Design of mistuning patterns to control the vibration amplitude of unstable rotor blades
Sign Up to like & getrecommendations! Published in 2018 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2018.06.034
Abstract: Abstract Flutter onset is one of the major causes for increased vibration levels in low pressure turbine (LPT) rotor blades. This paper describes the design process and the experimental testing of intentional mistuning patterns specifically… read more here.
Keywords: vibration; mistuning patterns; intentional mistuning; rotor blades ... See more keywords
High order sensitivity analysis of a mistuned blisk including intentional mistuning
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Theoretical and Applied Mechanics"
DOI: 10.15632/jtam-pl.55.1.353
Abstract: Small deviations between turbine blades exist due to manufacturing tolerances or material inhomogeneities. This effect is called mistuning and usually causes increased vibration amplitudes and also a lower service life expectancy of bladed disks or… read more here.
Keywords: mistuned blisk; sensitivity; maximum amplitude; sensitivity analysis ... See more keywords
Key Action Mechanisms of Intentional Mistuning
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DOI: 10.3390/app11125650
Abstract: Intentional mistuning is a common procedure to decrease the uncontrolled vibration amplification effects of the (unavoidable) random mistuning, and to reduce the sensitivity to it. The idea is to introduce an intentional mistuning pattern that… read more here.
Keywords: mechanisms intentional; action mechanisms; random mistuning; intentional mistuning ... See more keywords