INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Motion Ratio of Spring/Shock in 3d Analysis

Motion Ratio of Spring/Shock in 3d Analysis

(OP)
Hello everyone, I am trying to calculate the motion ratio of a shock/spring (coil-over) in a double wishbone front suspension design. There are many tools and equations for 2d analysis, however I am working in three dimensions. I am needing the equation to derive the motion ratio for a program I am developing. I have a 3d front suspension program I am using to validate my code, but I cannot get the same values they have for motion ratio.

Does anyone know how to calculate the 3d motion ratio? I can provide sample dimensions and values, however it would be hard to make sense of.

RE: Motion Ratio of Spring/Shock in 3d Analysis

Or use a 3D vector algebra based suspension analysis tool. They are available. Even in Excel.

Cheers,
dynatune

RE: Motion Ratio of Spring/Shock in 3d Analysis

Does your geometry cause a progressive rate giving you a variable motion ratio?

RE: Motion Ratio of Spring/Shock in 3d Analysis

Fixed motion ratio would be the exception rather than the rule.

An empirical method (plot spring deflection vs wheel deflection across several points) is the usual way. Then fit a function if required.

je suis charlie

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close