Dynamic Analysis of the Ampelmann G25 Gangway.

The Ampelmann system is an active motion compensation system that can compensate the vessel motions in six degrees of freedom. The Ampelmann, together with the attached gangway, makes it possible for people to transfer between a vessel and offshore structures safely. The Ampelmann system has been designed in the early stages based on a set of...

Dynamic behaviour of tunnel elements during the immersion process: A study to the influence of swell waves and wind waves on the immersion system

Immersion of tunnels is an often used technique in rivers and canals. The transport of tunnel elements can be done under offshore conditions, but immersing the elements under these conditions is not common practise. The tunnel elements of the Busan-Geoje Fixed Link in South Korea were immersed in such a situation. During this process, several...