The Vibration of Turbine Blades with shroud

Abstract

We experience sometimes the failure of turbine blades of about tencentimeter long caused by fatigue due to the vibration. The cause of this phenomenon is considered to be due to the resonant vibration of the fixed supported normal vibration of the blade system, whose blades are interconnected by a shroud on their top ends, excited by the periodic force owing to the wake of steam flow passed the nozzle. When the length of the blades becomes the length above mentioned, the resonance occurs most probably.