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RISMistuning and Damping of a Radial Turbine Wheel. Part 1: Fundamental Analyses and Design of Intentional Mistuning Pattern
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The radial turbine impeller of an exhaust turbocharger is analyzed in view of both free vibration and forced response. Due to random blade mistuning resulting from unavoidable inaccuracies in manufacture or material ...
Investigation of Rear Blisk Drum Dynamics Under Consideration of Multi-Stage Coupling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The analysis of the structural dynamics of multistage cyclic structures as linked components is required to model the interstage coupling. In turbomachinery, this can result in a collaboration between different compressor ...
Vibration Analyses of an Axial Turbine Wheel With Intentional Mistuning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The last-stage bladed disk of a steam turbine is analyzed with respect to both flutter susceptibility and limitation of forced response. Due to the lack of variable stator vanes, unfavorable flow conditions may occur, which ...
Stator Blades Manufacturing Geometrical Variability in Axial Compressors and Impact on the Aeroelastic Excitation Forces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The manufacturing geometrical variability is a source of uncertainty, which cannot be avoided in the realization of machinery components. Deviations of a part geometry from its nominal design are inevitably present due to ...
Forced Response Analyses of Mistuned Radial Inflow Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Radial turbine wheels designed as blade integrated disks (blisk) are widely used in various industrial applications. However, related to the introduction of exhaust gas turbochargers in the field of small and medium sized ...
Forced Response Analysis of a Mistuned Compressor Blisk
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The forced response of an E3Etype high pressure compressor (HPC) blisk front rotor is analyzed with regard to varying mistuning and the consideration of the fluidstructure interaction (FSI). For that purpose, a reduced ...
Optimization Aided Forced Response Analysis of a Mistuned Compressor Blisk
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The forced response of the first rotor of an engine 3E (technology program) (E3E)type high pressure compressor (HPC) blisk is analyzed with regard to varying mistuning, varying engine order (EO) excitations and the ...
Modal Analyses of an Axial Turbine Blisk With Intentional Mistuning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The potential of intentional mistuning to reduce the maximum forced response is analyzed within the development of an axial turbine blisk for ship diesel engine turbocharger applications. The basic idea of the approach is ...
Forced Response Reduction of a Blisk by Means of Intentional Mistuning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of intentional mistuning has been analyzed for an axial turbocharger blisk with the objective of limiting the forced response due to low engine order excitation (LEO). The idea behind the approach was to increase ...