Constraining deformable parts
Constraining deformable parts
(OP)
Hi all,
We have a problem with an deformable parts an constraining it in an assembly.
The deformable part is a simple spring created with a helix and an tube-command.
The easiest way to constrain this spring would be to use the coordinate system I think, but all kind of strange things are happening than; it flips, it moves in small steps, all constrains in the assembly are over-constrained, etc....
I tried it with different springs in different assemblies but all with the same result.
I also tried it with a deformable block. Constraining on the faces of the block gives no problem, but constraining on the coordinate system gives the same problem like with the spring.
Adding a extra coordinate system to the part helps a bit, but it's still reacting strange.
So is it possible to use the coordinate system to constrain a deformable part?
I found one old post that called constrains and deformable parts are a bad combination, and that therefore deformable parts can't be used in assemblies.
Deformable parts was called a total useless function in assemblies and that you should use "Reference sets".
Is it really so bad with deformable parts???
Thanks in advance,
Tjeerd
We have a problem with an deformable parts an constraining it in an assembly.
The deformable part is a simple spring created with a helix and an tube-command.
The easiest way to constrain this spring would be to use the coordinate system I think, but all kind of strange things are happening than; it flips, it moves in small steps, all constrains in the assembly are over-constrained, etc....
I tried it with different springs in different assemblies but all with the same result.
I also tried it with a deformable block. Constraining on the faces of the block gives no problem, but constraining on the coordinate system gives the same problem like with the spring.
Adding a extra coordinate system to the part helps a bit, but it's still reacting strange.
So is it possible to use the coordinate system to constrain a deformable part?
I found one old post that called constrains and deformable parts are a bad combination, and that therefore deformable parts can't be used in assemblies.
Deformable parts was called a total useless function in assemblies and that you should use "Reference sets".
Is it really so bad with deformable parts???
Thanks in advance,
Tjeerd
Using NX 8.0 and Teamcenter 8 on Windows 7 (64)





RE: Constraining deformable parts
RE: Constraining deformable parts
That is indeed a total different way to create a spring. But in this way you have a good control over the beginning and the end of the spring.
I will have a good look at it and will test it.
Thanks again.
Using NX 8.0 and Teamcenter 8 on Windows 7 (64)
RE: Constraining deformable parts
The 'helix' used in this example was created as a single curve using only the interactive, and fully parametric feature-based, options found in the new Helix Curve dialog.
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
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RE: Constraining deformable parts
We have plans to go to NX9 or maybe NX10 this summer.
Using NX 8.0 and Teamcenter 8 on Windows 7 (64)