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
doaj +5 more sources
A Non-Uniformly Under-Sampled Blade Tip-Timing Signal Reconstruction Method for Blade Vibration Monitoring [PDF]
Sensors, 2015 High-speed blades are often prone to fatigue due to severe blade vibrations. In particular, synchronous vibrations can cause irreversible damages to the blade.
Zheng Hu +4 more
doaj +3 more sources
Sparse Representation Based Frequency Detection and Uncertainty Reduction in Blade Tip Timing Measurement for Multi-Mode Blade Vibration Monitoring [PDF]
Sensors, 2017 The accurate monitoring of blade vibration under operating conditions is essential in turbo-machinery testing. Blade tip timing (BTT) is a promising non-contact technique for the measurement of blade vibrations.
Minghao Pan +4 more
doaj +3 more sources
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
doaj +3 more sources
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
doaj +3 more sources
Reconstructed Order Analysis-Based Vibration Monitoring under Variable Rotation Speed by Using Multiple Blade Tip-Timing Sensors [PDF]
Sensors, 2018 On-line vibration monitoring is significant for high-speed rotating blades, and blade tip-timing (BTT) is generally regarded as a promising solution. BTT methods must assume that rotating speeds are constant.
Zhongsheng Chen +4 more
doaj +3 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
doaj +2 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
Blade Vibration Difference-Based Circumferential Fourier Fitting Algorithm for Synchronous Vibration Parameter Identification of Rotation Blades [PDF]
SensorsBlades are the core components of rotating machinery, and the blade vibration status directly impacts the working efficiency and safe operation of the equipment.
Zhenfang Fan +3 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