×
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!
  • 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

Jobs

Pull apart telescoping tube assembly

Pull apart telescoping tube assembly

Pull apart telescoping tube assembly

(OP)
I'm looking for the value, but preferably the reference, to determine the force needed in the following scenerio.
Cross-posted from Human Factor/Ergonomics forum because I haven't got an answer there yet and I really want a MIL-Spec.
---------------------

I have an above average male (95%tile) holding a telescoping tube assembly in front of his chest.  The assembly is parrallel to the floor.  The male is holding the tube on the top, with palms facing down.  His hands are spaced approximately shoulder width apart.

How much force can this male excert in trying to seperate the two tubes?

A MIL-Spec would be best, but any commercial/industrial standard will suffice.

Thanks,

--Scott

For some pleasure reading, try FAQ731-376

RE: Pull apart telescoping tube assembly

Didn't see anything specifically applicable here, but it's something...

http://www.deepsloweasy.com/html/hferesources.htm

DEF STAN on HFE part 3 talks about strength, only as applicable to military activities.

TTFN



RE: Pull apart telescoping tube assembly

Search "Human Engineering" on the Assist site... don't know which particular one has the information you need, but it's a place to start.

http://assist.daps.dla.mil/quicksearch/

RE: Pull apart telescoping tube assembly

The motion you describe is like a reverse-fly in weight-lifting, so there may be some information to be found there.

TTFN



RE: Pull apart telescoping tube assembly

I guess the NIOSH lifting manual would not help you, but as a initial guess 25lbs. Do an experiment yourself with fly fishing leaders as they come as low as two pounds tensile strength and go up in tensile strength.  

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