Trans RINA, Vol 156, Part C1, Intl J Marine Design, Jan –Dec 2014
with the complete interior install completed. This not only gives access during the life of the vessel but also means that
electrical additions can be added or
removed during build, thus giving greater flexibility. The infrastructure question is covered in more detail in section 6
5 CREATING A DIGITAL PLATFORM FOR FIT OUT
Digital that technology for the purpose the costs of these of design and
manufacturing have developed at an exponential rate over the last decade as software has become more common and computer power increased. The net result is
technologies has fallen
dramatically and afforded access to smaller companies where it used to be only the largest organizations that could purchase and support the technology.
Further to this the inter connectivity and diagnostic capabilities have increased and deliver powerful tools to the designer to ensure that cost is reduced not only at a part level but in complex assemblies and Bills of materials. For example; hull forms can now be 3D printed for tank testing with fine detail through to interior layouts, ergonomics and human factors tested using virtual reality. Once the preserve or aerospace, automotive and Formula1 teams the cost of these systems are available to the smallest companies and can deliver impressive results.
5.1 AVAILABILITY AND BARRIERS OF SUITABLE DIGITAL FORMATS
One of the barriers that is particular to the marine industry is the compatibility of the software for different
design For production these functions. Most Naval Architects
design on custom packages such as Maxsurf due to their functionality and ability to interrogate features such as stability calculations.
designs are normally exported to packages such as auto cad for panel drawings or rhino for rendering. This being the case these models are difficult to use with Industry standard packages such as SolidWorks or Catia where fit out population can be achieved with any level of detail. However; many naval architects are starting to export
to solid works rendering a more
suitable digital platform for fit out, to date this tends to be the exception rather than the rule. [29 & 30]
A further barrier to achieving a useable digital platform is the release of three dimensional models from the Naval Architect to the Boat yard or Interior fit team. However this can be overcome by the introduction of suitable contractual Disclosure agreements.
undertakings such as Non- 5.2
TRAINED DESIGNERS AND TRANSFERRED SKILL SETS FROM OTHER INDUSTRIES.
Whilst Naval Architects are qualified in the design of vessels and the appropriate software , the skill sets required for design for manufacture , interior design ,fit out and human factors and the software are a completely separate subject and not available in most Naval Architect practices or Boat yard departments. With the
increasing demands needing to be
passenger comfort and safety this field of design is becoming more important with subjects such as Whole Body
Vibration, Ventilation circulation and noise determined and evaluated to meet
regulatory issues. As such the availability of these specialists are in short
supply within the marine
industry. Cross fertilization from other industries is always productive, yet with the harsh environment at sea, experience is lacking with forces, materials and longevity requirements. For example; as vessels are becoming faster and working in higher sea states products such as truck suspension seats are proving to break since they are designed to take vertical loads and not
design on
lateral loads from multiple directions as is
experienced at sea. This is a simple example but shows that transference from other industries does not always translate into the marine environment.
5.3 CREATING A DIGITAL PLATFORM 3D MODEL (STEP1)
A 3D CAD model is REQUIRED and can speed up the whole design process and reduce CAD design time further in the project, which will be reflected in the cost. Models in packages such as solid works allows individual features and parts on the vessel design to be edited in the assembly format which automatically do a revision change on the drawings and the Bill Of material maintaining full design change traceability and revision control. As explained, in order to achieve this level of flexibility and functionality models need to be processed from packages like Maxsurf.
Most customers will have 2D drawings most CAD software can accept most known formats. A 2D drawing will allow the designer to create a rough cut layout and estimate. Yet for the purposes of design for manufacture is limited in its scope [28]
A sketch is not uncommon especially for Re-Fit contracts where there are generally no drawings. The designer can work with this information but it will require an engineer to do a detailed survey before detail design can happen and the subsequent construction of a detailed 3D model.
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©2014: The Royal Institution of Naval Architects
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