摘要
采用了三维非线性有限元方法,建立了1780四辊轧机的全尺寸结构的精确三维有限元力学模型,计算了整个轧机的变形和刚度。研究结果表明,即使在理想状态下,机架操作侧和驱动侧也存在刚度差。轧机机架以及机上设备各部分对刚度的贡献比例不同,其中,轧辊辊系对刚度的影响比例最高,占到约50%。由于辊系容易因磨损和不平衡外载的作用而发生接触状态的改变,是造成两侧刚度差的主要原因。
The accurate three-dimensional finite element model of 1780 four high rolling mill is established by using the three-dimensional nonlinear finite element method.The deformation and stiffness of the whole rolling mill are calculated.The results show that,even in the ideal state,the stiffness difference exists between the operating side and the driving side of the frame.Among them,the roll system has the highest influence on the stiffness,accounting for about 50%.Because the roller system is easy to change the contact state due to wear and unbalanced external load,which is the main reason for the poor stiffness of both sides.
作者
吴索团
Wu Suotuan(Shanghai Meishan Iron and Steel Co.,Ltd.,Nanjing 210039)
出处
《冶金设备》
2020年第6期40-43,共4页
Metallurgical Equipment
关键词
四辊轧机
轧机刚度
有限元方法
接触
变形
Mill stand
Mill stiffness
Finite element method
Contact
Deformation
