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

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter3: Torsion

Section: Chapter Questions

Problem 3.7.3P: A motor driving a solid circular steel shaft with diameter d = 1.5 in, transmits 50 hp to a gear at...

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