Why do we use solid shafts for transfer of power in case of
pumps/ turbines & other machines why we use a hollow shaft
(pipe) in universal joints of automobiles; although the
rated load and twist is approx. the same?

Answer Posted / mc

Although the rated load and twist may be ~ the same, a "hollow shaft" (pipe) is used in universal joints of automobiles for several reasons. The "moment of inertia" of the entire section is reduced because of the fact that there is a decreased cross-sectional area. Pipe offers a high quality strength to weight ratio (Strong + Light Weight) which automobiles require to improve gas mileage. The deflection of a solid shaft compared to a pipe is insignificant, pipe offers a substantially larger tolerance of deflection.

Is This Answer Correct ?    5 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Explain the procedure of charging reciprocating compressor?

2183


What is the difference between air conditioning and refrigeration?

616


Identify the parts of indicator diagram?

1450


sir, I am applied RRB chennai,for Section engineer (mechanical),Pls mail 2007,2007 & 2008 years solved question papers.My Mail Id:nathan_cs65@yahoo.com Thanking you

1570


What are the factors affecting the thermal conductivity?

619






What is function (in details) room sensor and tube or coil sensor in HVAC system?

1131


how you can define coal ?

649


How to Start Boiler Electrical Feed Pump? I mean to How to Charge it?

1452


How does a modern submarine move?

628


Explain the advantages of powder metallurgy?

705


why we use kg/cm2 in pressure gauge not kg/m2

2700


In order to derive the torsional formulas what are the assumptions taken?

616


What type of pump is commonly used is feed water system in auxiliary boiler?

1360


"When you will install a new piston ring, what will be the position of it?"

1404


State the laws of thermodynamics and its importance of in mechanical engineering.

603