A shaft rotating at 120 rev/min is supported in bearings C and D, 1.8 m apart. Two unbalanced rotating masses of 7.5 kg and 10 kg at radii of 7.5 cm and 5 cm respectively are situated between C and D at distance of 0.6 and 0.9 respectively from C. the angle between the radii is 60°. Find the magnitudes and directions of the forces of the shaft on the bearings due to the combined action of the inertia loads (dynamic) and gravity forces (static) at the moment when the 7.5 kg is vertical and above the shaft and the 10 kg mass is on the right of the 7.5 kg mass when viewed from D to C.

A shaft rotating at 120 rev/min is supported in bearings C and D, 1.8 m apart. Two unbalanced rotating masses of 7.5 kg and 10 kg at radii of 7.5 cm and 5 cm respectively are situated between C and D at distance of 0.6 and 0.9 respectively from C. the angle between the radii is 60°. Find the magnitudes and directions of the forces of the shaft on the bearings due to the combined action of the inertia loads (dynamic) and gravity forces (static) at the moment when the 7.5 kg is vertical and above the shaft and the 10 kg mass is on the right of the 7.5 kg mass when viewed from D to C.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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