Results 11 to 20 of about 475,895 (274)

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

Numerical Study on Vibration Response of Compressor Stator Blade Considering Contact Friction of Holding Ring

open access: yesApplied Sciences, 2023
There are many kinds of assembly structures in heavy-duty gas turbine compressor stator blades which have significant influence on the complex damping vibration characteristics.
Jiaobin Ma   +3 more
doaj   +1 more source

Experimental and Numerical Study of Nonlinear Vibration in Compressor Stator Blade with Holding Ring Structure Considering Contact Friction

open access: yesApplied Sciences, 2023
At present, there are very few vibration test designs for compressor stator blades in damped blade test research, and there is a lack of consideration of the holding ring structure of the blade installation.
Jiaobin Ma   +3 more
doaj   +1 more source

Effect of blade tips ice on vibration performance of wind turbines

open access: yesEnergy Reports, 2023
There are abundant wind resources in cold regions. Therefore, it is essential to systematically study some icing situation of wind turbines blades (especially the blade tip area) to reduce the loss of wind turbines blades caused by faults, which has ...
Yuanjun Dai   +4 more
doaj   +1 more source

Flutter Prediction Method for Long Blade of Steam Turbine

open access: yes发电技术, 2021
A three-dimensional fluid-solid coupling calculation model of long blade of steam turbine was established based on the aerodynamic and structural vibration simulation platform. Taking the second last stage blade of a foreign 60Hz steam turbine unit as an
Changchun LIU   +4 more
doaj   +1 more source

Theoretical and experimental determination of the boundary conditions influence on gas turbine blade vibration charaсteristics

open access: yesАвіаційно-космічна техніка та технологія, 2022
A description of the stand based on a digital speckle interferometer with a diffuse reference wave and separated branches is given, which allows determining the natural frequencies and vibration modes of objects in real time.
Mykhaylo Tkach   +5 more
doaj   +1 more source

High resolution computation of the aerodynamics and acoustics of blade vortex interaction [PDF]

open access: yes, 2008
In the present work, high resolution CFD simulations have been performed on an idealised problem of the interaction of an independently generated vortex with a rotor blade, including a case where the vortex directly impacts on the blade.
Duraisamy, K., Thom, A.
core   +8 more sources

The Transverse Vibration Characteristics of Circular Saw Blade on Mobile Cantilever-Type CNC Sawing Machine

open access: yesMachines, 2023
A circular saw blade is a commonly used tool in wood processing. The transverse vibration of the saw blade plays an important role in processing quality during cutting and affects its service life as well.
Xinyu Yan   +5 more
doaj   +1 more source

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