Hydraulic ram force calculation help?

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Discussion Overview

The discussion revolves around calculating the force exerted by a hydraulic ram, specifically focusing on the relationship between piston diameter, oil pressure, and the resulting force in Newtons. The context includes a homework problem involving unit conversions and formula application.

Discussion Character

  • Homework-related

Main Points Raised

  • Jim inquires about the formula to calculate the force of a hydraulic ram given a piston diameter of 20mm and an oil pressure of 52 bars, expressing difficulty in finding resources that use metric units.
  • One participant questions whether the units of Newtons, mm, and bars are consistent for the calculation.
  • Jim acknowledges uncertainty about the units and expresses concern about his understanding while working on a college homework assignment.
  • Another participant requests Jim to share the formula he found online to facilitate the discussion.
  • Jim clarifies that he understands the need to multiply pressure by the area of the piston but is unsure about necessary conversions.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the unit consistency or the specific formula to use, and the discussion remains unresolved regarding the calculations and conversions needed.

Contextual Notes

There is uncertainty regarding the appropriate unit conversions and whether the provided measurements are compatible for the calculations.

rockabillyjim
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Hi, I was wondering how to calculate the force of a hydraulic ram in Newtons if the piston diametre is 20mm and the oil pressure is 52 bars. I would like it if someone could explain the formula as i can only find it with psi and imperial units on google. Also I have the shaft diametre of 4mm, I don't know if this is relevant

Thanks
Jim
 
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Formulas are generally given so that they work with consistent units. Are Newtons, mm, and bars consistent units?
 
I don't know. I probably sound a bit thick but I'm doing some homework for college and its beyond me.
 
Well, show us the formula you found online. We can start with that.
 
Ok here is the question. Calculate the force of the hydraulic ram when the oil pressure is 52 bars, the piston diameter is 20mm and the rod diameter is 4mm. I understand that I multiply the pressure by the area of the piston but I'm not sure weather I need to convert anything.
Thanks
 

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