Fraunhofer Institute has released simulation software to help shipbuilders avoid excessive engine-generated vibration at early design stages. The software guides engineers in developing and simulating elements of adaptronic ship structures, or those that incorporate actuators and sensors for self-monitoring and control of vibrations.

The institute claims the Mechanical Simulation Toolbox is the first simulation solution available for such adaptronic systems. It says advantages include saving time and costs by eliminating prototypes and moving subsystem design to the beginning.

Fraunhofer Institute developed software that simulates adaptronic systems for reducing vibration on cargo ships. Vibration on mobile machinery can be significant, stressing and damaging structures or components. The problem is exacerbated on large cargo and passenger ships, where 60,000 kilowatt engines rattle hull, deck and structures, from pipes and connectors to drive train parts and the crew.

Springs and damping materials can reduce vibration of decks, bridges, and engine, or transmission mounts. But using such mechanical solutions can be limited, especially as efficiency goals often require smaller and lighter vessels.

That’s where adaptronic systems can assist, according to Heiko Atzrodt, managing director of the Fraunhofer Alliance Adaptronics. Adaptronic system components convert electrical energy into mechanical energy, thereby actively counteracting the vibrations. The software simulates vibration and the required elements for controlling it.

The simulation software is not limited to shipbuilding, Atzrodt says. “It can be used wherever vibrations occur.”