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RISDesign and Experimental Verification of Mistuning of a Supersonic Turbine Blisk
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A rotor blisk of a supersonic space turbine has previously been designed to allow for free flutter to occur in an air test rig (, and , 2010, “Experimental and Computational Fluid Dynamics ...
Experimental and Computational Fluid Dynamics Based Determination of Flutter Limits in Supersonic Space Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbines operating at high pressure in high velocity flow are susceptible to flutter. As reduced frequencies become sufficiently low, negative aerodynamic damping will be found in some modes. ...
Investigation of Unsteady Aerodynamic Blade Excitation Mechanisms in a Transonic Turbine Stage—Part I: Phenomenological Identification and Classification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Based on the results of time-dependent 3-D viscous computations the aerodynamic mechanisms that cause the unsteady pressure fluctuations on the vane and rotor blade surface of a high-pressure ...
Investigation of Unsteady Aerodynamic Blade Excitation Mechanisms in a Transonic Turbine Stage—Part II: Analytical Description and Quantification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a study of the blade pressure perturbation levels and the resulting blade forces in a high-pressure transonic turbine stage based on 3-D time dependent viscous computations. ...
Effect of Scaling of Blade Row Sectors on the Prediction of Aerodynamic Forcing in a Highly Loaded Transonic Compressor Stage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An investigation of the sensitivity of a geometrical scaling technique on the blade forcing prediction and mode excitability has been performed. A stage of a transonic compressor is employed ...
A New Reduced Order Modeling for Stability and Forced Response Analysis of Aero-Coupled Blades Considering Various Mode Families
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the description and application of a new method for stability and forced response analyses of aerodynamically coupled blades considering the interaction of various mode families. ...