"centering" force ?

I have a disconnected graph. I use forcelayout3D.
Currently my different clusters repel each others and move away indefinitely...
Of course I need my nodes not to overlap, so repels is needed.
But when the clusters are in distinct positions, they should stop to move, no need for the node to run far away...
Is there a way to fix that ?

Start by reproducing the disconnected-graph case with forcelayout3D and read the simulator's force and centering behavior. Determine how separated clusters can settle without allowing nodes to overlap; done means disconnected clusters stop drifting indefinitely while repulsion still prevents overlap.

Written by the indexing model from the issue text.