How to model the boat sailing on the water surface with springs/ connectors?

[yinqilin]

Hi guys,

I want to model the boat sailing on the water surface in Abaqus with Explicit solver. To consider the buoyancy, I think of a way of setting springs on the reference point of the boat. In detail, When the boat is lifted up, the spring on the vertical direction will pull the boat back. When the prow of the boat rises and the stern drops the rotating spring will pull them back to the initial horizontal direction. However the question is the spring is not available in explicit solver. So I turned to using the connectors. But I am not sure how the connectors are used in this case. Can any one give me some advises? I will be grateful for any suggestions!
Thank you.

 

[Mustaine3]

You could use a connector from type Bushing and add elasticity in all 6 DOF.

 

[yinqilin]

Thanks a lot. I will try the way. Due to symmetry, the boat has no motion in some direction (including translation and rotation), does it mean that I shall not tog on the corresponding stiffness? And an initial velocity is set on the forward direction, with no resistance. What shall I do with this stiffness? The attachment is my setting. May you have a look.
Thanks.