Kinematic system for measurement of dynamic parametes of vibrationg parts under rotation

Kinematic system for measurement of dynamic parameters of vibrating parts under rotation.In the contribution the research on the improvement of the kinematic measuring system for evaluation of natural and forced vibration of machinery parts under rotation is presented. The improvement was aimed at the sensor part for a continuous movement of rotating and vibrating disk. For this reason the numerical FE model of the physical model of bladed disk was developed and analyzed. Laboratory verification of the new proposed sensor system was performed under an electromagnetic harmonic excitation. By means of strain-gauge measurement that were placed on several disk blades with a slip-ring signal transmission, the dynamics of the rotor was analyzed and the kinematic system was calibrated