MODELING OF A CONTROLLED ELECTROMAGNETIC VIBRATION DRIVE WITH A VARIABLE RESONANT FREQUENCY

The technology for the production of high-quality concrete products includes vibration mixture at various frequencies. For this, an electromagnetic drive can be used, which has high reliability, durability and controllability. its effective application, it is necessary to adjust resonance frequency oscillating system in order ensure near-resonance mode operation different This possible by using devices with adjustable stiffness, particular, controlled dynamic absorbers nonlinear elastic elements. In article electromagnetic, electromechanical, mechanical, energy processes a system, vibrator absorber conical springs, stiffness regulated compression press, have been investigated. Using circle-field method, mathematical simulation model electromechanical developed. this purpose, numerical calculations magnetic field performed and, based on obtained results, functional dependences between force, flux, magnetomotive force size air gap determined. A mechanics press control also built models were combined into general Simulink environment, means time diagrams obtained. modeling results show that provides smooth transition from one another while maintaining specified amplitude working body oscillations efficiency. References 12, figures 10, tables 3.