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The 6-in.-diameter L-2 steel shaft on the turbine is
Chapter 5, Problem 5-65(choose chapter or problem)
The 6-in.-diameter L-2 steel shaft on the turbine is supported on journal bearings at A and B. If C is held fixed and the turbine blades create a torque on the shaft that increases linearly from zero at C to \(2000 \mathrm{lb} \cdot \mathrm{ft}\) at D, determine the angle of twist of the shaft at D relative to C. Also, calculate the absolute maximum shear stress in the shaft. Neglect the size of the blades.
Questions & Answers
QUESTION:
The 6-in.-diameter L-2 steel shaft on the turbine is supported on journal bearings at A and B. If C is held fixed and the turbine blades create a torque on the shaft that increases linearly from zero at C to \(2000 \mathrm{lb} \cdot \mathrm{ft}\) at D, determine the angle of twist of the shaft at D relative to C. Also, calculate the absolute maximum shear stress in the shaft. Neglect the size of the blades.
ANSWER:
Problem 5-65The 6-in.-diameter L-2 steel shaft on the turbine is supported on journal bearings at A and B. IfC is held fixed and the turbine blades create a torque on the shaft that increases linearly fromzero at C to 2000 lb.ft at D, determine the angle of twist of the shaft at D relative to C. Also,calculate the absolute maximum shear stress in the shaft. Neglect the size of the blades. Step-by-step solution Step 1 of 6 Calculate the polar moment of inertia of a steel shaft. J = (D ) 32Here, D is the outer diameter of the pipe.Substitute 6 in for D. J = (6 ) 32 4 = 127.2345 in