I'm slowly grinding through the tutorials in the getting started guide and would like to try and build on the chain link pendulum example.
Firstly I tried to fix the end of the pendulum, so that the chain would drape. Screenshot of my model below.
Then my second goal is to create a horizontal roller support, so that the rotational springs could hold it in position through their rotational stiffness.
I'd genuinely appreciate any guidance on how to create a horizontal roller, or create multiple support points.
*The spirals are revolute joints, with springs and dampeners attached. If I remove the fixed translation component, the model functions quite happily as a chain pendulum.
All help gratefully received.
Brilliant, thank you very much. It was the addition of the special revolute joint at the end to prevent it being a planar loop that was eluding me.
I see. You can modify my above model slightly:
This will generate a simulation that looks like this:
You can add forces with the Modelica.Mechanics.MultiBody.Forces library.
Diagram below of what I would like to achieve as a system, once stable I would like to place forces and/or accelerations to the red nodes.
I hope this makes sense...
Thanks for the response.
What I'd like to create are two supports, with a prescribed distance between them.
Between these two supports will be a series of links, whose total combined length would be greater than the distance between the supports.
Using revolute joints between each link, I would like to model the links so they drape between the two supports under their selfweight.
The idea being that I could reverse the geometry, include rotational springs on the revolute joints and make a springy arch that can support loads, with its load carrying capacity being driven by the stiffness of the springs.
I hope this makes sense, I'm not near a scanner for a few days else I would draw a sketch.
Not sure what you want to accomplish. Can you show a picture or a sketch of the system or mechanism that you are trying to model?
Here's a model with two supports: