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1. Time-frequency reassignment of blade tip timing signal NSTL国家科技图书文献中心

Jinghui Xu |  Baijie Qiao... -  《Mechanical Systems & Signal Processing》 - 2025,224(Feb.) - 112163.1~112163.18 - 共18页

摘要: tip timing (BTT), as a non-contact measurement | The health condition of a rotor blade can be |  timefrequency analysis of the blade vibration signal. Blade |  reassignment utilizes the blade natural frequency, obtained |  blade dynamic frequency with respect to the rotational
关键词: Blade tip timing |  Rotor blade |  Time-frequency reassignment |  Bayesian estimation

2. Blade tip clearance measurement method based on blade tip timing without the once per revolution sensor NSTL国家科技图书文献中心

Guo, Xiaolei |  Liu, Huoxing... -  《Measurement Science & Technology》 - 2025,36(1) - 1~11 - 共11页 - 被引量:1

摘要: method based on blade tip timing (BTT) stands out | The rotor blade tip clearance (BTC) of an | - blade tip clearances akin to the traditional method. | -revolution (OPR) sensor for rotor speed and blade serial |  identify blade serial numbers and achieve BTC measurement
关键词: aeroengine |  blade tip clearance |  blade tip timing |  none once per revolution

3. Improving the blade tip clearance measurement method based on blade tip timing: Accounting for rotor speed variations and non-uniform blade-by-blade tip clearance NSTL国家科技图书文献中心

Guo, Xiaolei |  Liu, Huoxing... -  《Measurement》 - 2025,242PA(Pt.1) - 115777~ - 共13页

摘要: method based on Blade Tip Timing (BTT) suffers from | The Blade Tip Clearance (BTC) measurement |  the determination of blade-by-blade tip clearance |  measurement errors in blade-by-blade tip clearance |  blade-by-blade tip clearance notably enhances
关键词: Aeroengine |  Blade tip clearance |  Blade tip timing |  Blade-by-blade

4. Frequency identification method based on active aliasing of biprobes blade tip timing without once-per-revolution NSTL国家科技图书文献中心

Zhou, Lei |  He, Changbo... -  《Measurement》 - 2025,242PC - 115868~ - 共14页

摘要:, monitoring their health is necessary. Blade tip timing (BTT |  of blade vibration parameters from under-sampled |  method based on the vibration difference of the blade |  the blade. In the proposed method, two BTT probes |  are used to calculate the blade vibration difference
关键词: Active aliasing |  Blade tip timing |  Frequency identification |  Once-per-revolution-free |  Blade vibration difference

5. Sparse-assisted blade tip timing signal decomposition and automatic resonance region identification method NSTL国家科技图书文献中心

Daitong Wei |  Tao Yu... -  《Mechanical Systems & Signal Processing》 - 2025,226(Mar.) - 112390.1~112390.24 - 共24页

摘要: of rotating blades, a blade tip timing (BTT) signal |  theoretical support for blade fault diagnosis based on | Rotating blades are affected by various |  factors such as rotorstator interaction, rotor vibration | , unstable fluid excitation, and foreign object damage
关键词: Blade vibration |  Blade tip timing |  Sparse optimization |  Signal decomposition |  Resonance region identification

6. Non-convex sparse regularization via convex optimization for blade tip timing NSTL国家科技图书文献中心

Kai Zhou |  Yanan Wang... -  《Mechanical Systems & Signal Processing》 - 2025,222(Jan.) - 111764.1~111764.20 - 共20页 - 被引量:1

摘要:Blade Tip Timing (BTT), an emerging technology |  measurement of rotor blade vibration. However, the blade |  state of the rotor blade, hindering effective | ) method in recognizing blade multimodal vibration |  poised to replace strain gauges, enables contactless
关键词: Blade tip timing |  Multimodal vibration |  Parameter identification |  Non-convex sparse regularization

7. Active aliasing ESPRIT: A robust parameter estimation method for low-intervention Blade tip timing measurement NSTL国家科技图书文献中心

Jiahui Cao |  Zhibo Yang... -  《Mechanical Systems & Signal Processing》 - 2025,227(Mar.) - 112392.1~112392.19 - 共19页

摘要: blades. Blade tip timing (BTT) is an emerging vibration |  a promising approach for blade condition |  reflect the blade health condition. However, BTT signals | Rotating blades are critical but fragile |  components in aeroengine. Damage to rotating blades will
关键词: ESPRIT |  Undersampling |  Non-uniform sampling |  Frequency estimation |  Blade tip timing |  Bi-probe layout

8. A novel time-frequency analysis method of blade tip timing signals based on multiple measurement vectors NSTL国家科技图书文献中心

Yunyang Ma |  Baijie Qiao... -  《Mechanical Systems & Signal Processing》 - 2025,227(Mar.) - 112351.1~112351.22 - 共22页

摘要: tip timing (BTT), have gained substantial attention |  blade vibration measurement techniques, such as blade |  emerged as a solution to extract comprehensive blade |  achieve blade natural frequency tracking and frequency |  frequency aliasing, significantly improves blade natural
关键词: Blade tip timing |  Parameter identification |  Sparse reconstruction |  Multiple measurement vectors |  Joint sparsity

9. Identification of blade vibration parameters based on improved blade tip timing technology and two-factor analysis method NSTL国家科技图书文献中心

Xu, Shuben |  Wei, Daitong... -  《Measurement Science & Technology》 - 2025,36(1) - 1~13 - 共13页

摘要: measurement method, blade tip timing (BTT) is regarded as an |  efficient technique for blade vibration monitoring as it |  this work, a novel blade vibration parameters | . Based on the model, the relationship between blade |  identification of blade vibration parameter, which provides a
关键词: blade tip timing |  vibration parameter identification |  two-factor analysis method |  elliptical fitting |  single sensor

10. A novel sparse reconstruction method for under-sampled blade tip timing signals: Integrating vibration displacement and velocity NSTL国家科技图书文献中心

Wenkang Huang |  Zifang Bian... -  《Mechanical Systems & Signal Processing》 - 2025,229(Apr.) - 112543.1~112543.19 - 共19页

摘要: velocity-based blade tip timing (D-V-BTT) method is |  tip timing (BTT) technology serves as a key method |  frequency identification of blade tip vibration without |  for the safety and performance of machines. Blade |  for monitoring and analyzing blade vibrations
关键词: Blade tip timing |  Displacement and velocity-based |  Sparse reconstruction |  Non-convex regularization
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