An EU-funded project has shown how smart materials and structures can be used by the European shipbuilding industry to produce vessels that are more adaptable to a variety of maritime environments.
Some of the project results – such as innovative glass, coatings and insulation materials – yield significant energy savings and have been deemed mature enough for commercialisation. Other results, for example adaptive hull structures, have proven to be feasible, but will require further research, development and testing before being ready for market introduction.
Key project results
One of the more promising results was the development of a pneumatically-driven adaptive stern flap that was found to improve the efficiency of RoPax vessels (designed to carry wheeled cargo) and save fuel.
The stern flap can be lowered and retracted depending on the changing operational environment of the ship. The technology also benefits from low installation costs.
Another development conceived by the project involved creating adaptive damping systems for thrusters in order to increase comfort levels on cruise vessels. Bow thrusters often produce high levels of noise and vibration but the easily-installed active control system reduces vibrations in areas where local modes are matched with the bow thruster excitation frequency.
Lightweight composite panels also create significant savings in structural weight, thereby increasing the ship’s cargo-carrying capacity. Maintenance costs are also reduced as composite materials do not corrode.
A fourth innovation devised by the project team is a new energy-saving adaptive bulbous bow for inland waterway ships. Bulbous bows are used in sea-going vessels, but not for inland water vessels due to certain restrictions including water depth, and speed.
Other promising innovations
Finally, other results include adaptive windows for sailing yachts allow the user to adapt the transparency of the yacht’s windows to increase or reduce sunlight, and an adaptive rudder-propeller can improve the manoeuvrability of a vessel. The rudder-propeller will allow the vessel to operate at design pitch when manoeuvring in port or locked at a 90 degree pitch in vertical plane in a seagoing condition.
The ADAM4EVE project has clearly shown the way on how the European shipbuilding industry can adopt new designs and technology that will enable its ships to truly become more competitive, cost-effective, adaptable, greener and safer.
For further information please see:
ADAM4EVE final project results