How to implement end position cushioning in a double-acting pneumatic cylinder?

I would like to simulate a double-acting pneumatic cylinder. So far, I have used two translational mechanical converters working against each other, which works quite well. How can I implement end position cushioning now?

Answer 1

[Todd]

If your cushion works by cutting off air flow out of the cylinder, you can model it as an orifice with an area that changes with cylinder position.