Full-field dynamic strain reconstruction of rotor blades under multi-mode vibration
The peak stress for the high-speed rotating blade is time-varying and space-varying under
multi-mode vibration, which affects the measurement accuracy of dynamic strain. The full …
multi-mode vibration, which affects the measurement accuracy of dynamic strain. The full …
Rotating blade frequency identification by single-probe blade tip timing
The rotating blade is a key turbomachinery component with a high failure risk. Therefore,
monitoring the rotating blade is urgently required. Blade tip timing (BTT) is regarded as an …
monitoring the rotating blade is urgently required. Blade tip timing (BTT) is regarded as an …
An improved multiple signal classification for nonuniform sampling in blade tip timing
Blade tip timing (BTT) is an effective noncontact measurement technology for rotating blade
health monitoring. However, due to the mismatching between the high-speed rotation and …
health monitoring. However, due to the mismatching between the high-speed rotation and …
Blade dynamic strain non-intrusive measurement using L1/2-norm regularization and transmissibility
C Ao, B Qiao, L Chen, J Xu, M Liu, X Chen - Measurement, 2022 - Elsevier
Dynamic strain measurement is critical in blade vibration monitoring for evaluating the
residual life and health condition of rotating blades. Blade tip time (BTT) is recognized as a …
residual life and health condition of rotating blades. Blade tip time (BTT) is recognized as a …
Non-contact full-field dynamic strain reconstruction of rotating blades under multi-mode vibration
Dynamic strain measurements of rotating blades have attracted significant attention in the
turbomachinery design, testing, and service stages. Measuring the blade full-field strain …
turbomachinery design, testing, and service stages. Measuring the blade full-field strain …
Dynamic coupling vibration of rotating shaft–disc–blade system—Modeling, mechanism analysis and numerical study
This study aims at revealing the coupling vibration mechanism of RSDB system. First, a
comprehensive coupling dynamic model of RSDB system including the shaft bending, shaft …
comprehensive coupling dynamic model of RSDB system including the shaft bending, shaft …
An adaptive online blade health monitoring method: From raw data to parameters identification
Blade tip timing (BTT) methods have been increasingly implemented for blade health
monitoring (BHM). However, there are two drawbacks of current signal analysis methods …
monitoring (BHM). However, there are two drawbacks of current signal analysis methods …
Non-convex sparse regularization via convex optimization for blade tip timing
Abstract Blade Tip Timing (BTT), an emerging technology poised to replace strain gauges,
enables contactless measurement of rotor blade vibration. However, the blade vibration …
enables contactless measurement of rotor blade vibration. However, the blade vibration …
Vibration parameters identification of turbomachinery rotor blades under transient condition using Blade Tip-Timing measurements
During run ups and run downs, the rotating blades are subjected to fluctuating forces with
time dependent frequencies and the dynamic response of the blades around the resonance …
time dependent frequencies and the dynamic response of the blades around the resonance …
Blind interpolation for multi-frequency blade tip timing signals
S Chen, Y Yang, H Hu, F Guan, G Shen, Z Bian… - … Systems and Signal …, 2022 - Elsevier
Blade tip timing (BTT) is a promising non-contact on-line monitoring technique for rotor
blades. Although various analytical methods for BTT signals have been developed, their …
blades. Although various analytical methods for BTT signals have been developed, their …