Analysis of rolling pressure transverse distribution by influence function method

Rolling pressure distribution directly affects the elastic deformation of rollers and the crown of delivery strip. The rolling force and the elastic deformation of rollers were computed with the influence function matrix method that is highly precise in calculation and fast in iterative convergence. The calculated rolling pressure fits the measured data well. By the method, rolling pressure transverse distribution with different bending forces and reduction ratios was studied. It is found that the rolling pressure distribution factor increases linearly as the bending force increases and decreases almost linearly as the reduction ratio increases. Therefore, the rolling pressure transverse distribution can be changed by adjusting bending forces and reduction ratio settings. The obtained results provide a good foundation for the on line fast computing of rolling pressure distribution functions and for the modeling of strip crown control.