The Identification of Mass Unbalance for Rotating Machinery Based on Resonance Method

The technology of rotor balance is always the key technology of rotor dynamics investigation.Base on rotor types,different methods were adopted in experiment.Using the phase relation between force and displacement,the direction of force was determined based on resonance principle.The direction of force is just the direction of mass unbalance.After filtering,the data from the eddy current displacement sensor were analyzed and computed.The result indicates that it settle successfully the problem of mass unbalance in experiment using the method.