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

Transfer of force through non-magnetic conductor

Transfer of force through non-magnetic conductor

Transfer of force through non-magnetic conductor

We are looking into the possibility of constructing a device (probably using electromagnets) that can transfer a high shear force from the source, to another magnetic item.  This is a bit like the old trick of having a paperclip on a sheet of paper and a magnet underneath - move the magnet and the clip moves about, etc.  The only thing is, the forces resisting the horizontal movement are going to be high (in the order of 200 kN).  Additionally, the magnets cannot touch the separating surface because they will be moving at high speed so there is going to be a relatively large gap.  Does this sound feasible?  Are there any sources of info on the web for this sort of thing?  Or, does anyone know of any companies that might be able to help.  Any information is greatly appreciated.

RE: Transfer of force through non-magnetic conductor

Yes, it sounds feasible (the shear force will be only a matter of dimensioning), but it all depends on so many things...
First of all you should decide whether you need electromagnets (that you can turn off and on) or permanent magnets.
Other unordered questions that come to mind:
1)What kind is the resisting force? (viscous, elastic, gravitational,...)
2)Is this force influenced by the attraction between the driving magnet and the clip? (friction)
3)How do you plan to keep the driving magnet at distance from the clip?
4)Description of movement for both the driving magnet and the clip?
In my searches of design data for complex magnetic systems in both the literature and the web, I didn't find anything really useful so far.
If you can get in touch with a company working on maglev trains, this could be useful.
If your project is really interesting I might collaborate (I design permanent magnet brakes for rail vehicles).
Good luck.

Online tools for structural design

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


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