Developing a Mathematical Model of a Horizontal Looper Taking into Account the Features of a Steel Strip

Modern cold rolling mills include devices that form a reserve of strip to ensure the continuous operation of the line. Such devices include a horizontal looper containing a direct current drive. The disadvantage of the existing horizontal looper is significant oscillations of the metal strip in the process of its filling, with the maximum amplitude of oscillations occurring when the strip is completely filled. To study the oscillatory processes in the strip, a model of an electromechanical system has been developed. The necessity of taking into account mechanical properties of the steel strip in the development of a model of an electromechanical system has been substantiated. Mathematical and simulation models of a horizontal looper were developed in two extreme positions. The simulation models have been implemented in the MatLab software package. The results of simulation studies showed satisfactory convergence of the experiments with the physical process.

[1]  Maria Augusta Neto,et al.  Active vibration control of spatial flexible multibody systems , 2013 .

[2]  Iosif Breido,et al.  The Modernization of the Multimotor Electric Drives , 2016 .

[3]  Van Khang Nguyen,et al.  Linearization and parametric vibration analysis of some applied problems in multibody systems , 2009 .

[4]  Alexey A. Bobtsov,et al.  Nonlinear dynamics of drives with elasticities and friction , 2012 .

[5]  E. V. Belousov,et al.  An electrical feed drive-control system for a cold reducing mill , 2017 .

[6]  Radu-Emil Precup,et al.  Linear and fuzzy control solutions for tape drives , 2008 .

[7]  O. F. Opeiko.  Control of an electric drive for a continuous material processing unit , 2009 .

[8]  G. A. Sorokin,et al.  Damping of vibrations in the primary drives of cold-rolling mills , 2016, Steel in Translation.

[9]  Selçuk Erkaya,et al.  Determining power consumption using neural model in multibody systems with clearance and flexible joints , 2019, Multibody System Dynamics.

[10]  John McPhee,et al.  A Comparison of Different Methods for Modelling Electromechanical Multibody Systems , 2004 .

[11]  V. P. Kazantsev,et al.  On the synthesis of discrete-continuous control systems with elastic-dissipative links for electric drives , 2012 .

[12]  M. P. Aghababa.  Fractional-calculus-based control scheme for dynamical systems with input uncertainty , 2019, Advances in Difference Equations.

[13]  Bao Rong,et al.  Theoretical modeling and numerical solution methods for flexible multibody system dynamics , 2019, Nonlinear Dynamics.

[14]  Jie Sun,et al.  Dynamic matrix predictive control for a hydraulic looper system in hot strip mills , 2017 .

[15]  Waldemar Wójcik,et al.  DEVELOPMENT OF SIMULATION MODEL OF STRIP PULL SELF-REGULATION SYSTEM IN DYNAMIC MODES IN A CONTINUOUS HOT GALVANIZING LINE , 2014 .

[16]  L. V. Gannel.  Built-in filters to suppress vibrations in a linear elastic electric drive on account of reduction in the effective mass , 2013 .

[17]  S. F. Yatsun,et al.  Investigation of motion of a mobile two-mass vibration-driven system , 2010 .