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
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Vibration Parameters Identification of Rotating Blades Based on Blade Tip-Timing Sensor Waveforms
Applied Sciences, 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, Qidi Wang, Xin Li
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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
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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
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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
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Dynamic Voltage-Response Estimation for Blade-Tip Timing Sensors Based on EHHO-BP Network and Waveform Mapping [PDF]
SensorsBlade-tip timing (BTT) sensor technology is widely used for non-contact blade vibration measurement. However, conventional BTT methods mainly rely on sparse time-of-arrival (TOA) information, which limits continuous sensor-domain characterization of ...
Wei Huang +4 more
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A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing
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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Shock and Vibration, 2019 Blade tip-timing (BTT) is a promising method of online monitoring rotating blade vibrations. Since BTT-based vibration signals are typically undersampled, how to reconstruct characteristic vibrations from BTT signals is a big challenge.
Zhongsheng Chen, Jing He, Chi Zhan
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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
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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 +2 more sources