Lowerable Tender Platform for Water Craft Hull Integration
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Solution Overview
Problem
Existing lowerable platforms for water crafts cause water turbulence, disrupt balance, and add buoyancy when submerged, and lack efficient integration with the hull.
Innovation Solution
A lowerable segment integrated with the hull, featuring a watertight lower compartment and a partially fillable upper compartment, which maintains balance and buoyancy by positioning the partition plate between the first and second water lines, allowing tenders to be parked and secured without protruding beyond the hull.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lowerable platform is attached to the stern of the water craft, then the platform can be used for putting a tender in the water and parking it, but the platform causes water turbulence and disrupts the balance of the water craft when submerged
Solution Approach 1:
The stern is divided into a lower compartment and an upper compartment by a partition plate. The lower compartment can be filled with water to submerge the platform, while the upper compartment remains above water for tender parking. This segmentation allows the platform to be submerged without causing turbulence or balance disruption to the main hull.
Solution Approach 2:
The lowerable platform is nested within the stern structure, with the partition plate creating a nested lower compartment that can be independently filled with water. This nested configuration allows the platform to be submerged while maintaining the overall integrity and balance of the water craft.
2Strength
If buoyancy means are added to the lowerable platform to keep it above water, then the platform can support the tender weight, but the platform adds buoyancy when submerged which disrupts the balance of the water craft
Solution Approach 1:
The stern is segmented into lower and upper compartments, with the partition plate positioned between the first and second water lines. This allows the lower compartment to be filled with water for platform submersion while the upper compartment provides stable support for the tender, eliminating unwanted buoyancy effects on the main hull.
3Loss of energy
If the lowerable segment is made integral with the hull, then the integration provides less water turbulence and reduced drag, but the segment may disturb the balance of the water craft
Solution Approach 1:
The integral lowerable segment is segmented into lower and upper compartments by a partition plate arranged between the first and second water lines. This segmentation allows the segment to be submerged (reducing drag and turbulence) while the partition plate configuration maintains the balance of the water craft by preventing unwanted buoyancy effects.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces water turbulence, maintains balance and buoyancy, and enables efficient parking and securing of tenders without altering the craft's stability, with optional use as a swimming pool.
Implementation Method 1
the upper compartment is configured to be at least partially filled with water when the lowerable segment is lowered from the first position, and wherein the upper compartment is configured to be drained when the lowerable segment is raised to the first position
Data Source
Figure 1
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Figure 3
AI summary
Water craft comprising a hull (1), with an opening (4) and a lowerable segment (7) arranged in said opening. The lowerable segment (7) is coupled to the hull (1) via a lifting mechanism (8) for lowering or raising the lowerable segment (7) with respect to the hull (1) between - a first position in which an outer surface (9) of a bottom wall of the segment is substantially flush with the outer surface of a bottom (5) of the hull adjacent to the segment, and - a second position wherein the segment (7) is arranged below the water line (11) of the hull (1). The lowerable segment comprises a lower watertight compartment (13) and an upper compartment (14) that can at least partially be filled with water when the segment (7) is lowered, and can be drained when the segment is raised. When in the first position, a wall between the lower and upper compartment is arranged at a level at or near the water line (11).