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RISValidation of a Methodology to Assess the Flutter Limit Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed Disks—Part II: Rotational Speed Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of the operating conditions on the vibration amplitude trends of an isolated low-pressure turbine rotor is described. The study utilizes an analytical model correlating the aerodynamic and dry-friction work ...
Validation of a Methodology to Assess the Flutter Limit-Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed Disks—Part I: Mach Number Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a methodology to estimate the vibration amplitude of fluttering low-pressure turbine (LPT) blades saturated due to friction effects. The study utilizes an analytical model that balances aerodynamic work ...
Conceptual Comparative Study of the Flutter Vibration Amplitude of Unstable Aeronautical Fans and Low-Pressure Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Flutter design criteria in aeronautical fans and cantilever low-pressure turbines (LPTs) differ significantly. Modern LPT blades often exhibit aeroelastic instability across multiple nodal diameters but are ...