Determine the percentage savings in the material, Mechanical Engineering

Determine the percentage savings in the material:

A hollow shaft containing an inside diameter 0.5 times the outer diameter is to replace the solid shaft of the similar material transmitting the similar power at the similar speed. Determine the percentage savings in the material.

Solution

di = 0.5 do

297_Determine the percentage savings in the material.png

PH = PS

NH = NS

∴          TH = TS

 (τmax ) H = (τmax )S

 (Z P ) H   = (Z P )S          

R = do /2

1891_Determine the percentage savings in the material1.png

 (Z P )Solid  =  (π /16 )d3

1738_Determine the percentage savings in the material2.png

D = 0.62 do

2073_Determine the percentage savings in the material3.png

% saving in material

= % reduction in area

= (AH - AS / AH )× 100

= (0.75 - 0.38 /0.75 )× 100

= 49.3%

Posted Date: 1/21/2013 4:40:32 AM | Location : United States







Related Discussions:- Determine the percentage savings in the material, Assignment Help, Ask Question on Determine the percentage savings in the material, Get Answer, Expert's Help, Determine the percentage savings in the material Discussions

Write discussion on Determine the percentage savings in the material
Your posts are moderated
Related Questions
Maximum permissible stress in belt: Q: A belt 100mm wide and 8.0mm thick are transmitting power at belt speed of 160m/minute.  The angle of lap for smaller pulley is 165º an

COMMON RULES CONCERNING CORRESPONDING OPTION:     Let us consider the DATA DIVISION entries as shown below. Now, let us see which data items will be moved if

Express the compression force C in the hydraulic cylinder of the car hoist in terms of the angle Θ, see Fig Q3. The mass of the hoist is negligible compared with the mass of the ve

Q. Steam and Power Generation Equipment? Locating steam and power generation equipment outside of the process areas ensures that critical facilities feeding major portions of t

Iron Powder Electrodes Iron powder is a widely used covering ingredient. It is incorporated in certain coverings to the extent of one half of the total weight. Iron Powder impart

Working of Engine Lubrication System: The oil flows from oil pump into the distribution chamber, where it is divided into two parts. One part enters into the right crankcase cove

write a VB programme that compute the binary ordering algorithm for unlimited number of machines and parts

Combustion Chamber ( or Clearance Volume ) : Combustion chamber is a space between the cylinder head and the piston top when the piston is at top dead center (TDC). The combustio

Explain Wilson HArtnell Governor

Q. Minimum Design Metal Temperature? The MDMT and coincident pressure shall be selected in consideration of the operating phases. Reliable administrative procedures to control