×
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.

Students Click Here

How to calculate nutplate spacing method

How to calculate nutplate spacing method

How to calculate nutplate spacing method

(OP)
I'am designing a rocket skin and i want to assemble it with nutplates.
Is there a way to calculate the nutplate spacing of this part?

thank everyone.

RE: How to calculate nutplate spacing method

6-8-10D, like standard fastener spacing.

if you want to "fuss" it, you could ...
1) calculate the net area, or
2) align the a/nuts with the axial load, or
3) put the a/nuts on a separate nut plate (so the a/nut rivets don't go through the primary structure) and attach the nut plate with a minimum number of rivets.

another day in paradise, or is paradise one day closer ?

RE: How to calculate nutplate spacing method

Is Your rocket intended for 'one-time' or 'multiple' use.

Are You treating this like maintenance joint/panel and/or a true structural splice joint?

One row of fasteners or multiple rows of fasteners?

Are Your skins and joints designed to minimum thicknesses and mass? Or are you willing to add weight as a sacrifice for the ability to separate sections for various purposes and maintain durability flight-after-flight?

Individual 1-lug nutplate would have to used, oriented axially, to minimize installation problems with a round-body-contour... and ensure that installation rivets NEVER align adjacent to each-other [serious stress concentration].

Have You considered Gang-Channel Nutplates... or 'mounting single nutplates-on sheet-metal strip', roll-formed to precise inner/outer body contours [tight/precise fit]?

Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]

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



News


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