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Static study links: contact vs parametric

Question asked by Bob Thesponge on Feb 26, 2015
Latest reply on Mar 3, 2015 by Jared Conway

Hi all,

 

NOTE: my question is rather general and related to how SW simulation is supposed to be used. Now I use a down to earth example to make things easier to understand.

 

My question relates to how internal mechanical links should be simulated inside SW simulation. Here is my test setup:

 

So I set up a static study aimed at simulating a minimalist slide link (see the provided concept view). Kinematically speaking I can define the slide link inside the SW modeler with mates so the carriage (yellow) nicely slides on the rail (grey).

 

Slide.jpg

 

Now when simulating the mechanism the mates setup in the modeler are not used to define the mechanical link. As far as I understand mates are just not compatible with SW simulation (even the special mechanical mates) and you need to redefine the link inside the simulation plugin in one way or in another.

 

Now in order to simulate the mechanical link I was expecting to find a parametric prismatic link (or say connector, as I understand this is how internal links are called) within the simulation plugin. I was very surprised to find no such connector. Actually you do not find the usual mechanical links within the connector options (you find spring, bolt, weld... when I was expecting pivot, prismatic, ball and socket...).

 

All you are left with is "exotic" links and contacts, so as I did not find the expected links inside the connectors option I investigated the contacts simulation (no penetration). My first remark is that it seems overkill to me to use contacts to simulate a usual mechanical link (simulation times ramp up dramatically): is using contact to simulate mechanical links a standard way to go? Is there no parametric way to define a mechanical link between two meshes?

 

Kind regards,

 

Antoine.

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