Results 11 to 20 of about 337,376 (283)

Vibration analysis of compressor blade tip-rubbing [PDF]

open access: yes, 2011
There has been a significant increase in air traffic volume, particularly over the past twenty years. In order to cope with this increase in demand, it has been necessary to increase the efficiency of aircraft engines.
Arzina, Dina
core   +7 more sources

Experimental Testing of Tip-Timing Methods used for Blade Vibration Measurement in the Aero-Engine [PDF]

open access: yes, 2004
An important component within the jet engine in terms of vibration and high cycle fatigue (HCF) is the blade. This is the component where continuously higher demands on weight and loading are being made.
Grant, Kelly
core   +7 more sources

Capacitance Tip Timing Techniques in Gas Turbines [PDF]

open access: yes, 2003
The vibration of turbomachinery blades is an important phenomenon to understand, observe and predict and is the reason for developing a tip timing measurement system.
Lawson, Craig P.
core   +7 more sources

CNN-based defect diagnosis method for rotating blades

open access: yesYou-qi chuyun, 2020
In order to solve the problem of difficult blade defect diagnosis caused by severe signal under-sampling in tiptiming technology, a defect diagnosis method for rotating blade based on convolution neural network (CNN) was proposed.In the method, the under-
Jiwang ZHANG   +3 more
doaj   +1 more source

Coupling analysis of contra-rotating fan interstage pressure pulsation and blade vibration based on wavelet reconstruction.

open access: yesPLoS ONE, 2021
In recent years, the flow characteristics research of the interstage region in counter-rotating axial fans in terms of fluid dynamics has attracted much attention.
Xinzhe Zhang   +4 more
doaj   +1 more source

Local Heat Transfer Measurements on a Rotating Flat Blade Model with a Single Film Hole [PDF]

open access: yes, 2009
An experimental study was performed to measure the heat transfer coefficient distributions on a flat blade model under rotating operating conditions. A steady-state thermochromic liquid crystal technique was employed to measure the surface temperature ...
Tao, Zhi   +8 more
core   +1 more source

Influence of design parameters on the global performances of low-speed counter-rotating axial-flow fans [PDF]

open access: yes, 2014
The present work aims at experimentally investigating the effects of some parameters on the performances of a counter-rotating stage, and on the instationary flow between the rotors.
BAKIR, Farid   +5 more
core   +1 more source

On The Vibration of a Cracked Rotating Blade [PDF]

open access: yesShock and Vibration, 1998
The dynamic behavior of a rotating blade containing a transverse crack was investigated. First, the local flexibility of the cracked blade was obtained by using the method of the released energy. An energy principle, in conjunction with a weighted residual method, was then applied to yield the discrete equations of motion.
Ming-Chuan Wu, Shyh-Chin Huang
openaire   +2 more sources

Analysis of Cavitation Instabilities in a Four-Blade Inducer [PDF]

open access: yes, 2012
The cavitating behavior of a four-blade inducer tested in the LML laboratory large test facility is considered in the present paper. Experimental investigations based on unsteady pressure measurements and records from a six-component balance mounted on ...
DAZIN, Antoine   +7 more
core   +1 more source

Literature Survey of Experiment of Vibration and Response for Rotating Blade with Dry Friction Damper

open access: yesHangkong gongcheng jinzhan, 2018
It is of important significance to study the vibration characteristics and vibration suppression technology of aero-engine rotating blades to improve the engine performance, structural integrity and working reliability.
Qin Jie, Yan Qun, Huang Wenchao
doaj   +1 more source

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