Calculation and Construction of Load Diagrams and Static Characteristics of Multi-Motor Electric Drive System Using Methods of Equivalent Forces and Reduced Moments

Abstract

This paper includes the calculations and construction of load diagrams and static characteristics of individual mechanisms of a mining combine, which form a combined multi-motor electric drive system, using methods of equivalent efforts and reduced moments. The operating forces of idle and on-load mechanisms are calculated, operation time intervals and a complete working cycle are determined. The load diagrams of mechanisms are constructed and their kinematic diagrams are designed. Based on the calculations made, asynchronous motors with a short-circuit rotor, which have the closest power values and are suitable in terms of voltage and operating mode, were selected from the catalogue. The gear reduction ratio is calculated, static resistance moments and operating speeds to the motor shaft are specified. The static characteristics of the most powerful electric motor of a mining combine - effector - are formulated.

Extensive teaching of physics for students of technical specialties with the help of experimental units and computer simulation software

“…Simulation in practice is understood as a relevant replacement of the technical device or process studied with an appropriate model and its subsequent study with known methods [10]. Indeed, the model is not an exact copy of an object or system, and simulation implies neglecting any processes occurring in reality [11]. However, simulation is widely applied to study basic processes.…”