Abstract Considering the factors that restrict the force of the nonlinear spring of the hydraulic cylinder of the four-high mill, the vibration absorber control device is introduced to establish the dynamic model of the rolling mill system with the vibration absorber of the mill. The optimum damping coefficient and stiffness coefficient of the absorber are obtained, through optimizating the basic parameters of the vibration absorber of rolling mill. Simulation analysis of the influence of different mass, spring force and friction force on the amplitude frequency characteristic curve of roll system, the optimal quality of the vibration absorber of rolling mill can effectively improve the stability of the system, the optimal spring force of the vibration absorber of rolling mill can reduce the unstable region of the system, the optimum friction force of the vibration absorber of a rolling mill can effectively reduce the height of the amplitude frequency characteristic curve, the theoretical support is provided for the effective suppression of vertical vibration of rolling mill roll system.
LIU Bin,JIANG Jia-lei,PAN Gui-xiang, et al. Optimization of Parameters of Vibration Absorber of Rolling Mill System under the Nonlinear Spring Force of Hydraulic Cylinder[J]. Acta Metrologica Sinica, 2019, 40(3): 378-384.
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2019, Vol. 40 
