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A Comparative Study on Shaft Alignment Systems (SAS)

Author : Lijesh K.P. and Harish Hirani

Pages : 1142-1147
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Improper alignment between the shafts often leads to severe vibration problems in many rotating machines and causes premature failure of components like bearing, coupling, seals etc. To realize the effect of misalignment, an experiment setup was developed and the system performance was evaluated by measuring the system-vibration using accelerometer at different rotational speed (3.5Hz, 7Hz, and 11Hz). The analysis of FFT signals indicated shortcoming of alignment-system based on the mechanical (spirit level + dial gauge) components. The system is then aligned using dual Laser Aligning System (LAS) and experiments were performed again. The results of acceleration signals and corresponding FFT signals have been presented.

Keywords: Alignment, laser aligning system, FFT, Acceleration.

Article published in International Journal of Current Engineering and Technology, Vol.5, No.2 (April-2015)


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