6 HESS on why it returns to MARIN to find answers Joel Witz, Global Engineering Advisor at Hess Corporation, has been a regular visitor to

MARIN for three decades. Report asks how MARIN’s testing facilities have assisted this leading energy firm over the years.

9 Tension Leg Platform design, testing and analysis Hess’ Stampede TLP is tested in the Offshore Basin in waves, wind and current.

11 WiFi JIP makes it possible to take the next step in

foundation design The aim of the Wave impacts on Fixed turbines (WiFi) JIP is to better understand the influence of steep and breaking waves on the foundation and secondary structures of offshore fixed wind turbines.

12 Influence of LNG sloshing in partially filled tanks on

offloading operations Petronas commissions MARIN to perform side-by-side model tests to assess the influence of LNG sloshing in partially filled tanks on an LNGC’s motions.

14 Sharing knowledge, experience and costs

through joint R&D A JIP update.

16 A focus on waves Several research challenges now require advanced wave modelling techniques.

For special applications in-house wave generation software has been developed.

18 Artificial ice research provides fresh insight Experiments with artificial ice in model test campaigns give the industry better insight

into working in inhospitable environments.

20 Offshore tug simulations in extreme environments MARIN’s tug simulators were used to investigate equipment requirements and limitations

of tugs working in extreme conditions.

21 Motion based simulator for Dutch Navy – “FS3” A two-year project is underway which will lead to the development of a

Fast Small Ship Simulator.

22 Passage to the High North – when spray matters MARIN investigates how icing impacts operations in the High North.

Dear Reader,

‘Life at the extreme’ is the name of the Volvo Ocean Race app that I check when I have a free moment: What is the weather? What are the tactics? Who’s leading the pack? But most of all I like the videos: yachts cutting through high waves at incredible speeds, crews battling with the equipment.

I was thinking about this in relation to the ‘Extreme Environments’ theme of this edition. It is a topic close to my heart. My very first project at MARIN was an investigation into green water on an S-Frigate of the Royal Netherlands Navy.

And since then I have always stayed close to extremes - extreme waves, wave impact loads, sloshing...

Like extreme sports, extreme events are very exciting. Extreme events are adrenaline for both the Engineer and Scientist. They are much more interesting than ‘boring issues’ like fatigue. For me at least.

But there is a danger here. In ship and offshore research there is a tendency to focus on the extreme extremes. They have the ‘wow’ factor and grab your attention. But let’s be careful. Extreme events are interesting and exciting no doubt, but in the end our goal should be to decide whether something is safe. This requires insight into extreme events but also knowledge about complex statistics and the wisdom to judge the relevance of extreme events and how they impact the safety of the de- sign. Less extreme effects can be more important in the end.

Through our experience, we know we have to take some distance so we can judge what is really important for the safety of the ship and crew. To quote Bouwe Bekking, the Dutch Skipper of Team Brunel from the Volvo Ocean Race: “It’s all about keeping a cool head and not doing any strange things!”

Bas Buchner President



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