Paper published in a book (Scientific congresses and symposiums)
A Comparison of Blade Tip-Timing Data Analysis Methods
Carrington, I. B.; Wright, J. R.; Cooper, J. E.et al.
1999 • In Starr, A. G.; Leung, A. Y. T.; Wright, J. R.et al. (Eds.) Proceedings of the First International Conference on the Integration of Dynamics, Monitoring and Control
[en] The determination of the vibration characteristics of rotating engine blades is very important
for fatigue failure considerations. One of the most promising techniques for measuring blade vibrations is
blade tip-timing. Three vibration analysis methods were used on data obtained from a simple mathematical
blade tip-timing simulator. The results from the methods were compared statistically. 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.
