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!
  • Students Click Here

*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


Help in my knee exo-skeleton project

Help in my knee exo-skeleton project

Help in my knee exo-skeleton project

Hey guys, im trying to design a knee exoskeleton which serves to reduce the impact on the knee joints. The purpose of this exo-skeleton is NOT to aid in running but it serves to reduce the impact taken by the knees so as to reduce wear and tear and degradation of the knee. The target audience would be the elderly as well as people who suffer from knee pains, joint problems.

- My request to you guys would be if you could please let me know what are the important factors that i should take note when designing the exoskeleton ( maybe even provide a simple sketch , that would be great! )
- also do let me know the main forces that act on the knee and how i should design the exo - skeleton to counter-act these forces.
- also do point out anything major that i may have missed and would be important to include in my design.

Thanks so much guys and do hope that you can help me in my project :D

RE: Help in my knee exo-skeleton project

Thanks rstupplebeen ! will have a look through it. Any idea of how to go about designing it ?

RE: Help in my knee exo-skeleton project

I have had the misfortune to buy several knee braces over the years.

They all suffer from the same deficiency; rotation in service. Most of them include a hole, sometimes padded, that surrounds the kneecap, which is apparently intended to serve as a key. It doesn't work; after several hours, the braces have worked their way around so that the hole no longer aligns with the kneecap, and then the braces with landau bar hinges on their sides have put one of the landau bars in front of the kneecap and the other behind the knee, so the knee can no longer rotate at all, and the pressure on the kneecap becomes painful.

You might do well to spend some hours hanging out in a shop where artificial legs are fitted; their alignment and retention needs are obviously critical, and some clever solutions have been devised to deal with the anatomy|mechanism interfaces.

Mike Halloran
Pembroke Pines, FL, USA

RE: Help in my knee exo-skeleton project

@IRstuff , no this is not regarding school nor am i a student. Regarding the other comments, thanks guys, i would have a look at them and do keep me updated if you come across interesting links. Thanks !

RE: Help in my knee exo-skeleton project

Hi IceBreakerSours, could you pls provide me some links or documents regarding these models? thanks !

RE: Help in my knee exo-skeleton project

Thanks IRstuff . Do you have any experience in using the OpenSim software ?

RE: Help in my knee exo-skeleton project

Hey guys, i was thinking of a design which basically incorporates a knee guard that has 2 pneumatic cylinders (one on each side of the knee ) as well as small shock absorbers. What do you guys think of the idea >

RE: Help in my knee exo-skeleton project

Does anyone know how to build a series elastic acutator or maybe buy one ?

RE: Help in my knee exo-skeleton project


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!


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