A 5-m steel shaft rotating at 2 Hz has 70 kW applied at a gear that is 2 m from the left end where 20 kW are removed. At the right end, 30 kW are removed and another 20 kW leaves the shaft at 1.5 m from the right end. (a) Find the uniform shaft diameter so that the shearing stress will not exceed 60 MPa. (b) If a uniform shaft diameter of 100 mm is specified, determine the angle by which one end of the shaft lags behind the other end. Use G = 83 GPa.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A 5-m steel shaft rotating at 2 Hz has 70 kW applied at a gear that is 2 m from the left
end where 20 kW are removed. At the right end, 30 kW are removed and another 20
kW leaves the shaft at 1.5 m from the right end. (a) Find the uniform shaft diameter
so that the shearing stress will not exceed 60 MPa. (b) If a uniform shaft diameter of
100 mm is specified, determine the angle by which one end of the shaft lags behind
the other end. Use G = 83 GPa.
Transcribed Image Text:Problem A 5-m steel shaft rotating at 2 Hz has 70 kW applied at a gear that is 2 m from the left end where 20 kW are removed. At the right end, 30 kW are removed and another 20 kW leaves the shaft at 1.5 m from the right end. (a) Find the uniform shaft diameter so that the shearing stress will not exceed 60 MPa. (b) If a uniform shaft diameter of 100 mm is specified, determine the angle by which one end of the shaft lags behind the other end. Use G = 83 GPa.
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