Determine the inside diameter of the hollow shafts, which results in the same shear stress in both, shafts and bolts. The outside diameter of the shafts is 240 mm and the coupling has 6 bolts of 36 mm each on a bolt circle of 480 mm. Problem 3: Two identical hollow shafts are connected by a flanged coupling. (a) the maximum shear stress in the shaft If the shaft shear modulus is 85 GPa determine: The shafts, 180 mm diameter and 2 m long, are connected through a flanged coupling with 6 coupling bolts of 40 mm diameter arranged on a pitch circle of 340 mm. Problem 2: A turbine – generator transmission is rated for 3500 kW at 160 RPM. (b) the weight savings in percentage, assuming that the steel densities of both shafts are identical (a) the bore diameter of the hollow shaft in terms of outside diameter In order to keep the existing bearings, the new shaft will have the same outside diameter as the existing, solid shaft. Problem 1: To improve an engine transmission, a solid shaft will be replaced with a hollow shaft of better quality steel resulting in an increase in the allowable stress of 24%. Solve the following problems using the General Torsion Equation.
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