A model of an active vibration damping system with phase-locked loop frequency

摘要

The utility model refers to the means of active vibration damping of various technical objects. It can be used in shipbuilding, mechanical engineering and other industries. The use of the utility model makes it possible to increase the efficiency of vibration damping at the operating frequency of the engine rotor rotation, due to an increase in the tuning accuracy of the controlled vibration damper in antiphase with respect to the effect generated by the vibroactive mechanism. Fine tuning is provided by an adaptive control system that corrects the operation of a controlled vibration damper of a dynamic type in accordance with the current engine speed. The active vibration damping system includes: a controlled electrodynamic vibration damper, a tachometer, a vibration velocity measurement sensor (accelerometer), a vibration source in the form of an asynchronous electric motor, an automatic control system including a phase-locked loop.