Search for dissertations about: "failure analysis of steam turbine blades"

Found 2 swedish dissertations containing the words failure analysis of steam turbine blades.

2. 1. Improved Flutter Prediction for Turbomachinery Blades with Tip Clearance Flows

   Author : Tianrui Sun; Andrew R. Martin; Paul Petrie-Repar; Mihai Mihaescu; KTH; []
   Keywords : Steam turbine; Flutter; Aeroelastic stability; Tip clearance flow; Detached-Eddy Simulation; Energiteknik; Energy Technology;

   Abstract : Recent design trends in steam turbines strive for high aerodynamic loading and high aspect ratio to meet the demand of higher efficiency. These design trends together with the low structural frequency in last stage steam turbines increase the susceptibility of the turbine blades to flutter. READ MORE

4. 2. The Influence of Flow Leakage Modelling on Turbomachinery Blade Forcing Predictions

   Author : Tobias Gezork; Björn Laumert; Paul Petrie-Repar; Damian Vogt; Mehdi Vahdati; KTH; []
   Keywords : Energiteknik; Energy Technology;

   Abstract : Vibrations in turbomachinery engine components are undesirable as they put the structural integrity of the components at risk and can lead to failure during the lifetime of the turbomachinery engine. Vibrations arising from aerodynamic forces and stability of turbomachinery blades is assessed in the discipline of aeromechanics. READ MORE