- The flywheel of an engine driving a dynamo has a mass of 180 kg and a radius of gyration of 30 mm. The shaft at the flywheel end has an effective length of 250 mm and is 50 mm diameter. The armature mass is 120 kg and its radius of gyration is 22.5 mm. The dynamo shaft is 34 mm diameter and 200 mm effective length. Calculate the position of node and frequency of torsional oscillation. G = 83 kN/mm².

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q4/ The flywheel of an engine driving a dynamo has a mass of 180 kg and a radius of gyration of
30 mm. The shaft at the flywheel end has an effective length of 250 mm and is 50 mm diameter.
The armature mass is 120 kg and its radius of gyration is 22.5 mm. The dynamo shaft is 34 mm
diameter and 200 mm effective length. Calculate the position of node and frequency of torsional
oscillation. G = 83 kN/mm².
Transcribed Image Text:Q4/ The flywheel of an engine driving a dynamo has a mass of 180 kg and a radius of gyration of 30 mm. The shaft at the flywheel end has an effective length of 250 mm and is 50 mm diameter. The armature mass is 120 kg and its radius of gyration is 22.5 mm. The dynamo shaft is 34 mm diameter and 200 mm effective length. Calculate the position of node and frequency of torsional oscillation. G = 83 kN/mm².
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