Journal ArticleDOI
Identification of Asynchronous Blade Vibration Parameters by Linear Regression of Blade Tip Timing Data
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This article is published in Journal of Engineering for Gas Turbines and Power-transactions of The Asme.The article was published on 2018-01-05. It has received 24 citations till now. The article focuses on the topics: Turbine blade.read more
Citations
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Journal ArticleDOI
A comprehensive review on blade tip timing-based health monitoring: status and future
TL;DR: Key developments of BTT probes, signal preprocessing and vibration monitoring are reviewed comprehensively, and detailed prospects are discussed on future directions including but not limited to uncertainty calibration, deep compressed sensing, deep learning, fusion of B TT and blade tip clearance.
Journal ArticleDOI
An Improved Multiple Signal Classification for Nonuniform Sampling in Blade Tip Timing
TL;DR: An improved MUSIC is proposed as an alternative methodology to extract the blade vibration frequency for BTT based on the orthogonality of the signal subspace and the noise subspace from undersampled signal.
Journal ArticleDOI
Reconstructed Order Analysis-Based Vibration Monitoring under Variable Rotation Speed by Using Multiple Blade Tip-Timing Sensors.
TL;DR: Simulation and experimental results testify that the proposed algorithms can accurately capture characteristic high EOs of synchronous and asynchronous vibrations under VRS by using few BTT sensors.
Journal ArticleDOI
Non-Contact Measurement of Blade Vibration in an Axial Compressor.
Radoslaw Przysowa,Peter Russhard +1 more
TL;DR: In this article, the forced vibrations of axial compressor blades, measured during the bench tests of the SO-3 turbojet, were analyzed and the Pearson coefficient of correlation between measured and predicted tip deflection was calculated to evaluate fitting results.
Journal ArticleDOI
Robust sparse representation model for blade tip timing
TL;DR: A robust sparse representation model based on a mixture of Gaussians (MoG) is proposed in this work and the solution algorithm of the proposed model is derived from the perspective of the expectation maximization (EM) algorithm.
References
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Journal ArticleDOI
Introduction to nondestructive testing : a training guide
TL;DR: Radiography Magnetic Particle Tests Ultrasound Testing Liquid Penetrant Tests Electromagnetic Testing Method Neutron Radiographic Testing Leak Testing Methods Acoustic Emissions Visual Inspection and Holography State of the Art Developments Appendices Index as discussed by the authors.
Journal ArticleDOI
Blade-tip timing measurement of synchronous vibrations of rotating bladed assemblies
TL;DR: In this paper, a mathematical model is developed to simulate data from typical BTT tests of rotating assemblies, and the simulator is then used in order to provide a qualitative analysis of several phenomena that can be associated with the synchronous vibrations of rotating assembly, including mistuning, coupling, excitation at multiple Engine Orders and simultaneous synchronous and asynchronous responses.
Journal ArticleDOI
A Comparison of Blade Tip-Timing Data Analysis Methods
TL;DR: 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, and the results from the methods were compared statistically in order to determine which of the techniques is more suitable.
Journal ArticleDOI
An improved single-parameter tip-timing method for turbomachinery blade vibration measurements using optical laser probes
S. Heath,Mehmet Imregun +1 more
TL;DR: In this paper, an improved analysis method for the interpretation of the vibration data measured at turbomachinery blade tips using optical laser probes is presented, which includes the structural and geometric properties of the bladed-disk assembly, the external forcing terms and the characteristics of the optical probe.
Journal ArticleDOI
A Survey of Blade Tip-Timing Measurement Techniques for Turbomachinery Vibration
Steve Heath,Mehmet Imregun +1 more
TL;DR: In this article, a comparative survey of tip timing analysis methods for the interpretation of vibration data measured at turbomachinery rotor blade tip using optical laser probes is presented. But the performance of the various techniques is investigated by using both actual assembly measurements and simulated response data.
Related Papers (5)
A Survey of Blade Tip-Timing Measurement Techniques for Turbomachinery Vibration
Steve Heath,Mehmet Imregun +1 more