Understanding Force Diagrams for Hydraulic Cylinder Selection

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SUMMARY

This discussion focuses on the selection of hydraulic cylinders for counter-balancing forces, emphasizing the importance of understanding force diagrams. The participants agree that while friction plays a role, it can often be ignored in calculations, particularly when considering the angle of connection. The horizontal component of force F2 is typically used for determining the required exertion of the hydraulic cylinder. An Excel file with calculations was shared to aid in understanding the mechanics involved.

PREREQUISITES
  • Understanding of hydraulic systems and their components
  • Familiarity with force diagrams and vector analysis
  • Basic knowledge of friction coefficients and their implications
  • Proficiency in using Excel for mathematical calculations
NEXT STEPS
  • Research hydraulic cylinder specifications and selection criteria
  • Learn about force diagram analysis in mechanical systems
  • Explore the impact of friction in hydraulic applications
  • Study advanced Excel techniques for engineering calculations
USEFUL FOR

Mechanical engineers, hydraulic system designers, and anyone involved in the selection and application of hydraulic cylinders in engineering projects.

cjpa
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Hello world,

I have to select an hydraulic cylinder to counter-balance a force. For that purpose I need to know the force that my hydraulic cylinder must exert. Typically I would use the horizontal part of F2, but being that force with diferent degrees, doen't my friction play an important role? usually I don't consider it... can anyone, please, help
me solve this. I am having a bit of a trouble understanding this mechanism's force diagram...
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You will need some minimal coefficient of friction to prevent the block from sliding, but if you have that the type of connection does not matter.
 
Thanks for you kind reply mfb.

Well, I've been struggling with this all night and I have finally been able to do the math, the thing is it does matter, the degree of the connection. And it is loggical if you think on the "limit" of the angles for each. yet, the friction plays a minor role, and therefore can be ignored.

i'll attach an excel with some simple math solving this.
(please, if you find any error let me know)
 

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