Generalized model of a single-coil synchronous impact electromagnetic machine

Abstract

Development of modern methods of electromechanical systems analysis and synthesis inclu-ding impact ones requires the improvement of their dynamical models. The description of the generalized dynamical model of a single-coil synchronous impact electromagnetic machine (SCSIEM) that combines different methods of implementation of reciprocated motion of the striker impact mass is presented. The electromagnetic impact unit considered as a research subject is powered from a 50 Hz power source. It consists of the linear electromagnetic motor and the multimass mechanical oscillatory system periodically interacting with a deformed medium. The investigation is of current importance, because it is necessary to improve and extend the dynamic design procedure when the complex problem of analysis and synthesis of SCSIEM scheme variants is solved. The generalized model is based on the differential equations of the electrical ba-lance and mechanical interaction of traveling inertial masses linked by spring linkages derived by the Lagrange method. An example of the dynamical model based on the generalized one is considered for a three-mass SCSIEM with striker two-side free running-out powered from 50 Hz power supply trough a half-period rectifier. Working time for creation of dynamical design mo-dels for different variants of SCSIEM can be decreased.