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为探寻双滚筒式采煤机在不同工况下各滑靴受力的变化规律,分析整机受力状态与数学模型结构的关系,改善采煤机整机受力状态,建立采煤机整机受力的数学模型,并预先给出模型状态判断,基于最小二乘原理和广义逆,利用matlab编制计算程序,解算出不同工况下各滑靴受力的最佳逼近值,得到了煤层倾角和仰(俯)角变化对滑靴受力变化的影响曲线.结果表明:所建模型可以反映生产实际中各滑靴受力情况,利用最小二乘原理解算采煤机不相容奇异力学模型的方法有效,得到外负载与各滑靴受力的平衡变化规律.
In order to find out the variation regularity of the force of sliding shoes of double drum shearer under different operating conditions, the relationship between the mechanical state of the whole machine and the structure of the mathematical model is analyzed to improve the mechanical state of the entire shearer, Based on least-squares principle and generalized inverse, the matlab programming is used to calculate the optimal approximation value of each sliding shoe under different working conditions, and the coal seam is obtained The results show that the model can reflect the force of each shoe in the actual production and solve the incompatible singularities of shearer with least square principle The method of mechanical model is effective, and the law of the balance between the external load and each sliding shoe is obtained.