Inflatable drag-reducing high-speed skimming boat with wedge-shaped steps

Abstract

The invention provides an inflatable drag-reducing high-speed skimming boat with wedge-shaped steps. The boat is mainly characterized in that the bottom of the boat is provided with small wedge-shaped steps with different quantity; the periphery of the steps is provided with triangular shield strips preventing air from escaping; the wedge-shaped steps are provided with inflation pipes and are connected with an air compressor; and according to a database established based on the relation among comprehensive parameters of the wedge-shaped steps, power and boat resistance, the inflation of the wedge-shaped steps is controlled by utilizing a computer program so as to achieve the aims of inflating the wedge-shaped steps, reducing wet surface area, reducing resistance and raising boat speed under the same power. The inflatable drag-reducing high-speed skimming boat with the wedge-shaped steps has the following advantages of partially realizing the effect of resistance reduction of a stepped boat on the premise of not increasing overall design for the skimming boat; and applying computers to dynamically controlling the inflation of the wedge-shaped steps so as to improve the inflation effect of the wedge-shaped steps and reduce the power loss.

Description

technical field [0001] The invention is applied to the field of high-performance boats, specifically wedge-shaped broken-stage inflatable drag-reducing high-speed planing boats. Background technique [0002] The step-off planing boat is derived from the seaplane, and its purpose is to ensure the stability during take-off. The purpose of design breaks is to reduce viscous drag by reducing the wetted area of ​​the hull while maintaining high hydrodynamic lift. In order to achieve the purpose, two conditions must be met for the setting of the fault stage: the first is the condition of flow separation at the fault stage and the formation of ventilation after the fault stage; the second is the length of the ventilation area on the lower surface of the hull. Any one of the above conditions increases the difficulty of planing craft design. At the same time, the level setting of the planing boat divides the boat from one planing surface into multiple planing surfaces, which requir...

AI Technical Summary

Problems solved by technology

Any one of the above conditions increases the difficulty of planing craft design

At the same time, the level setting of planing boats divides the boat from one planing surface into multiple planing surfaces, which requires the ship to have good maneuverability, and the design difficulty is greatly increased

Therefore, although the broken class ship has the advantage of very good speed, the design workload of the broken class high-speed planing ship is far greater than that of the ordinary planing ship.

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