Pleasure Craft Deck Layout Without Transverse Bulkheads
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Solution Overview
Problem
Existing luxury pleasure crafts face constraints in space arrangement and aesthetics due to the presence of transverse bulkheads below the main deck, which are necessary for safety but undesirable in passenger areas.
Innovation Solution
The introduction of an imaginary or virtual freeboard deck below the main deck, defined by lateral cavities along the hull sides, allows eliminating transverse bulkheads from decks above, maintaining safety compliance by guiding floodwater to lower compartments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transverse bulkheads are provided below the main deck to ensure buoyancy division and safety, then safety and stability are improved, but space flexibility and aesthetics are worsened
Solution Approach 1:
The bulkhead structure is segmented into two parts: a lower bulkhead extending from the lowermost deck to a height below the main deck, and an upper bulkhead extending from the main deck downwards. The space between these bulkheads forms a void that allows flexible space arrangement above while maintaining watertight separation below for safety compliance.
Solution Approach 2:
The invention introduces a vertical dimension solution by creating a void space between the lower and upper bulkheads. This vertical separation allows the deck above to be used as a single continuous space without transverse bulkheads, while the vertical bulkhead structure below maintains the required buoyancy division.
2Reliability
If transverse bulkheads are provided below the main deck to ensure buoyancy division, then safety is improved, but manufacturing complexity and weight are worsened
Solution Approach 1:
The invention extracts the bulkhead structure from the deck space by positioning it below the main deck. The lower bulkhead is placed in the lowermost deck and the upper bulkhead in the space below the main deck, creating a void between them. This separation removes the bulkheads from the passenger deck area, simplifying manufacturing and reducing weight while maintaining safety.
3Reliability
If transverse bulkheads are provided below the main deck to ensure buoyancy division, then safety is improved, but aesthetic appearance is worsened
Solution Approach 1:
By segmenting the bulkhead into lower and upper parts with a void between them, the invention allows the upper deck space to appear open and aesthetically pleasing without visible bulkheads, while the lower bulkhead structure below maintains the required safety division.
Solution Approach 2:
The bulkhead system is relocated to a lower vertical dimension, below the main deck. This dimensional relocation hides the bulkhead structure from the main passenger areas, improving aesthetic appearance while the vertical positioning ensures safety compliance is maintained in the critical lower regions.
Data Source
AI summary
A pleasure craft is provided such as a luxury pleasure craft. The craft eliminates the need for transverse bulkheads in one or more decks inside the hull of the craft, thus improving the aesthetics and usability thereof. The hull of the pleasure craft defines an imaginary or virtual freeboard deck located below the main deck of the craft. A cavity is arranged on one or more decks on both sides of the hull separate from the remaining space of the corresponding deck and delimited on its outer side by the corresponding side wall. The imaginary or virtual freeboard deck is therefore at a height equal to the extension in the vertical direction of the cavities from the floor of the corresponding deck.