Compute the outside diameter of the shaft, Mechanical Engineering

Compute the outside diameter of the shaft:

A hollow shaft of diameter ratio is 0.4 is needed to transit 600 kW at 120 rpm. The maximum torque being 20% greater than the mean torque. The shear stress is restricted to 60 N/mm2 and the lowest of 0.01 radians per unit length. Compute the outside diameter of the shaft. Take G = 0.8 × 105 N/mm2.


di / do   = 0.4

di  = 0.4 do

475_Compute the outside diameter of the shaft.png

R = do/ 2

P = 600 kN, N = 120 rpm,  P = 2π NT  /60

600 × 103  =( 2π× 120T )/60

∴          T = 47.7 × 103 N-m

Tmax  = 1.2 T = 1.2 × 47.7 × 103  = 57.3 × 103  N-m

τmax  = 60 N/mm2  = 60 × 106  N/m2

 Tmax  = τmax  × Z P

⇒         57.3 × 103  = 60 × 106  × 0.19

∴          do  = 0.17 m

Tmax / J = G θ/ l

225_Compute the outside diameter of the shaft2.png

∴          do = 0.165 m

∴          do = 0.17 m = 170 mm

Posted Date: 1/21/2013 4:37:06 AM | Location : United States

Related Discussions:- Compute the outside diameter of the shaft, Assignment Help, Ask Question on Compute the outside diameter of the shaft, Get Answer, Expert's Help, Compute the outside diameter of the shaft Discussions

Write discussion on Compute the outside diameter of the shaft
Your posts are moderated
Related Questions

Calculate the Net Positive Suction Head A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifugal pump mounted at groun

Q.   For an electromagnetic system, show that the energy stored in a magnetic field is equal to the area enclosed b/w magnetization curves for open and closed position of the armat

Illustrate how the efficiency of Rankine Cycle can be improved by the use of Regenerative and Reheat heating. (b) During a test on boiler trial the following data were obtained

what are the anti refection coating.expretion for thicknessrefractive index of coating material to act as anti reflacting coating


The Mechanical Engineer/Specialist shall be responsible for specifying Vendor Drawings and Data Requirements in the MRQ and MRP using the WorleyParsons standard vendor drawing and

what is mean by precipitation hardening?

A 54 kg chandelier is suspended 1.5 m below a ceiling by 3 wires, each of which has the similar tension and the similar length of 2.0 m (see the drawing). Find the tension in every

Di fferentiate between strength of material and engineering mechanics Sol.: Three primary areas of mechanics of solids are statics, dynamics and the strength of materials.