On the Pre-Lay trench tool design

The significant growth in offshore wind activities in boulder clay areas requires suitable cable protection solutions. It is desirable to create a trench prior installation of the cable in order to guarantee the target depth of burial. Modern equipment of available on the market can be refined in order to create a reduced footprint, both...

Clamshell Dredge bucket improvement for Clay Production

Especially for the dredging industry in the United States of America and the leading dredging company Great Lakes Dredge & Dock Company the clamshell dredge is a commonly used dredge tool. The aim of this study was production [m3/s] optimization of the clamshell bucket for stiffer clays. Different aspects of clamshell bucket geometry to clay...

Experimental study on the development of abrasion at offshore concrete structures in ice conditions

Concrete structures in marine environments subject to sea ice interaction are at risk of erosion and damage. Industry is interested in characterizing the ice abrasion phenomenon so that abrasion risk can be managed. The experiments conducted in this work have an exploratory character in order to identify the abrasion phenomenon and qualitatively...

Heat induced attachment and detachment of delicate tissues: Towards a new micro tissue gripper

Indirect Heat Induced Attachment and Detachment (HIAD) is a promising concept for gripping delicate tissues in ophthalmic surgery. However, the optimal settings of attaching to and detaching from delicate tissues are unknown. This study presents the effects of the instrument heating properties and initial contact force on the adhesion force,...