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- W2314522061 abstract "The effects of blade mistuning on the aerodynamic characteristics of a class of bladed-disk assemblies, namely high energy turbines, are discussed. The specific rotor analyzed is the first stage of turbine blades of the oxidizer turbopump in the Space Shuttle Main Engine. The common occurrence of fatigue cracks for these turbine blades indicates the possibility of high dynamic loading. Since mistuning under conditions of weak interblade coupling has been shown to increase blade response amplitudes drastically for simple structural models of blade assemblies, it provides a plausible explanation for the occurrence of cracks. The focus here is on the effects of frequency mistuning on the aeroelastic stability of the assembly and on the aeroelastic mode shapes." @default.
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- W2314522061 date "1991-05-01" @default.
- W2314522061 modified "2023-09-22" @default.
- W2314522061 title "Localization of aeroelastic modes in mistuned high-energy turbines" @default.
- W2314522061 hasPublicationYear "1991" @default.
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