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RISAnalysis of the Effect of Multirow and Multipassage Aerodynamic Interaction on the Forced Response Variation in a Compressor Configuration—Part I: Aerodynamic Excitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aeroelastic prediction of blade forcing is still a very important topic in turbomachinery design. Usually, the wake from an upstream airfoil and the potential field from a downstream airfoil are considered as the main ...
Aeroelasticity at Reversed Flow Conditions—Part III: Reduction of Surge Loads by Means of Intentional Mistuning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Compressor surge consists of four phases: (i) pressure rise, (ii) flow breakdown, (iii) blowdown, and (iv) flow recovery. During the blowdown phase reversed flow conditions exist, where a blade may accumulate hundreds of ...
Analysis of the Effect of Multirow and Multipassage Aerodynamic Interaction on the Forced Response Variation in a Compressor Configuration—Part II: Effects of Additional Structural Mistuning
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The prediction of aerodynamic blade forcing is a very important topic in turbomachinery design. Usually, the wake from the upstream blade row and the potential field from the downstream blade row are considered as the main ...
Identification of Mistuning Based on Forced Response Measurements and Assessment for a Real Compressor Blisk
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We develop a novel method for the identification of mistuned blisks. The method relies on forced response measurements in a certain target frequency band. Modal stiffness deviations and an overall structural damping ...