Trans RINA, Vol 157, Part C1, Intl J Marine Design, Jan –Dec 2015 3. DESIGN CONCEPT


The aim of this concept was to design a 130m OSV which has the capabilities of


comfortably


accommodating up to 50 wind farm technicians, vessel crew and 4 WFSVs. The objective was to engage in Design-Driven Innovation to create a new market sector of vessel. The idea being to develop an OSV platform with the technical innovation of a launch recovery system that could be applied to a general OSV so that the vessel could be adaptable between offshore wind and Oil & Gas to provide less investment risk due to adaptability.


The innovation in design meaning was to engage the user in the emotional design of high end luxurious interior design experiences informed by the principles of Environmental Psychology of the work space. The key objective of which is to create an optimised working environment supporting high motivated individuals in a low stress working and living environment and managing the relationship between the nature


of these two


distinctive functional spaces on the vessel. Having a stress free living environment will help increase team morale and productivity. It will also be beneficial for the wind farm industry as it will help retain work force, who are expensive to train and difficult to replace.


This was achieved through an engagement in Marine Design as delineated by McCartan et al [12]. This involved a multidisciplinary design team including: marine designers;


interior designers; superyacht


designers; automotive designers; maritime human factor experts; naval architects. The objective of Marine Design is to place the user at the centre of the design process. To this end a detailed analysis of the O& M activities and the development of a user scenario based on the personas of land based technicians who would have limited offshore experience as proposed by McCartan et al [13]. This was achieved through an application of superyacht and


combined Environmental


automotive design exterior with application psychology


of


design language the principles of


to enhance the user


experience of the interior. The focus on achieving wellbeing through the sensory perception of a luxurious interior space and effective worker interaction was fundamentally a compensation for the seakeeping of the OSV platform compared to a SWATH platform. The rationale being that the cost of an OSV being in the region of 50% that of a SWATH, the additional interior design costs would be marginal by comparison. This proposal builds upon the hypothesis of Keeling et al [14], that traditional ideas of comfort may not be necessary if alternative aspects of wellbeing can be achieved.


3.1 VESSEL SPECIFICATION AND OPERATION


The WFSV mothership or SOV (Service Offshore Vessel) will be designed to operate at Dogger Bank wind farm in the North Sea. The purpose of the vessel will be


to act as a safe haven for WFSV operating at the far shore wind farms. It will operate on a 3 weeks on-3 weeks off basis and provide accommodation and interior design affordances through the application of Environmental Psychology including integrated IT to facilitate a TPS approach to O&M, for a team of 70 technicians and project managers, who will not have had significant offshore experience.


The vessel to


be


designed to Lloyd's Register SPS (Special Purpose Ships) regulations, which due to the number of special persons involved requires an implementation of the 13-36 PYC regulations for fire safety and means of escape. The vessel must be able to store, service and launch 3-4 WFSV in 2.5m Hs, as well as 3-4 Cabin RIBs in Hs 1.5m. These CTVs will be chartered to facilitated an optimised O&M strategy based on weather window and predicted maintenance scheduling. To facilitate this O&M operation the following crew and special persons will be required:


 4x Bridge crew: Captain; 1st mate; 2nd mate; 3rd mate


 6 x Engineers = 3 engineers + 3 CTV service technicians


 5 x deck crew  6 x hotel staff  2 x chefs  8 x WFSV crew  2 x IT technician  70 x wind farm technicians for multi-vessel deployment strategy


This total of 103 crew and special persons will require individual


3.2 EXTERIOR FORM DEVELOPMENT


The stylised exterior form has a structural glass roof feature, which acts a collector panel for a light tunnel system, which distributes natural light within the areas of the ship devoid of natural views. Inspired by sculptural and superyacht forms the exterior form was developed around the visual metaphor of a hand clasping a pebble. The hull is perceived as a visual form of strength that wraps itself around the pebble


form of the


accommodation module. The flowing sculptural form of the exterior, shown in Figure 3, seamlessly integrates the bridge level with the rest of the hull.


The exterior design process began in side profile, were the dynamic stance of the visual form was developed, the visual mass of the exterior was moved forward to help create the dynamic stance make the vessel look as if it was moving when stationary. Refined through the use of line analysis to resolve relationships between lines and surfaces. The use of continuous horizontal windows in the fore section of the pebble connect it to the rear section which has a very different open deck form.


C-86 © 2015: The Royal Institution of Naval Architects rooms, except for 4 of the hotel staff.


Resulting in a requirement for 74 rooms including two cabins for supernumerary crew.


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