Solitaire is the world's largest dynamically positioned pipe laying vessel (DPPLV). Having reached a final stage of construction, it is scheduled to enter the market in spring '97. Only recently, the availability of powerful computers and large memory capacity, in combination with the development of potential flow diffraction analysis techniques, make it possible to analyse complex phenomena like ship motions in a sea environment. For the analysis of ship motions of the DPPLV and a pipe supplier use was made of the program DELMULTI of the TU Delft. Based on a linear potential theory, this 3D diffraction program computes the motion response amplitude operators. All potential effects like added mass, hydrodynamic damping and wave forces are taken into account. Hydrodynamic interaction of the ships in close proximity is taken into account. With this powerful tool at hand a number of calculations are performed to gain insight in the process of ship to ship pipe supply in a seaway. The report describes objects of interest in a qualitative and quantitative way. A number of limiting criteria with respect to the workability of ship to ship pipe supply are formulated.
Motion Behaviour of Pipe Suppliers Alongside DPPLV 'SOLITAIRE'
1997
116 pages
Report
Keine Angabe
Englisch
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