Application of Mathematical Simulation Methods When Selecting Optimum Parameters of Stock Inlet Systems of Paper and Board Machines

Summary 1 Aim function formulation is given and criterion of optimum stock inlet process control is chosen. 2 Mathematical stock inlet process model is represented with nonlinear differential equation system with variable coefficients. It concerns the whole stock inlet system and also the stock feeding system, pipelines, stock flowmeter, inlet chamber and so on. 3 After model linearization and grounding connected with it idealization computerized calculation methods of stock inlet system design are worked out. It allows to increase dynamical stock flow stability during inlet without control systems. 4 The further increase of dynamical stock flow stability is ensured with feedback control. During computerized investigation transition processes in control system variants the peculiarities of different control systems are found.