基于有限元的轴孔耳板强度计算研究

Research on Strength Calculation of Plate-type Lifting Lug Based on Finite Element Method

针对轴孔耳板水平截面强度计算公式精度低的问题,建立矩形界面模型和有限元模型,以有限元结果为评价指标,分析不同耳板强度计算方法的误差。依据工程经验选择9种载荷耳板,对比不同计算方法得出水平截面应力和平均安全系数,发现弹性曲梁公式计算结果更接近有限元分析值。

Aiming at the problem of low accuracy of horizontal cross-section strength calculation formula of plate-type lifting lug,rectangular interface model and finite element model are established to analyze the errors of different plate-type lifting lug strength calculation methods by taking results of finite element analysis as the evaluation indicator.Based on the engineering experience,9 types of plate-type loading lifting lugs are selected for comparison of different calculation methods and obtained horizontal cross-sectional stresses and average safety coefficients,it is found that the results of the elastic curved beam formula are closer to the values of finite element analysis.