In: Mechanical Engineering
The propeller shaft of a large ship has an outside diameter of 350 mm and inside diameter 250mm. the shaft is rated for a maximum of shear stress 62 MPa.
1) if the shaft is runnning at 500 rpm what is the maximum power that can be transmitted without exceeding allowable stress.
2) if the rotational speed of the shaft is doubled but the power requirements unchanged what happens to the shear stress in the shaft? calculate valures.