On the choice of dynamic regimes for two-mass vibrating machine

In this paper the forced oscillations of the two-mass model of vibrating machine excited by inertial exciter driven by an electric drive of limited power are considered. For given mass of the working body and parameters of its oscillations the relationships between parameters of the machine were established, and the rational dynamic regimes with low energy consumption and low dynamic forces transmitted to its base were defined

Developing system of automatic control resonant mode of a vibrating machine

The paper is devoted to the experimental check of a control algorithm for automatic adjustment of oscillations of a mechanical system to the resonance mode. Oscillations of the system are excited by rotating an unbalanced rotor of an asynchronous electric motor. Working principle of the control system is based on measuring a phase shift between oscillations of the system and an excitation force