Kerbal Space Program

Docking ports and hinges, servos and pistons connecting to another vessel tends to make Both vessels jump violently even at gravity of kerbin. Especially if any of those vessels stands with wheels, wheels gets broken, no matter how heavy vessel it will jump.

It might be just wheels making this behauviour but robotic parts seems to reinforce kraken. Should there be some physics assist after docked at surface to prevent this?