Reference : A comparison of blade tip timing data analysis methods
Scientific journals : Article
Engineering, computing & technology : Aerospace & aeronautics engineering
http://hdl.handle.net/2268/9940
A comparison of blade tip timing data analysis methods
English
Carrington, Ian B [University of Manchester > School of Engineering > > >]
Wright, Jan Robert [University of Manchester > School of Engineering > > >]
Cooper, Jonathan E [University of Manchester > School of Engineering > > >]
Dimitriadis, Grigorios mailto [Université de Liège - ULiège > Département d'aérospatiale et mécanique > Intéractions fluide structure et aérodynamique expérimentale >]
2001
Proceedings of the Institution of Mechanical Engineers. Part G, Journal of Aerospace Engineering
Professional Engineering Publishing
215
6
301-312
Yes (verified by ORBi)
International
0954-4100
United Kingdom
[en] blade tip timing ; non-intrusive stress measurement system ; vibration analysis ; turbomachinery ; bladed assemblies ; autoregressive methods
[en] The experimental determination of the vibration characteristics of rotating engine blades is very important for fatigue failure considerations. One of the most promising techniques for measuring the frequency of blade vibrations is blade tip timing. In this paper, three vibration analysis methods were specifically formulated and applied to the tip timing problem for the first time, using data obtained from a simple mathematical blade tip timing simulation. The results from the methods were compared statistically in order to determine which of the techniques is more suitable. One of the methods, the global autoregressive instrumental variables approach, produced satisfactory results at realistic noise levels. However, all of the techniques produced biased results under certain circumstances.
Researchers ; Professionals
http://hdl.handle.net/2268/9940
10.1243/0954410011533293
http://journals.pepublishing.com/content/7778375256122863/?p=b0d53dfe200f47329f44a26c541a3b07&pi=4

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