单自由度刨煤机动力学模型的建立与仿真研究

振动与冲击 ›› 2009, Vol. 28 ›› Issue (2) : 191-195.

论文

康晓敏李贵轩

作者信息 +

STUDY ON SINGLE-DEGREE-OF-FREEDOM DYNAMICMODEL OF COAL PLOUGH AND SIMULATION

KANG Xiaomin LI Guixuan

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文章历史 +

摘要

根据刨煤机运行的工况，考虑煤给予刨头的刨削阻力为随机变化的量，建立了刨煤机单自由度非线性随机动力学模型，同时考虑了刨链预紧力、多边形效应因素的影响。并以某参数为实例利用MATLAB/Simulink进行数值求解和仿真，得到了各因素影响下刨头速度和刨链张力的变化。研究结果表明随机刨削阻力和刨链预紧力对刨头速度和刨链张力变化影响较明显，链轮多边形效应则影响较小。本研究为分析刨煤机运行和刨链可靠性提供依据。

Abstract

According to work conditions of coal plough, considering stochastic cutting resistance by coal, single-degree-of-freedom nonlinear stochastic dynamic model of coal plough is presented , at the same time considering chain pretension and polygon effect. With certain parameters MATLAB/Simulink is used to get numerical solution and simulation. Each factor effect on the change of plough body velocity and chain tension is found. It indicates that cutting resistance and chain pretension have significant effects on plough body velocity and chain tension, and polygon effect of sprocket is smaller。It provides references for coal plough working and the reliability of chain.

导出引用

康晓敏李贵轩. 单自由度刨煤机动力学模型的建立与仿真研究[J]. 振动与冲击, 2009, 28(2): 191-195

KANG Xiaomin LI Guixuan. STUDY ON SINGLE-DEGREE-OF-FREEDOM DYNAMICMODEL OF COAL PLOUGH AND SIMULATION[J]. Journal of Vibration and Shock, 2009, 28(2): 191-195