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Subject: Re: STRUCT How to tighten a screw to compression in body
Author: Keith Gallagher
Date: 2008-04-07 17:21:00

The sload command allows settign a relative displacement. I would suggest:

1) Set a ballpark displacement on the pretension element and solve
2) Set up a negative pretension load for ls#2 and lock in ls#3.

I did something similar to this a lond time ago but can't remember if there was specifically a negative load.
I'd try it on a small test model.

Keith Gallagher
Lead Engineer/ Project Manager
Belcan Corporation
Advanced Engineering & Technology Division
513-985-7443 (Tel)
513-985-7238 (Fax)
kgallagher_at_belcan.com (email)



-----Original Message-----
From: xansys-bounces_at_xansys.org [mailto:xansys-bounces_at_xansys.org] On Behalf Of Jan Christian Anker
Sent: Monday, April 07, 2008 2:52 PM
To: ANSYS User Discussion List
Subject: RE: [Xansys] STRUCT How to tighten a screw to compression in body

Hei,

we have (once upon a time) successfully utilized EKILL/EALIVE to do pretensioning of bolts. It might work for your problem.

Best Regards,
Jan Christian Anker

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Posts possibly associated with message #92721AuthorDateScore
92719STRUCT How to tighten a screw to compression in bodyOdd Einar Lindøe2008/04/07 
92721Re: STRUCT How to tighten a screw to compression in bodyKeith Gallagher2008/04/07 
92722Re: STRUCT How to tighten a screw to compression in bodyJan Christian Anker2008/04/07 
92727Re: STRUCT How to tighten a screw to compression in bodyOdd Einar Lindøe2008/04/07