Results 51 to 60 of about 131 (106)

Development of a Simulation Model for Blade Tip Timing with Uncertainties

Aerospace
Blades are widely used in the engines of aerospace vehicles, fans of near-space aerostat, and other equipment, and they are the key to completing energy conversion and pressure adjustment of the capsule.
Kang Chen, Guoning Xu, Xulong Zhang, Wei Qu   +3 more
doaj   +1 more source

旋转叶片异步振动参数辨识方法及试验验证

Jixie qiangdu, 2021
Based on the principle of blade tip timing（ BTT） and the vibration principle of one degree of freedom,the parameter identification algorithm of rotating blade asynchronous vibration is established by using all phase FFT（ apFFT） and least square method ...
王茜, 雷晓波
doaj  

A novel method for noise reduction of blade tip timing signals based on sparse representation and dictionary learning

Journal of Low Frequency Noise, Vibration and Active Control
Blade Tip Timing Technology (BTT) is a new type of blade vibration measurement method with non-contact measurement capabilities, which is associated with high efficiency and convenience.
Hua Zheng, Guanyu Fang, Shiqiang Duan, Hang Li   +3 more
doaj   +1 more source

Nonlinear Vibrations of Low Pressure Turbine Bladed Disks: Tests and Simulations

Applied Sciences
One of the most effective methods to limit the mechanical vibrations of bladed disks is the use of friction damping at mechanical joint interfaces. Unfortunately, dedicated tests to assess the impact of mistuning and the effectiveness of friction dampers
Umidjon Usmanov, Giuseppe Battiato, Christian Maria Firrone, Marta Conte, Emanuele Rosso, Antonio Giuseppe D’Ettole   +5 more
doaj   +1 more source

State-Space Model for Arrival Time Simulations and Methodology for Offline Blade Tip-Timing Software Characterization. [PDF]

Sensors (Basel), 2023
Tocci T, Capponi L, Rossi G, Marsili R, Marrazzo M.   +4 more
europepmc   +1 more source

Experimental Investigation on Hardware and Triggering Effect in Tip-Timing Measurement Uncertainty. [PDF]

Sensors (Basel), 2023
Capponi L, Tocci T, Marrazzo M, Marsili R, Rossi G.   +4 more
europepmc   +1 more source

Blade tip timing signals parameters identification based on Displacement Offset Decreased and Compressed Sensing

Advances in Mechanical Engineering
High-speed rotating blade vibration monitoring is of great significance for the safe operation of turbomachinery. Blade Tip Timing (BTT) is considered a promising technology in the field of blade vibration monitoring.
Jiajing Guo, Lin Yue
doaj   +1 more source

A Novel Blade Vibration Monitoring Experimental System Based on Blade Tip Sensing. [PDF]

Materials (Basel), 2022
Li H, Tian S, Yang Z.
europepmc   +1 more source

A Novel Method of Impeller Blade Monitoring Using Shaft Vibration Signal Processing. [PDF]

Sensors (Basel), 2022
Liska J, Vasicek V, Jakl J.
europepmc   +1 more source

A modal estimation method of rotating blade based on compressed sensing and blade tip timing

Journal of Low Frequency Noise, Vibration and Active Control
Structural modal estimation has consistently remained one of the most crucial areas of research in mechanical vibration analysis and signal processing. It is imperative to accurately monitor the vibration signals of rotor blades and their corresponding ...
Hua Zheng, Guanyu Fang, Zhenglong Wu, Shiqiang Duan, Jiangtao Zhou   +4 more
doaj   +1 more source