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shaft, shown in Figure Q4, 1.4 m long carries four eccentric loads A, B, C and D, spaced at 0.00 m, 0.45 m, 0.75 m and 1.4 m from the end.  The loads are respectively 7.5 kg, 11 kg, 15 kg and 6 kg, and eccentricities are 36 mm, 48 mm, 54 mm and 96 mm.  The directions of the eccentricities of B, C and D relative to A are 600, 2000 and 2700.  The shaft is carried in bearings E and F, which are 0.175 m and 1.0 m from A, E being between A and B.

shaft, shown in Figure Q4, 1.4 m long carries four eccentric loads A, B, C and D, spaced at 0.00 m, 0.45 m, 0.75 m and 1.4 m from the end.  The loads are respectively 7.5 kg, 11 kg, 15 kg and 6 kg, and eccentricities are 36 mm, 48 mm, 54 mm and 96 mm.  The directions of the eccentricities of B, C and D relative to A are 600, 2000 and 2700.  The shaft is carried in bearings E and F, which are 0.175 m and 1.0 m from A, E being between A and B.

Elements Of Electromagnetics
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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A shaft, shown in Figure Q4, 1.4 m long carries four eccentric loads A, B, C and D, spaced at 0.00 m, 0.45 m, 0.75 m and 1.4 m from the end.  The loads are respectively 7.5 kg, 11 kg, 15 kg and 6 kg, and eccentricities are 36 mm, 48 mm, 54 mm and 96 mm.  The directions of the eccentricities of B, C and D relative to A are 600, 2000 and 2700.  The shaft is carried in bearings E and F, which are 0.175 m and 1.0 m from A, E being between A and B.

Question.04 A shaft, shown in Figure Q4, 1.4 m long carries four eccentric loads A, B, C and D, spaced at 0.00 m, 0.45 m, 0.75 m and 1.4 m from the end. The loads are respectively 7.5 kg, 11 kg, 15 kg and 6 kg, and eccentricities are 36 mm, 48 mm, 54 mm and 96 mm. The directions of the eccentricities of B, C and D relative to A are 60°, 200° and 270º. The shaft is carried in bearings E and F, which are 0.175 m and 1.0 m from A, E being between A and B. Determine, a) the maximum and minimum vertical forces on bearing E, when the shaft rotates at 120 rev/min., and b) the maximum speed at which the shaft may run, to ensure that the vertical component of the load on E is always downwards. A B C D DA B E F 90060° 70/140° -0-275m -0-3m-0-2 -025m.e_04m. 0-175m (a) ỐC (b) Figure Q4 A Long Shaft of 1.4 m in Length
Transcribed Image Text:Question.04 A shaft, shown in Figure Q4, 1.4 m long carries four eccentric loads A, B, C and D, spaced at 0.00 m, 0.45 m, 0.75 m and 1.4 m from the end. The loads are respectively 7.5 kg, 11 kg, 15 kg and 6 kg, and eccentricities are 36 mm, 48 mm, 54 mm and 96 mm. The directions of the eccentricities of B, C and D relative to A are 60°, 200° and 270º. The shaft is carried in bearings E and F, which are 0.175 m and 1.0 m from A, E being between A and B. Determine, a) the maximum and minimum vertical forces on bearing E, when the shaft rotates at 120 rev/min., and b) the maximum speed at which the shaft may run, to ensure that the vertical component of the load on E is always downwards. A B C D DA B E F 90060° 70/140° -0-275m -0-3m-0-2 -025m.e_04m. 0-175m (a) ỐC (b) Figure Q4 A Long Shaft of 1.4 m in Length
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