Reference : A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies U...
Scientific journals : Article
Engineering, computing & technology : Aerospace & aeronautics engineering
Engineering, computing & technology : Mechanical engineering
A Class of Methods for the Analysis of Blade Tip Timing Data from Bladed Assemblies Undergoing Simultaneous Resonances—Part I: Theoretical Development
Gallego-Garrido, Jon [Rolls-Royce PLC > Experimental Vibrations > > >]
Dimitriadis, Grigorios mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Intéractions fluide structure et aérodynamique expérimentale >]
Wright, Jan Robert [University of Manchester > School of Mechanical, Aerospace and Civil Engineering > > >]
International Journal of Rotating Machinery
Hindawi Publishing Corporation
11 pages
Yes (verified by ORBi)
[en] Rotating Machinery ; Blade Tip Timing
[en] Blade tip timing is a technique for the measurement of vibrations in rotating bladed assemblies. Although the fundamentals of the technique are simple, the analysis of data obtained in the presence of simultaneously occurring synchronous resonances is problematic. A class of autoregressive-based methods for the analysis of blade tip timing data from assemblies undergoing two simultaneous resonances has been developed. It includes approaches that assume both sinusoidal and general blade tip responses. The methods can handle both synchronous and asynchronous resonances. An exhaustive evaluation of the approaches was performed on simulated data in order to determine their accuracy and sensitivity. One of the techniques was found to perform best on asynchronous resonances and one on synchronous resonances. Both methods yielded very accurate vibration frequency estimates under all conditions of interest.
Researchers ; Professionals

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