Trans RINA, Vol 153, Part A1, Intl J Maritime Eng, Jan-Mar 2011
Figure 7: Visual comparison of three ship configurations of an OPV modular payload arrangement [27] 4.4 JOINT SUPPORT SHIP
This design work was undertaken by the UCL DRC, as part of a bid team responding to the Canadian National Defence Department’s requirement for feasibility studies into a “Joint Support Ship” programme for a vessel combining logistics support, to the fleet at sea, with the capability to provide sea lift deployment of vehicles, to support expeditionary or humanitarian tasks. The UCL DRC task consisted of designing a range of possible design options, to investigate the impact of the many JSS capabilities on the concept.
Each study
configuration of this innovative was designed
using the
PARAMARINE-SURFCON system. Figure 8 shows the profiles of, firstly, four options, then two refined studies, followed by one (final) design, the latter being worked up in some detail with regard to the performance characteristics [28]. The issue to note is that, within essentially one ship form, the first iteration produced four distinctly different internal layout arrangements, able to be arranged using the DBB capability of the SURFCON CAD module. This again exemplifies the virtue of the architecturally driven DBB approach, such that the architecture was seen to drive the design evolution and hence the styles of the options could be compared. Thus it was possible to advise the bid team that the final configuration they presented had emerged from a full
consideration of possible major layout variants, an aspect not usually able to be explored until a sizing and hullform had been broadly fixed. Without
such an
exploration any dialogue on the emergent requirements would have been limited to one basic configuration, potentially closing
off variant solutions and their potential insights into the derivation of the requirements.
4.5 EARLY STAGE TECHNOLOGY IMPACT STUDIES
The previous four studies were undertaken in support of wider ship concept investigations to inform the dialogue in Requirement Elucidation, however another element in the early use of ship design capability is to look at the whole ship impact of actual or potential technological advances. Two such DRC impact studies were, firstly, that of an all-electric approach to combatant design [29] and, secondly, of prospective integrated electric weapons [30]. The first was undertaken on a typical Air Defence Destroyer design concept and consisted of identifying the whole ship impact of progressively more “all-electric” installations. Thus six separate designs were produced, one of which is shown in Figure 9, and they focused on the machinery spaces, within an overall balanced whole ship design.
©2011: The Royal Institution of Naval Architects
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