In rotating shafts where large power is transmitted, it is desired to achieve smooth transmission and avoid any torsional vibration in the system. These vibrations result from torsional flexibilities due to shaft stiffnesses and carried inertias. To demonstrate this phenomenon a user-friendly computer program is developed as a result of a final-year project to analyse different multi-degree torsional vibratory systems. The computer program together with the corresponding experimental rig makes the students aware of the torsional resonances in the rotating shafts and demonstrates their effect.
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