Now in Offshore Mechanics and Arctic Engineering
Out of the Vortex
Vortex-induced vibrations (VIVs) have been known for at least five hundred years. For most of that time, VIVs were known as sources of destruction of aquatic structures, for example the apparent self-destruction of the Tacoma Narrows Bridge in 1940. This article describes a technique for harnessing usable electrical energy from a VIV-based electrical generator, VIVACE, positioned in waterways.
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Knowledgebase
The challenges of building in ice are great and varied. The material can find the natural frequency of any structure built in it, and it's a constant battle to keep it from blocking access. Walter Kuehnlein, of consulting engineering firm Sea2Ice, can help solve some of these problems. But his most important piece of advice is that companies that want to build in ice should be rethinking the very idea of what it means to engineer.
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Knowledgebase
Much has been learned about the mechanics of ice, including what happens at the microstructure level when icebergs collide with structures at sea. How ice fails under impact has been the subject of much research. Years of world-wide collaboration has resulted in a new ISO standard for designing offshore structures in Arctic environments.
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Group
The mission of the OOAE Division is to promote technological progress and international cooperation in all areas of ocean, offshore and arctic engineering, and in the recovery of resources in hazardous, offshore and arctic environments such that safety, environmental and economic successes are achieved.
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