Research On Analysis Of Transient Behavior And Simulation Of Virtual Prototype For Square Plansifter

The square plansifter is widely used in the grain and edible oil mills due to its characteristics of smooth operation, small power consumption, compact structure, large sifting area and high efficiency. It is mainly used for grading and extracting the flour. Presently some research has done such as the finite element analysis, the process of starting and shutdown, the optimal design of the centrifugal weight and the improvement of the structure and process.Presently the dynamic equation of the square plansifter is established based on the model of the independent mechanical system, that is, assuming the angular acceleration of the centrifugal weight is constant during the startup process; but the starting angular acceleration is mainly determined by the transient process of the motor load starting, so in order to obtain more precise system dynamics, the mathematical model of electromechanical coupling system should be established .In view of such problems, some research was carried out in this paper. The main achievements were as follows:1.The mathematical model of electromechanical coupling for a square plansifter was built, and its dynamic equations are derived. It provides reference for other mechanical system.2.Application of ADAMS and MATLAB simulation of their joint, according to the co-simulation results, the substance of transient behavior of the square plansifter is unveiled; it provided better reference to obtain dynamics of the system.3.Effects of the change of the boom length on the resonance amplitude of the body, the dynamic load transfering foundation, the electromagnetic torque and the current is large, but not large on the stable amplitude. The length of the boom (1.9~2.1) m is obtained.