| The blades vibration behavior of a 225MW hydraulic turbine was studied based onthe actual measured vibration and stress signals of the blades under varies runningconditions of the hydraulic turbine. The time series analysis was applied to analyze theresponse data and to recognize the dynamic parameters of blades. The main works arefollowed:1. The measured signals of blade vibration and stress was analyzed.2. The Effect of the varies running conditions, such as changing of the load, rotatingspeed, on the vibration and stress of the blades was discussed.3. A special program of time series analysis was developed to recognize thedynamic parameter of the turbine blade. The natural frequency and damped ratio wascalculated and the results were analyzed.
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