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在现代工业领域中异型钢煤斗的使用逐渐增多,但其受力比一般规则煤斗复杂。应用有限元软件对其进行分析,采用不同精细程度的网格划分得出的结果不同。通过在ANSYS中Power和Full两种模式显示下,对不同网格划分下的结果的差异进行比较,找出合理的网格划分方法。在线弹性分析的基础上考虑材料非线性,进一步论证结果,并研究增大加劲肋的截面尺寸对异型钢煤斗受力性能的影响。研究表明,增加加劲肋的截面高度对异型钢煤斗的受力性能的改善效果比增加加劲肋的截面宽度效果更加明显。
In the modern industry, the use of special-shaped steel coal hopper gradually increased, but the mechanical stress than the general rules of the coal bucket complex. The finite element software is used to analyze it, and the result of the meshing with different granularity is different. Through the display of Power and Full modes in ANSYS, the differences between the results of different meshing are compared to find a reasonable meshing method. On the basis of the on-line elastic analysis, the material nonlinearity is considered, and the results are further demonstrated. The effect of increasing the cross-sectional dimension of the stiffener on the mechanical properties of the coal-fired coal bar is also studied. The research shows that the effect of increasing the section height of the stiffener on the stress performance of the profiled steel coal bucket is more obvious than that of increasing the section width of the stiffener.