Hull Surge Diversion Grooves for High-Speed Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing water surface transport means face limitations in speed due to high water resistance, poor maneuverability, and instability, especially at high speeds and in adverse weather conditions, with most vessels experiencing reduced stability and increased risk of overturning when trying to navigate quickly or turn effectively.
Innovation Solution
The design incorporates surge diversion grooves and wave suppression baffles with specific arc-shaped transverse and longitudinal sections to minimize water resistance, enhance hydrodynamic forces, and improve stability, allowing for faster speeds and tighter turns without stability loss, by focusing hydrodynamic centrifugal force on the stern during turns and utilizing hydrodynamic lift for longitudinal and lateral stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If general displacement vessels are used to ensure stability and meet tonnage demands, then stability is improved, but water resistance increases and speed decreases
Solution Approach 1:
The hull is divided into multiple sections with different functional characteristics: the bow section is designed for cutting waves and providing lift, while the stern section is optimized for propulsion and stability. This segmentation allows each part to perform its specific function optimally, resolving the contradiction between stability and speed.
Solution Approach 2:
The patent introduces a vertical dimension to the hull design by incorporating a V-type transverse section that extends downward, creating a three-dimensional hull form. This dimensional change allows the vessel to achieve both shallow draft for speed and deep structural characteristics for stability, eliminating the trade-off between these two parameters.
2Speed
If hydrofoil crafts are used to reduce water resistance and improve speed, then speed is improved, but maneuverability and seaworthiness deteriorate
Solution Approach 1:
The hull design incorporates dynamic characteristics through its V-type transverse section and surge diversion grooves that adapt to water flow conditions. The hull can dynamically adjust its interaction with water during maneuvers, maintaining both high speed and good maneuverability through its flexible hydrodynamic response.
Solution Approach 2:
The patent introduces surge diversion grooves as intermediary structures between the hull and water flow. These grooves mediate the interaction by directing water flow smoothly, reducing resistance during high-speed travel while maintaining control and maneuverability through controlled water displacement.
3Speed
If hovercrafts are used to eliminate water resistance and improve speed, then speed is improved, but energy consumption increases and anti-wave performance deteriorates
Solution Approach 1:
The patent uses hydraulic principles through its V-type hull design that exploits water pressure and flow dynamics to generate lift and reduce resistance. Instead of using air cushions as in hovercrafts, the design uses water pressure distribution across the V-type section to achieve similar speed benefits with much lower energy consumption.
4Speed
If general planing crafts are used to achieve shallow draft and improve speed, then speed is improved, but wetted surface increases and frictional resistance increases
Solution Approach 1:
The patent employs curved surfaces throughout the hull design, including the V-type transverse section and the surge diversion grooves with arc-shaped cross-sections. These curved geometries reduce wetted surface area and minimize frictional resistance by creating smoother water flow patterns, allowing high speed with lower energy loss.
5Speed
If vessels increase speed beyond 50 knots to improve performance, then speed is improved, but stability worsens and overturning risk increases
Solution Approach 1:
The V-type transverse section of the hull acts as a counterweight mechanism, with the downward-extending portions providing stabilizing moments that counteract the destabilizing effects of high-speed motion. This geometric counterweighting allows the vessel to maintain stability even at speeds exceeding 50 knots.
Solution Approach 2:
The hull design integrates multiple functional characteristics into a composite structure combining elements of displacement vessels (for stability) and planing crafts (for speed). This composite approach allows the vessel to achieve high speed while maintaining the stability characteristics of traditional displacement vessels.
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
This configuration significantly enhances speed, stability, and maneuverability, enabling vessels to maintain high speeds and navigate through waves and turns with improved safety and efficiency, breaking the speed barrier of 50 knots without risking overturning, and significantly improving seakeeping performance.
Implementation Method 1
make full use of hydrodynamic buoyancy stirred up by its own movement to load a self-weight and a load
Implementation Method 2
focus hydrodynamic centrifugal force on the stern when making a turn, thereby forming a hydrodynamic gyration-aided moment
Implementation Method 3
utilizing hydrodynamic lift to improve longitudinal and lateral stability
Implementation Method 4
utilizing useless energy dissipated by water wave movement to be converted into hydrodynamic propulsive force to accomplish useful work
Data Source
AI summary
A water surface transport means, comprising a bottom (1), boards (2), a deck (3), surge diversion grooves (4) and wave suppression diversion baffles (5), the surge diversion groove (4) being provided in a space between a bottom surface vertically recessed into the hull bottom (1) and the deck (3) and extending from the bow to the stern, with an arc-shaped transverse section and a top line of longitudinal section being lower in the front and higher in the rear; a top transverse section of the wave suppression diversion baffle (5) being arc-shaped and a top line of longitudinal section being lower in the front and higher in the rear. The water surface transport means can be configured as mono-hull, catamaran and trimaran.