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.

Solution

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
when object is placed beyond the center of concave mirror

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 ground level. Liquid conditions

Explain lower pair. and kinematics chair

Find out the maximum deflection in beam: A beam of span 8m is loaded with UDL of 10 kN/m over the middle half portion. Discover the maximum deflection. EI is constant. Sol

Navy divers are called to rescue a group of office workers trapped in a basement under floodwater in Leeds, UK. The only access to the basement is via a 1.5 x 1.5 m horizontal hatc

Determine the maximum torque - shaft: Determine the maximum torque that can be safely transmitted by a shaft of 400 mm diameter, if (a) the maximum allowable shear stress i


Objectives After studying this section, you should be capable to: define basic nature of plastics, differentiate between various types of plastics, define polym

Q.   Describe the principle of energy conversion. Show that the reaction of coupling magnetic field on the electrical or mechanical system is essential for the electro - mechanical

Overbridges, Fly-Overs And Underpasses: Railway Over-bridges Railway Over-bridges (ROB) are structures constructed to enable the road traffic to go over the railway t