Measurement of Vibration Power Flow Through Isolation System

Based on the vibration isolation system,vibration power flow in the isolation system is investigated.Different measuring methods were used to measure the power flow through the upper and lower mass of the system and the base structure.Similar measuring results are obtained by different measuring methods used in the experiments.The cross spectral density of the upper and lower part's acceleration response could be used to measure the power flow into every isolator.The effective mobility and acceleration pickup could be used to measure the power flow.