Results 61 to 70 of about 1,027,849 (126)

An Experimentally Validated Modal Model Simulator for the Assessment of Different Blade Tip Timing Algorithms [PDF]

, 2019
Blade Tip Timing (BTT) technology is concerned with the estimation of turbomachinery blade vibration. A BTT system comprises two parts: (a) measurement system for blade tip arrival times (“BTT data”); (b) the analysis algorithms. Simulators that generate
Russhard, Peter, Mohamed, Mohamed, Bonello, Philip   +2 more
core   +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

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

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

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

Three dimensional unsteady flow for an oscillating turbine blade [PDF]

, 1999
An experimental and computational study, motivated by the need to improve current understanding of blade flutter in turbomachinery and provide 3D test data for the validation of advanced computational methods for the prediction of this aeroelastic ...
Bell, D.L., Bell, David Lloyd
core  

Blade-Tip Timing Measurement Of Synchronous Vibrations Of Rotating Bladed

, 2002
peer reviewedBlade-tip timing (BTT) is a promising method for the detection, measurement and analysis of blade vibrations in rotating bladed assemblies.
Wright, Jan Robert, Carrington, Ian B., Cooper, Jonathan E, Dimitriadis, Grigorios   +3 more
core   +1 more source

Validating Blade Vibration Amplitudes from Blade Tip-Timing Data Analysis

, 2004
peer reviewedBlade Tip-Timing (BTT) is a method for the measurement of blade vibration in rotating bladed assemblies such as those found in turbomachinery.
Gallego-Garrido, Jon, Dimitriadis, Grigorios   +1 more
core   +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