Hi All,

We are facing problem in modeling a Pipe which is supported by a turnbuckle. The turn buckle has freedom to move in CII Z - axis and X - axis. (Please find the attached figure).

Can anybody guide me on how to model such a complex arrangement in CII.

All help is appreciated.

Thanks,
Yuva

IMHO, Simplify it.

No, better to scrap it.

What purpose do the springs have, given that the turnbuckles appear to prevent the pipe moving vertically ?

What does the arrangement actually achieve ? Are the springs to be removed ?

IF you really want to use such a wierd design, consider this:

How far does the pipe move axially ?

Do you really need to include all those links in an analysis model ?

You might be ok modelling a transverse guide alone, in addition to the spring units (or vertical support if removed). That would make some sense at least.

Thanks.

Springs will be removed (it was in earlier arrangement). Turn buckle is similar to link 130 (in Ansys) which takes tensile load in its axis but can not take any bending/moment/compression load. It is like a rope. Is there any method of simulating this movement in CAESAR.

Turnbuckle is used to prevent excessive movement in X,Z direction as it is mounted on oscillating platform

It would have been helpful if you had desccribed the problem better, e.g. removal of springs.

Check out the Caesar II User Guide regarding hangers and large displacements.

Unless you think the two tie-rods may unload axially, together they will prevent any lateral movement, leaving only a pendulum movement in the axial direction. If some amount of resulting vertical movement is not important, modelling a simple guide would suffice.