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Exhaust Car Jack

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HELLO ALL DESIGNER

 

im undergraduate student from Malaysia...

 

 

we have to design car jack for our project..

so we decide to design exhaust car jack..

 

http://cache.gawkerassets.com/assets/images/4/2008/04/exhaustjack.jpg

 

we are facing problem on the calculation of pressure on the jack

 

which formula/ laws need to use...

 

anyone can help?

 

 

 

 

 

Sry for my bad English

post-52624-0-30024500-1319884822.jpg

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Hello - the balloon is a pressure vessel

the force of the car must be equaled by the force in the balloon pushing up.

Pressure equals force/area.

find the cross sectional area of the balloon (pi x radius x radius) - the max radius parallel to the ground.

Lifting half the car from the side use half it's mass x gravity to give the force.

This allows the pressure to be calculated

use pressure vesel calculations to find the stress produced in the material.

 

AC

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