Designing a Helical Compression Spring with Limited Information

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Discussion Overview

The discussion focuses on the design of a helical compression spring with limited information, specifically given only the pressure and the maximum length of compression. Participants explore the challenges of determining the necessary parameters for spring design without knowing the force applied or the material properties.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant questions how to design a spring with only pressure and maximum compression length, noting the absence of force information.
  • Another participant suggests that springs experience torsional and bending loads and recommends converting pressure into these loads to determine a suitable diameter.
  • A participant expresses difficulty in converting pressure to force, reiterating the lack of information on spring material.
  • One response indicates that spring manufacturers provide tables for material properties and deflection rates, suggesting that material selection can guide overall spring size, with length being determined last.

Areas of Agreement / Disagreement

Participants express varying approaches to the problem, with no consensus on a definitive method for designing the spring given the limited information. Multiple perspectives on how to proceed remain evident.

Contextual Notes

Participants highlight limitations such as the absence of force and material information, which are critical for accurate spring design. The discussion does not resolve these uncertainties.

Who May Find This Useful

Individuals interested in mechanical engineering, spring design, or those facing similar challenges in applying theoretical concepts to practical problems may find this discussion relevant.

gogo1
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How do I design a spring given only pressure and the the maximum length by which it can be compressed. I tried using the formula P=F/A but I don't have the force to be applied on that spring.
 
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Pressure on the whole spring? From what I remember, springs carry torsional loads and bending loads. You can start by converting the given pressure into these. Then find a suitable diameter.
 
helical compression spring design

I've been trying to convert the pressure to force but I couldn't.The only given quantities are the spring pressure and the maximum length by which it can be compressed. Not given the spring material.
 
Any spring manufacture will have tables of spring materials and their rate per unit of deflection. From there you can decide what material to use and then the overall size of the spring. The length will usually be the last item to be arrived at based on the available room. You can go other ways but this is usually the simplest approach.
 
Thank you jmeps, you really helped me.
 

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