CONTRIBUTION TO MINIMIZING THE EFFECTS OF UNBALANCE ON A MOTOR-FAN

Lias REHAI, Ahmed BELLAOUAR, Rachid CHAIB, Mounir GAHGAH

Abstract


Abstract: In this work we have limited our study for the characterization of the influence of unbalance on the vibratory level of a motor- fan. In this context, we proceeded to create a mechanical imbalance, by adding a mass on the rotating part of the system. This causes a centrifugal force, which causes internal stresses, affecting the proper operation of the machine. The calculation of the FFT of each signal is performed by MATLAB software, which allows the temporal phenomenon to be properly presented in a frequency domain. The various measurements of the vibration amplitude will be analyzed by the Taguchi method, which helps to minimize the effect of unbalance on the motorized fan.

Key words: Motorized fan, unbalance, vibration, internal forces, Taguchi method.


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