A Blade Tip Timing Method Based on a Microwave Sensor [PDF]
Sensors, 2017 Blade tip timing is an effective method for blade vibration measurements in turbomachinery. This method is increasing in popularity because it is non-intrusive and has several advantages over the conventional strain gauge method.
Guangyue Niu +2 more
exaly +8 more sources
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 +6 more sources
State-Space Model for Arrival Time Simulations and Methodology for Offline Blade Tip-Timing Software Characterization [PDF]
Sensors, 2023 Blade tip-timing is an extensively used technique for measuring blade vibrations in turbine and compressor stages; it is one of the preferred techniques used for characterizing their dynamic behaviors using non-contact probes.
Tommaso Tocci +4 more
doaj +3 more sources
Vibration Parameters Identification of Rotating Blades Based on Blade Tip-Timing Sensor Waveforms
Applied Sciences (Switzerland), 2023 Blade tip-timing is one of the most widely used non-contact measurement methods for rotating blade vibration. The classic blade tip-timing method is to identify the vibration parameters of the blade based on the time of blade tip arrival to the tip ...
Liang Zhang
exaly +4 more sources
Forced response of rotating bladed disks: Blade Tip-Timing measurements [PDF]
Mechanical Systems and Signal Processing, 2017 Abstract The Blade Tip-Timing is a well-known non-contact measurement technique currently employed for the identification of the dynamic behaviours of rotating bladed disks. Although the measurement system has become a typical industry equipment for bladed disks vibration surveys, the type of sensors, the positioning of the sensors around the bladed ...
Giuseppe Battiato
exaly +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
Blade Crack Diagnosis Based on Blade Tip Timing and Convolution Neural Networks
Applied Sciences, 2023 The diagnosis of blade crack faults is critical to ensuring the safety of turbomachinery. Blade tip timing (BTT) is a non-contact vibration displacement measurement technique, which has been extensively studied for blade vibration condition monitoring ...
Guangya Zhu +5 more
doaj +3 more sources
Identification of Blade Vibration Parameters Based on Improved Composite Reference Blade Tip-Timing Method [PDF]
SensorsAs the core component of an engine, the vibration characteristics of blades directly affect the stability and lifespan of the engine. Thus, monitoring the vibration status of the blades is essential.
Liang Zhang +4 more
doaj +3 more sources
Multi-Stage Robust Bayesian High-Resolution Identification of Asynchronous Blade Vibrations Using Blade Tip Timing [PDF]
EntropyBlade Tip Timing (BTT) is an essential non-contact technique for monitoring vibrations in rotating machinery, but its practical accuracy is often degraded by noise, undersampling, and spectral leakage.
Qinglei Zhang, Xiwen Chen
doaj +2 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 +2 more sources