Anisotropic Magnetoresistive Sensors: Dynamic Modeling and Characterization for Blade Tip-Timing Measurements [PDF]
SensorsMonitoring of blade vibrations in turbomachinery equipped with ferromagnetic blades is currently performed using the Blade Tip-Timing (BTT) non-contact technique.
Daniele Busti +4 more
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Determination of Vibration Properties and Reliable Frequency Estimation for Synchronous Vibrations Through Improved Blade Tip Timing Techniques Without a Once-per-Revolution Sensor [PDF]
SensorsSynchronous vibrations, which are caused by periodic excitations, can have a severe impact on the service life of impellers. Blade Tip Timing (BTT) is a promising technique for monitoring synchronous vibrations due to its non-intrusive nature and ability
Marios Sasakaros +3 more
doaj +2 more sources
A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing [PDF]
Shock and Vibration, 2021 During the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real-time vibration monitoring of the blades is of great significance to the stable operation and state-based ...
Haonan Guo +6 more
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An Improved Circumferential Fourier Fit (CFF) Method for Blade Tip Timing Measurements
Applied Sciences, 2020 Rotating blade vibration measurements are very important for any turbomachinery research and development program. The blade tip timing (BTT) technique uses the time of arrival (ToA) of the blade tip passing the casing mounted probes to give the blade ...
Zhibo Liu +5 more
doaj +3 more sources
Design and Uncertainty Evaluation of a Calibration Setup for Turbine Blades Vibration Measurement [PDF]
SensorsTurbomachinery engines face significant failure risks due to the combination of thermal loads and high-amplitude vibrations in turbine and compressor blades.
Lorenzo Capponi +8 more
doaj +2 more sources
Research on Blade Asynchronous Vibration Parameter Identification for Large-Scale Centrifugal Compressor Based on Improved MUSIC Algorithm [PDF]
SensorsBlade tip timing (BTT) is a core technique for investigating the blade vibration of large-scale centrifugal compressors, and identifying the parameters of blade asynchronous vibration is crucial for implementing blade condition monitoring based on the ...
Zhenfang Fan +4 more
doaj +2 more sources
Development of a Simulation Model for Blade Tip Timing with Uncertainties
AerospaceBlades are widely used in the engines of aerospace vehicles, fans of near-space aerostat, and other equipment, and they are the key to completing energy conversion and pressure adjustment of the capsule.
Kang Chen +3 more
doaj +2 more sources
Review of research on tip-timing and tip clearance measurement technology
Journal of Hebei University of Science and Technology, 2021 Turbine blades will fail due to fatigue fracture caused by vibration at high-speed rotation,resulting in damage of rotating machinery.Blade tip-timing measurement technology is the most promising non-contact blade vibration real-time monitoring method at
Liang ZHANG +3 more
doaj +1 more source
An Improved Blade Vibration Parameter Identification Method considering Tip Clearance Variation
Shock and Vibration, 2021 Blade tip timing (BTT) technology is the most effective means for real-time monitoring of blade vibration. Accurately extracting the time of blade tip reaching the sensors is the key to ensure the accuracy of the BTT system. The tip clearance changes due
Liang Zhang, Qidi Wang, Xin Li
doaj +1 more source
Blade Serial Number Identification Based on Blade Tip Clearance without OPR Sensor
Shock and Vibration, 2021 Blade serial number identification is one of the key issues in blade tip-timing vibration measurement without once-per-revolution (OPR) sensor. In order to overcome the shortcomings of the existing blade serial number identification methods without OPR ...
Liang Zhang +3 more
doaj +1 more source