带式输送机重型滚筒的非线性有限元分析

Nonlinear FEA on heavy pulley of belt conveyor

介绍了带式输送机驱动滚筒的一种新的非线性有限元分析方法,利用APDL在ANSYS环境中建立滚筒有限元模型,在复杂组合载荷以及大转矩载荷下对其进行分析,并与传统分析方法进行比较。结果表明,危险点位于轮毂内径以及轮毂和轮辐之间的焊缝上;同时计算两种分析方法的相对误差,经比较显示,新方法的相对误差明显小于传统方法,说明新方法分析精度较高,而且所描述的载荷施加方式也更符合实际工作过程,分析结果更加准确、可靠。

The paper introduced a new nonlinear FEA method for the drive pulley of the belt conveyor, and used APDL to build the finite element model of the pulley in ANSYS. And then, it analyzed the pulley at complex combined load and huge torque, and carried out contrast with traditional analysis method. The results showed the dangerous point was located at the inner diameter of hub and the weld seam between the hub and the spoke. Calculated relative error of the two analysis methods showed the relative error of the new method was less than that of the traditional method, which indicated the new method possessed the higher analysis precision and the applied load imposing mode was more accordant with actual operation, thus the analysis results was more accurate and reliable.