Learning Forum

[Sergey Zhmaev]

I need to apply a force on the edge at the end of the cylinder while accounting for changes in node density as the cylinder compresses. Can I achieve this without creating additional geometry?

The cylinder represents a simple cantilever design, with one end fixed and the other end forced downward. Currently, I am using a Remote Force with a small pinball region, so the force is applied nearly at a single point on the cylinder’s edge. However, I don’t think this is an ideal approach since the number of nodes affected by the force increases as the force magnitude grows (especially in the case of a very thin cylinder).

Ideally, I’d like to simulate this as if a purple rectangular block is pushing down on the cylinder—without actually creating that rectangular geometry.

 

[Erik Kostson]

Hi

Just apply a nodal force to the nodes you think are involved in this. Or split the edge up and apply a force to that split edge, or if you need the contact to be accounted, model that block, and have a simple edge to edge contact, etc.

All the best

Erik

[Sergey Zhmaev]

Thanks for a reply

The issue is that I don’t know how many nodes will be involved, and I don’t want to create the block and set up contact between them. I want to control the pinball region of the Remote Force so that it adjusts dynamically as the force is applied.

Is this achievable?

[SHELL]

Unfortunately, this may be difficult to achieve with just a Remote Force. Even if the Pinball Radius would adjust dynamically, it will not cover the appropriate force distribution across the affected nodes. Modelling the body coming into contact (could be a rigid body though) will probably be your best option.