Constant speed tip deflection determination using the instantaneous phase of blade tip timing data

• Published in: Mechanical systems and signal processing Vol. 150; p. 107151
• Main Authors: Diamond, D.H., Heyns, P.S., Oberholster, A.J.
• Format: Journal Article
• Language: English
• Published: Berlin Elsevier Ltd 01.03.2021; Elsevier BV
• Subjects: Blade Tip Timing; Blade tips; Criteria; Deflection; Measurement techniques; Nonintrusive measurement; Proximity; Quadrature filter; Rotor blades; Rotor blades (turbomachinery); Rotor speed; Triggering criteria; Turbomachinery; Vibration measurement; Quadrature filter; Triggering criteria; Blade Tip Timing

•Blade Tip Timing proximity probe signals are converted into the angular domain.•Instantaneous phase information, using a quadrature filter, is used to calculate tip deflections.•Experimental tests against other triggering criteria are performed.•The proposed method demonstrates increased robustness...