Ship with tail hydrofoil

A technology for hydrofoils and ships, which is applied in the direction of hulls, ship construction, ships, etc., can solve the problems of large ship navigation resistance, affecting ship navigation, and small boat tipping, so as to achieve good sailing attitude, improve longitudinal motion stability, reduce The effect of sailing resistance

Inactive Publication Date: 2005-07-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the other hand, with the increase of ship speed and the wide application of high-speed ships, the following defects have been exposed: 1. Due to the large navigation sinkage (or stern sinkage) of the ship's stern, the ship's navigation resistance is relatively large , this defect is particularly prominent in shallow water channels; 2. When high-speed ships are sailing, the waves are relatively large, especially the tail waves, which affect the navigation of other passing ships and easily cause capsizing accidents for small boats; scour, and often lead to intervention by waterway management

Method used

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  • Ship with tail hydrofoil
  • Ship with tail hydrofoil
  • Ship with tail hydrofoil

Examples

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Embodiment Construction

[0023] As shown in Fig. 1, 2, the present invention has the ship embodiment 1 of tail rear hydrofoil, and it is catamaran, and it comprises hull 1, is provided with hydrofoil 2 under the hull waterline 4 behind hull 1 tail, and hydrofoil 2 is an airfoil type, and the hydrofoil 2 is connected with the hull 1 through a connecting mechanism 3 . The hydrofoil 2 is arranged between the water level of the hull waterline 4 and 1.5 times the design draft of the hull below the water level.

[0024] Such as image 3 Shown, the present invention has the ship embodiment 2 of hydrofoil after the tail, and it is monohull, and its side view is the same as Fig. 1, and hydrofoil 2 is provided under the waterline 4 place of hull 1 tail behind its hull.

[0025] Below by comparative test, the technical effect of ship of the present invention is described in detail:

[0026] The test ship type is a catamaran, and the main dimensions and coefficients of the designed and selected ship type are as...

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Abstract

The ship with tail hydrofoil includes hull, and aerofoil-type hydrofoil under the tail waterline and connected via connecting mechanism to the hull. The present invention has the operation principle that while ship navigates, the hydrofoil produces lift force to raise the stern and to regulate the navigation attitude of the ship so as to reduce navigation resistance and save energy. The present invention has the following advantages: good navigation attitude and less navigation resistance; raised longitudinal ship stability; being favorable navigation in shallow water; and small made wave and tail wave.

Description

technical field [0001] The invention relates to ships, in particular ships with hydrofoils. Background technique [0002] In the field of ship engineering, the technology of adding hydrofoils to the hull is widely used in various countries. At present, for ships with hydrofoils, the hydrofoils on them are all set on the side or bottom of the ship, and their functions can be divided into two types. , one is to rely on the lift of the hydrofoil in the fluid to support part of the weight of the hull, so that the overall hull is raised during navigation, so as to change the draft of the ship and reduce the resistance of the ship when sailing; the other is to rely on the hydrofoil in the fluid The wave-making in the center and the wave-making of the ship itself form a favorable interference to reduce the wave and the navigation resistance of the ship. [0003] On the other hand, with the increase of ship speed and the wide application of high-speed ships, the following defects h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/24
Inventor 张大有
Owner WUHAN UNIV OF TECH
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