Vibration and Noise of an Axial Flow Fan [PDF]
Periodica Polytechnica Mechanical Engineering, 2015 We describe a mechanical/acoustic study of a short-ducted axial flow fan. The purpose is to compare mechanical noise to that caused by flow phenomena. The eigenfrequencies of the fan are identified through measurement and finite element computations. The fan acoustics is evaluated by beamforming studies using the Phased Array Microphone technique.
Kalmár-Nagy, Tamás +3 more
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Composite aeroacoustic beamforming of an axial fan
, 2016 As part an effort to more completely understand fan noise, this paper is concerned with the measurement of axial fan noise using beamforming acoustic arrays. Measurements were obtained using a large axial fan rig, located in UNSW’s aerospace research laboratory. The rig contains an axial fan, containing 8 rotors and 8 stators.
Fischer, J, Doolan, C
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Modelling and researching of forced spatial vibrations of axial fans [PDF]
MATEC Web of Conferences, 2019 This work presents a mechanic - mathematical matrix modelling of the forced spatial vibrations of an axial fan. The axial fan is considered as a mechanical system consisting of three rigid bodies and with 18 degrees of freedom. The differential equations
Slavov Valentin, Vukov Georgi
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Experimental study of blade thickness effects on the global and local performances of a Controlled Vortex Designed axial-flow fan [PDF]
, 2011 The purpose of this work is to study the effects of blade thickness on the performances of an axial-flow fan. Two fans that differ only in the thickness of their blades were studied.
NOURI, Hussain +7 more
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Analysis of the Free Flow Generated by a Two-Blade Axial Fan [PDF]
CientíficaThis paper analyses experimentally the flow generated by a two blades axial fan to determine the position in which the average induced axial velocity is maximum and the radius of the flow contraction (wake) in that position.
Tiburcio Fernández Roque +5 more
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Experimental study of blade rigidity effects on the global and the local performances of a thick blades axial-flow fan [PDF]
, 2010 An experimental investigation on the aerodynamic performances of thick blades axial-flow fans was carried out in this study. Two fans are considered, the first one is rotomoulded (in plastic) and the second one is milled (in aluminium). Both have exactly
NOURI, Hussain +7 more
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Design Optimization Method and Application of High-Efficiency and Variable-Pitch Axial Flow Fan [PDF]
E3S Web of ConferencesThis paper describes servo motor–driven variable-pitch axial flow fan, and its optimal design method, process and application results for improving the efficiency of the variable-pitch fan.
Lee Chan, Yang Sang Ho, Lee Sang Yeol
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Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System [PDF]
, 2012 An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow.
NOURI, Hussain +9 more
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AXIAL FAN BEARING SYSTEM VIBRATION ANALYSIS
Journal of Engineering, 2023 Rotating fan shaft system was investigated experimentally and theoretically to study its dynamic performance. The type of oil used for the bearing was taken in consideration during the experimental program .Three types of oil were used, SAE 40, SAE 50 ...
Assim H Yousif +2 more
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Utjecaj radijalnog i aksijalnog razrmaka na emitiranu buku i performance ventilatora
Promet (Zagreb), 2012 Among all auxilimy units of the air cooled diesel engine acooling fan is the noisiest. One of the noise generation mechanismsis the blade interaction with the vortices occurring in theradial and axial clearances of the fan due to the pressure ...
Mirko Čudina
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