Mistuning refers to variations in modal properties of blades due to manufacturing tolerances and material defects. This can result in the amplification of a blade vibratory amplitude. This paper deals with the design of vibration absorbers for a mistuned bladed disk. First, the basic theory is established for undamped vibration absorbers using a single-mode model for each blade. Then, it is extended to include a multiple mode model of each blade and disk dynamics. The impact of mistuning on the bladed disk vibration is examined in the presence of undamped absorbers via Monte Carlo simulations. It is found that vibration absorbers can be an effective method to counter the detrimental effects of mistuning.
Vibration Absorbers for a Mistuned Bladed Disk
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received August 15, 2016; final manuscript received February 27, 2018; published online April 16, 2018. Assoc. Editor: John Judge.
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Sinha, A. (April 16, 2018). "Vibration Absorbers for a Mistuned Bladed Disk." ASME. J. Vib. Acoust. October 2018; 140(5): 051002. https://doi.org/10.1115/1.4039539
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