Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Swells Neutralised During Offshore Maintenance


In future, the maintenance of, for example, wind turbines at sea, will be made easier and safer by a Delft invention, the ‘Ampelmann’, which compensated for swells at sea. Tests with scale models have shown that by mounting the working platform of maintenance ships on an Ampelmann, the platform will remain still and work can take place more efficiently. On Friday 18 February at TU Delft, the invention will be demonstrated to representatives of the Ministry of Economic Affairs, the director of Shell Nederland, the chairman of the TU Delft Executive Board and other governmental, scientific and industrial representatives.

The Ampelmann uses the same technology applied in flight simulators, a mechanical system with six large hydraulic cylinders. By accurately measuring the movement of the ship, and controlling the cylinders accordingly, the platform can be held in a fixed position relative to the object being worked on. This also makes it possible to safely board the structure with a simple bridge. This makes such off-shore structures far more accessible for maintenance crews. Currently, it is impossible to work on off-shore wind turbines 20 percent of the time, due to swells at sea. Using the Ampelmann, this could be reduced to around seven percent. Improving maintenance can increase production and efficiency.

At the European Wind Energy Conference in 2004, PhD student Jan van der Tempel won first prize for this idea in a field of 300 international entrants. "In Europe, about fifty wind parks have been planned, each with 30 to 300 turbines. Moreover, world wide there are seven thousand offshore production units that could benefit from this technology. There is therefore a great interest in the concept." Van der Tempel will soon start his own company, which will develop a prototype of the system in 2006. The patent remains in the hands of TU Delft.

Maarten van der Sanden | alfa
Further information:

More articles from Innovative Products:

nachricht New Video Camera Released Featuring Ultra-High-Speed CMOS Image Sensor Developed At Tohoku University
11.08.2015 | Tohoku University

nachricht Safe motorcycle helmets – made of carrot fibers?
06.08.2015 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

All articles from Innovative Products >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Climate study finds evidence of global shift in the 1980s

Planet Earth experienced a global climate shift in the late 1980s on an unprecedented scale, fuelled by anthropogenic warming and a volcanic eruption, according to new research published this week.

Scientists say that a major step change, or ‘regime shift’, in the Earth’s biophysical systems, from the upper atmosphere to the depths of the ocean and from...

Im Focus: Innovative Photovoltaics – from the Lab to the Façade

Fraunhofer ISE Demonstrates New Cell and Module Technologies on its Outer Building Façade

The Fraunhofer Institute for Solar Energy Systems ISE has installed 70 photovoltaic modules on the outer façade of one of its lab buildings. The modules were...

Im Focus: Lactate for Brain Energy

Nerve cells cover their high energy demand with glucose and lactate. Scientists of the University of Zurich now provide new support for this. They show for the first time in the intact mouse brain evidence for an exchange of lactate between different brain cells. With this study they were able to confirm a 20-year old hypothesis.

In comparison to other organs, the human brain has the highest energy requirements. The supply of energy for nerve cells and the particular role of lactic acid...

Im Focus: Laser process simulation available as app for first time

In laser material processing, the simulation of processes has made great strides over the past few years. Today, the software can predict relatively well what will happen on the workpiece. Unfortunately, it is also highly complex and requires a lot of computing time. Thanks to clever simplification, experts from Fraunhofer ILT are now able to offer the first-ever simulation software that calculates processes in real time and also runs on tablet computers and smartphones. The fast software enables users to do without expensive experiments and to find optimum process parameters even more effectively.

Before now, the reliable simulation of laser processes was a job for experts. Armed with sophisticated software packages and after many hours on computer...

Im Focus: Quantum Simulation: A Better Understanding of Magnetism

Heidelberg physicists use ultracold atoms to imitate the behaviour of electrons in a solid

Researchers at Heidelberg University have devised a new way to study the phenomenon of magnetism. Using ultracold atoms at near absolute zero, they prepared a...

All Focus news of the innovation-report >>>



Event News

Fraunhofer’s Urban Futures Conference: 2 days in the city of the future

25.11.2015 | Event News

Gluten oder nicht Gluten? Überempfindlichkeit auf Weizen kann unterschiedliche Ursachen haben

17.11.2015 | Event News

Art Collection Deutsche Börse zeigt Ausstellung „Traces of Disorder“

21.10.2015 | Event News

Latest News

Siemens to supply 126 megawatts to onshore wind power plants in Scotland

27.11.2015 | Press release

Two decades of training students and experts in tracking infectious disease

27.11.2015 | Life Sciences

Coming to a monitor near you: A defect-free, molecule-thick film

27.11.2015 | Materials Sciences

More VideoLinks >>>