Fluid Mechanics: Hydraulic Lift

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SUMMARY

The discussion centers on calculating the gauge pressure required to lift a car using a hydraulic lift with a piston diameter of 0.30m and a car mass of 1200kg. The user initially calculated the pressure in Pascals but expressed uncertainty regarding the gauge pressure aspect. A participant confirmed that the user's approach was correct, indicating that the method used aligns with established principles of fluid mechanics.

PREREQUISITES
  • Understanding of Pascal's Law in fluid mechanics
  • Basic knowledge of pressure calculations in pascals
  • Familiarity with hydraulic systems and their components
  • Ability to perform unit conversions and area calculations
NEXT STEPS
  • Study the application of Pascal's Law in hydraulic systems
  • Learn how to calculate gauge pressure specifically
  • Explore the relationship between force, area, and pressure in hydraulics
  • Investigate common hydraulic lift designs and their operational principles
USEFUL FOR

Engineering students, mechanical engineers, and professionals working with hydraulic systems will benefit from this discussion, particularly those focused on automotive applications and fluid mechanics principles.

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Hi,
I have here a problem that I've been working on, and am not sure if I've gone about it correctly. The method I chose seems too simple, and I was wondering if someone could go over the answer that I've found, and let me know if I'm doing this right.The problem:
The piston of a hydraulic automobile lift is 0.30m in diameter. What gauge pressure, in pascals, is required to lift a car with a mass of 1200kg?

First off, I just calculated it in Pascales, and haven't done the gauge pressure thing yet, but this is the answer that I have come across (Attached)
http://www.synthdriven.com/images/deletable/14_help01.jpg Again, this seems too simple... If I'm going about this the wrong way, I think I'm just having difficulty organizing the problem. Am I going in the right direction? Thanks,
HM
 
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I think your steps are correct.
 

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