Hinged Watercraft Steering with Hydrofoil Lift
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Solution Overview
Problem
Existing recreational watercrafts with a mid section and side sections suffer from poor maneuverability, large turning radius, unwieldy construction, and high resistance at high speeds, requiring excessive energy and powerful engines.
Innovation Solution
A watercraft design featuring a mid section with a seat and side sections connected by a hinged coupling, where the front part is primarily formed by the mid section, and the side sections form the rear part, allowing rotation around the hinged coupling for steering, and equipped with a foil profile to minimize water resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid construction with mid section and side sections is used, then the watercraft has limited draught and stable floating, but the manoeuvrability is poor and turning radius is large
Solution Approach 1:
The watercraft is divided into a front part and a rear part that can rotate relative to each other around a hinged coupling. This segmentation allows the front part to be steered independently, improving manoeuvrability while maintaining the stable floating provided by the side sections and mid section configuration.
Solution Approach 2:
The rigid connection between front and rear parts is replaced with a hinged coupling that allows dynamic rotation. This enables the watercraft to change its configuration during operation, allowing tight turning circles and improved manoeuvrability while preserving the stable floating characteristics when in straight alignment.
2Device complexity
If a conventional rigid profile is used, then the construction is simple, but the resistance at high speeds is high and energy consumption increases
Solution Approach 1:
The watercraft profile is made dynamic through the hinged coupling, allowing the front part to rotate and optimize its position relative to the water flow. This reduces resistance at high speeds by enabling the craft to cut through waves more efficiently, lowering energy consumption while maintaining relatively simple construction.
3Device complexity
If a conventional rigid profile is used, then the construction is simple, but the watercraft crashes into water surface repeatedly at high speeds
Solution Approach 1:
The hinged coupling enables the front part to dynamically adjust its position, allowing it to rotate and skim over wave crests rather than crashing down. This dynamic adjustment reduces the repeated impacts with water surface at high speeds while keeping the construction relatively simple.
4Speed
If powerful engines are used to overcome high resistance, then high speeds can be achieved, but the costs increase enormously
Solution Approach 1:
By making the watercraft profile dynamic through the hinged coupling, the front part can optimize its position to reduce water resistance. This allows the watercraft to achieve high speeds with less engine power, reducing costs while maintaining the ability to reach high velocities.
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
The design enhances maneuverability and reduces energy consumption, enabling higher speeds with less effort and lower energy input compared to traditional watercrafts.
Implementation Method 1
the foil profile is such that with a sufficiently fast forward movement of the watercraft, an upward force is exerted on the foil profile by the water so that the front part of the watercraft is at least partially, and preferably completely, pushed out of the water
Implementation Method 2
the hinged coupling forms part of the steering mechanism, such that as a result of the rotation of the front part with respect to the rear part of the watercraft around the hinged coupling, the sailing direction of the watercraft is changed
Data Source
AI summary
Watercraft that consists of a mid section with a seat and two side sections, and which has a steering mechanism, whereby the watercraft consists of a front part and a rear part that are coupled together by a hinged coupling, whereby the front part is formed by the mid section, and the side sections form part of the rear part, whereby the hinged coupling forms part of the steering mechanism, such that as a result of a rotation of the front part with respect to the rear part of the watercraft around the hinged coupling, the sailing direction of the watercraft is changed.