A rotor torsional excitation of vibration analysis and experiment system

A rotor torsional excitation of vibration analysis and experiment system, belongs to the technical field of rotating machine experimental apparatus. The present invention includes a multi-span test rig, torsional excitation of rotor vibration monitoring and analysis system device and the rotor. The rotor torsional excitation means, the output signal of the signal generator generates an alternating signal through power and DC power transformer action with linear power superposition, the DC motor as an input so that the output torque fluctuation; the test rig multispan torsional vibration occurs in the rotor a fluctuating torque excitation, lateral and torsional vibrations of the rotor vibration monitoring and analysis system for monitoring the rotor. The present invention may be accomplished under laboratory conditions with the measuring rotor excitation of the torsional vibration system can be used for investigation of rotor when subjected to lateral vibrations and torsional excitation of torsional vibration of the relationship, the analysis feature torsional excitation rotor system, the system is easy to implement, fully functional. Mainly used for rotating machinery research and teaching.