Dynamic bellows 2

[swfan]

I have constructed some bellows in an assembly that will expand and contract when I move the parts to which it is attached but only after "ctrl Q". I'm sure I should be able to do this dynamically but I can't think how to do it, can
anyone advise me please.

 

[Eltron]

Could you please post your files? There could be a bunch of different things going on.

Dan

http://www.eltronresearch.com

Dan's Blog

 

[swfan]

Dan,
Files posted. This is a crude set of parts just to see if I could make it work.

Peter

 

[Eltron]

I am unable to extract the zip file.

Dan

http://www.eltronresearch.com

Dan's Blog

 

[CorBlimeyLimey]

The ZIP file shows as being empty but, when trying to extract anyway, Windows blocks it for security reasons.

 

[swfan]

Zip file opens O.K. on my computer but I have now uploaded individual files,

Thanks.

 

[Eltron]

You've uploaded an original file. All that is there is a simple disc.

Dan

http://www.eltronresearch.com

Dan's Blog

 

[ENzo36]

What is this?! a simple disk it doesn't like belows, what is your question realy?can you explain your question,
Is belows Expansion joint? whare you want to assemble these belows?

 

[swfan]

This should be the assembly file

 

[swfan]

And this should be the bellows.

 

[CorBlimeyLimey]

SW does not have the ability to show dynamic movement of 3D models of bellows, springs, etc. The nearest will be using configurations to show the extents, and switching between configs. If incremental configs are made, a video can be recorded of the steps. A macro exists to do this.

Dynamic visualisation can be achieved in 2D layout sketches.

 

[Eltron]

CBL you can cheat on the spring dynamics in SW. Unfortunately, a bellows isn't as easy to dynamically model as a hinge or a spring. SW kind of falls on its face here. I'd stick with the sagely advice of the Limey on this one.

Dan

http://www.eltronresearch.com

Dan's Blog

 

[CorBlimeyLimey]

Can any other mid-range modeller do this ... without special add-ins or modules?

 

[swfan]

Looks like I will have to make do with a regen whenever I want to change positions. Thanks for your help everyone.

Peter

 

[ENzo36]

Dear SWFan;
This job can’t handle by solid works or any other cad modelers;This job handled by FEA analyzers, cad modelers only can create a solid model that they can show us a volume of solid. if you want to make some dynamical analysis on this solid models that you use them as part of machine in one assembly; then you can only perform dynamical analysis for showing the relations between your mechanisms and it’s kinematics, that means the solid models just can have physical characters like: Velocity, accelerate & displacements, none of this characters contain no deflection or deformation on the solid model, but if you want to perform a simulations that the forces cause to changing on the volume of solid such as deflection or deformations; then the solid model must be meshed, that means your solid model estimated by rectangular or polygonal or etc members then you can see the volume changes on your parts that some forces effect them. This job must be handled by FEA Software’s such as MSC NASTRAN, ANSYS, COSMOS and etc.
It this assembly you have a revolved solid that has two caps at the end of it you can do this analysis to obtain the solid deformation and displacements that occurred when you apply a force on it, you can use Cosmos for it,
I have a analysis like this that I do it in ANSYS, in this study an expansion joint was effected by force in outward of cylinder (Reverse mode is your study) you can see the solid that estimated by FE (FINITE ELEMENT) members, in this case I use paver mashing method.

attached file is animated move!

http://www.mechanicalmates.persianblog.ir

amae36@gmail.com