A shaft 450 mm diameter supports a 15000 kg steel propeller of the ship. The propeller shaft can be considered as a cantilever of 2 m length with a concentrated load at the end. The propeller is driven at 100 rpm when speed of the ship is 17.2 Knots. If the engine develops 15 MW and the propulsion efficiency is 85 %, calculate the principal stresses and the Maximum shear stress in the shaft and hence determine the factor of safety based on Max. shear stress and distortion energy theories if the shaft is made of steel having yield strength = 380 MPa. Given 1 knot = 1852 m/hr., sea water density = 1.1g/ml
A shaft 450 mm diameter supports a 15000 kg steel propeller of the ship. The propeller shaft can be considered as a cantilever of 2 m length with a concentrated load at the end. The propeller is driven at 100 rpm when speed of the ship is 17.2 Knots. If the engine develops 15 MW and the propulsion efficiency is 85 %, calculate the principal stresses and the Maximum shear stress in the shaft and hence determine the factor of safety based on Max. shear stress and distortion energy theories if the shaft is made of steel having yield strength = 380 MPa. Given 1 knot = 1852 m/hr., sea water density = 1.1g/ml
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 450 mm diameter supports a 15000 kg steel propeller of the ship. The propeller shaft can be considered as a cantilever of 2 m length with a concentrated load at the end. The propeller is driven at 100 rpm when speed of the ship is 17.2 Knots. If the engine develops 15 MW and the propulsion efficiency is 85 %, calculate the principal stresses and the Maximum shear stress in the shaft and hence determine the factor of safety based on Max. shear stress and distortion energy theories if the shaft is made of steel having yield strength = 380 MPa. Given 1 knot = 1852 m/hr., sea water density = 1.1g/ml
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