大型宽厚板轧机十字万向节疲劳寿命分析
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摘要
以国内某大型宽厚板轧机主传动系统十字万向节为研究对象,在材料的应变疲劳寿命特性曲线基础上,利用修正Neuber法的局部应力应变法进行材料的疲劳寿命估算,用数值模拟的方法求得十字万向节的疲劳寿命,并与现场实际使用情况对比,验证计算方法的有效性。
Taking cross universal joint of main transmission system for a certain heavy wide and thick sized plate mill in domestic as research object,and based on strain fatigue life characteristics curve of the material,modified Neuber local stress stain method has been applied to estimate material fatigue life and numerical simulation has worked out fatigue life of cross universal joint. The result has been compared with practical situation at work site to verify calculation efficiency.
Taking cross universal joint of main transmission system for a certain heavy wide and thick sized plate mill in domestic as research object,and based on strain fatigue life characteristics curve of the material,modified Neuber local stress stain method has been applied to estimate material fatigue life and numerical simulation has worked out fatigue life of cross universal joint. The result has been compared with practical situation at work site to verify calculation efficiency.
引文
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[2]张忠健.间隙冲击对轧机主传动系统扭振影响的研究[D].燕山大学,2012.
[3]李明轩,苏小平.轧机传动系统关键零部件疲劳仿真方法研究[J].机械设计与制造,2015(5):215-219.
[4]刘海生.CVC轧机主传动万向接轴叉头有限元分析及优化[J].机械设计与制造,2012(1):33-35.
[5]Sun J L,Peng Y,Liu H M,et al.Free transverse vibration of rolls for four-high mill[J].Journal of Central South University,2009,40(2):429-435.
[6]关丽坤,刘伟栋,王宁宁.实测载荷下万向联轴器叉头疲劳寿命分析[J].机械设计与制造,2014(1):131-133.