Novel intelligent resistance-reducing bilge keel

A bilge keel and intelligent technology, which is applied in the field of new intelligent drag-reducing bilge keel, can solve the problems of increased resistance, inconsistent hull surface streamlines, complicated navigation and working conditions, etc., and achieve the effect of reducing resistance.

Inactive Publication Date: 2021-01-01
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

However, some types of ships have relatively short parallel mid-body (such as marine engineering auxiliary ships), and the navigation and working conditions are complex, and there are working conditions of various speeds and drafts.
The bilge keel arranged for one condition will often not be consistent with the streamline of the hull surface in other conditions, resulting in increased resistance

Method used

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  • Novel intelligent resistance-reducing bilge keel
  • Novel intelligent resistance-reducing bilge keel

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Embodiment

[0024] Such as figure 1 As shown, this application proposes a new type of intelligent drag-reducing bilge keel, which transforms a part of the conventional fixed bilge keel into multiple discrete leaf-shaped bilge keels that can intelligently adjust the angle, which can reduce the The increased resistance caused by the inconsistency between the direction of the bilge keel and the streamline. The novel intelligent drag-reducing bilge keel includes a conventional bilge keel part 2 , a discrete bilge keel part and an intelligent control module 3 . The conventional bilge keel part 2 has no difference in design from the conventional bilge keel, but it is only arranged in the parallel mid-body part, or the part where CFD calculation or model experiment proves that there is no difference in streamline under various working conditions of the bilge. The discrete bilge keel part is set at the part where the CFD calculation or model experiment proves that the streamlines are different u...

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Abstract

The invention relates to a novel intelligent resistance reduction bilge keel which comprises a conventional bilge keel part, a discrete bilge keel part and an intelligent control module. The discretebilge keel part is arranged at the part with different flow lines under various working conditions of a bilge and comprises a plurality of leaf-shaped rotatable bilge keels, and the leaf-shaped rotatable bilge keels are all connected with the intelligent control module. Compared with the prior art, the part, inconsistent with the streamline, of a conventional bilge keel due to various navigationalspeeds, various drafts and other working conditions is removed and replaced with the multiple discrete leaf-shaped bilge keel structures capable of intelligently adjusting the angle, and the discreteleaf-shaped bilge keel structures intelligently adjust the angle along the streamline during sailing; and therefore, the resistance is reduced, and the device has important use value for ships with relatively short parallel midbodies and complex and variable navigation working conditions.

Description

technical field [0001] The invention relates to a bilge keel, in particular to a novel intelligent drag-reducing bilge keel. Background technique [0002] The bilge keel is an appendage structure arranged in the bilge of the hull to provide damping when the ship rolls to reduce the degree of roll. The design of the conventional fixed bilge keel needs to be arranged according to the streamline along the hull surface under a certain sailing condition. However, some types of ships have relatively short parallel hulls (such as marine engineering auxiliary ships), and their navigation and working conditions are complex, and there are working conditions of various speeds and drafts. The bilge keel arranged according to a certain working condition will often be inconsistent with the streamline of the hull surface in other working conditions, resulting in increased resistance. Contents of the invention [0003] The object of the present invention is to provide a novel intelligen...

Claims

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Application Information

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IPC IPC(8): B63B39/06B63B1/40
CPCB63B1/40B63B39/06B63B2039/067Y02T70/10
Inventor 张新曙高天池支鹏飞
Owner SHANGHAI JIAO TONG UNIV
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