearer with the optimal motion parameters has better cutting performance than that of the industrial application parameters.Further comparison between the optimization results of the double-drum optimization model and that of the single-drum optimization model showed an enhancement of 16.42% in the cutting performance.Thus,the double-drum optimization model is more effective than the traditional single-drum optimization model.