A Blade Defect Diagnosis Method by Fusing Blade Tip Timing and Tip Clearance Information [PDF]
Sensors, 2018 Blade tip timing (BTT) technology is considered the most promising method for blade vibration measurements due to the advantages of its simplicity and non-contact measurement capacity.
Ji-wang Zhang +2 more
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Accuracy Evaluation Method for Blade Vibration Measurement in Blade Tip Timing Based on Direct Calibration Using Time of Arrival [PDF]
SensorsNon-contact blade vibration measurement based on blade tip timing (BTT) is a signature method for health monitoring in large rotating machinery. Time of arrival (ToA), as the fundamental data in BTT, directly impacts the accuracy of subsequent vibration ...
Qi Zhou +7 more
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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
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High-Precision Extraction Method for Blade Tip-Timing Signal with Eddy Current Sensor
International Journal of Rotating Machinery, 2020 Online monitoring of high-speed rotating blades has always been a hot topic. Of the various methods, the blade tip timing (BTT) technique, based on eddy current sensors, is considered to be the most promising.
Ji-wang Zhang, Ke-qin Ding, Guang Chen
doaj +2 more sources
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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Identification of Vibration Events in Rotating Blades Using a Fiber Optical Tip Timing Sensor [PDF]
Sensors, 2019 The blade tip timing (BTT) technique has been widely used in rotation machinery for non-contact blade vibration measurements. As BTT data is under-sampled, it requires complicated algorithms to reconstruct vibration parameters.
Dechao Ye +5 more
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Dynamic Characteristics Analysis of 3D Blade Tip Clearance for Turbine Blades with Typical Cracks
International Journal of Aerospace Engineering, 2022 As well known, the crack is a typical fault of turbine blades, which is difficult to detect due to the weak fault features contained in the rotor vibration.
Xiaodong Zhang +5 more
doaj +2 more sources
Shock and Vibration, 2020 Monitoring the vibrations of high-speed rotating blades is significant to the security of turbomachineries. Blade tip timing (BTT) is considered as a promising technique for detecting blade vibrations without contact online.
Suiyu Chen +5 more
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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
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Experimental Investigation: Vibration Measurement of a Rotating Blade with Digital Image Correlation and Blade Tip-Timing [PDF]
Micromachines, 2022 High cycle fatigue has been known as an important form of aeroengine blade failure. This study aims to achieve a method of investigation for a rotating blade vibration measurement, combining the two non-contact optical techniques of digital image ...
Zhonghan Liang, Yuxiang Zhang, Lin Yue
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