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1. 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:The Blade Tip Clearance (BTC) measurement |  method based on Blade Tip Timing (BTT) suffers from |  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

2. Flutter assessment of a rotor blade in hover based on indicial aerodynamics considering blade aerofoil, rotor inflow and wake periodicity NSTL国家科技图书文献中心

J. Arnold -  《The Aeronautical journal》 - 2025,129(Mar. TN.1333) - 593~608 - 共16页

摘要: rotor blades, also the 7AD blade exhibits a classical | The experimental 7AD rotor blade is assessed |  influence of aerodynamic contributions related to blade |  for the study of their impact on rotor blade flutter |  for circulation comprising blade aerofoil, rotor
关键词: articulated rotor blade |  multibody dynamics |  indicial aerodynamics |  blade flutter

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

4. Performance of cross-flow turbines with varying blade materials and unsupported blade span NSTL国家科技图书文献中心

Marone N. |  Wosnik M.... -  《Renewable energy》 - 2025,238(Jan.) - 1.1~1.15 - 共15页 - 被引量:1

摘要: performance and blade strain measurements while varying the |  following parameters: blade materials and blade free end |  free end. The blade materials tested were carbon, E |  hundreds of strain measurements per blade. Turbine |  performance and blade strain were measured while varying tow
关键词: Blade materials |  Composites |  Cross-flow turbine |  Marine energy |  Tow tank testing |  Turbine performance

5. Aero-engine blade detection and tracking using networked borescopes NSTL国家科技图书文献中心

Liu, Shuai |  Liang, Wei... -  《International Journal of Sensor Networks》 - 2025,47(3) - 148~161 - 共14页

摘要:-engine blade quality is essential. Traditional manual |  inefficient due to metallic reflections and blade similarity |  to aid in blade quality monitoring. A variable | . Finally, an optical flow-assisted blade tracking |  blade inspection platform. The experimental results
关键词: aero-engine blade detection |  aero-engine blade tracking |  convolutional neural network |  CNN |  endoscope sensor network

6. 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: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 |  assessed by its dynamic frequency with respect the
关键词: Blade tip timing |  Rotor blade |  Time-frequency reassignment |  Bayesian estimation

7. Dynamic modelling and failure analysis for a compressor blade in aero-engine undergoing blade-casing rubbing events NSTL国家科技图书文献中心

Yu, Pingchao |  Tao, Xuanjun... -  《Engineering failure analysis》 - 2025,177 - 109700~ - 共26页

摘要:Blade-casing rubbing is a common phenomenon in |  failure of the blade. The complex geometric |  state of different blade tip positions, are proposed |  blade are revealed. The simulation results show that |  the contact of blade leading edge with casing can
关键词: Blade-casing rubbing |  Intermittent rubbing condition |  Vibration stress |  Fracture failure

8. Test rig and experimental Investigation on the blade containment of aero-engine turbine casing NSTL国家科技图书文献中心

Weijian Nie |  Xiaoguang Yang... -  《Engineering failure analysis》 - 2025,178 - 109726~ - 共12页

摘要:Blade-off is a common failure phenomenon |  requirement in aero-engine design. However, turbine blade |  prefabricating cracks at the blade root. By considering the |  speed. The final blade-breaking rotational speed was |  mass loss. Based on blade-breaking test results, the
关键词: Aero-engine |  Turbine blade |  Blade off |  Blade containment |  Blade fracture |  Superalloy |  Turbine engine casing

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. (108912)A novel method for shape pre-optimization of fir-tree couplings in blade-disk connections NSTL国家科技图书文献中心

Muzio M. Gola |  Farhad Alinejad -  《Engineering failure analysis》 - 2025,167(Pt.A) - 1~36 - 共36页

摘要: the pre-optimization of the blade-disk fir-tree |  connections. Failure of the blade-disk attachment can lead | This paper presents an innovative approach to |  coupling, with the intent of advancing the design and |  analysis of such connections in turbomachinery. These
关键词: Turbomachinery |  Fir-tree attachment |  Turbine blade |  Turbine disk |  Mechanical stress |  Mechanical design |  Pre-optimization
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