×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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.

Students Click Here

Spring fingers, can this be done

Spring fingers, can this be done

Spring fingers, can this be done

(OP)
   I am trying to determine if it's possible to turn over a 20 lbf, 8 inch high cylinder laying on its side using a round tubular section of spring steel slipped over the cylinder and mounted to its base.  The spring steel tube would have machined "fingers" that, when released, would curve away from the cylinder (relieving its residual stress) into a semicircular shape. By doing this, some of the "fingers" would push against the ground causing the cylinder to sit up on its base.  Once the cylinder is sitting on its base, the "fingers" could aid in stabilizing it.  I imagine there would be at least 10 "fingers".

   I have a simple model of this, but I am not sure how to attach it here.

   I have seen this done with small, lightweight cylinders.  My question is, how would I calculate the righting moment available from the "fingers" making contact with the ground.  I know the righting moment required.

   Thank you for any light you can shed on this problem.


RE: Spring fingers, can this be done

Hi Migon , maybe you can UPLOAD the drwaing to a web site .
you can use it
http://www.theswamp.org
open a new folder and up load your imagen

RE: Spring fingers, can this be done

milena0208

I think the you should notify all groups about http://www.theswamp.org it is an excelent idea. Thank you for this post

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! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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