Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Novel low-resistance bilge keel structure of maritime work auxiliary ship

A bilge keel and auxiliary ship technology is applied in the field of low-resistance bilge keel structures of new marine auxiliary ships, which can solve the problems of increased resistance, complex navigation and working conditions, and inconsistent hull surface streamlines.

Inactive Publication Date: 2021-01-01
SHANGHAI JIAO TONG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the parallel center body of the marine engineering auxiliary ship is relatively short, and the navigation and working conditions are complicated, 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel low-resistance bilge keel structure of maritime work auxiliary ship
  • Novel low-resistance bilge keel structure of maritime work auxiliary ship

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Below according to the attached figure 1 with figure 2 , give a preferred embodiment of the present invention, and give a detailed description, so that the functions and characteristics of the present invention can be better understood.

[0017] see figure 1 , a new low-resistance bilge keel structure of an auxiliary marine vessel according to an embodiment of the present invention includes a conventional bilge keel 1 fixed to the bilge portion of a hull 3 and a plurality of discrete leaf-shaped rotatable bilge keels 2 .

[0018] In this embodiment, the conventional bilge keel 1 is arranged in the middle section of the bilge of the hull 3 or the part where the streamlines of the bilge have no difference under various working conditions as proved by CFD calculation or model experiment.

[0019] The discrete leaf-shaped rotatable bilge keel 2 is arranged at the part where the streamlines of the bilge are different under various working conditions as proved by CFD calcu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Rotatable angleaaaaaaaaaa
Login to View More

Abstract

The invention provides a novel low-resistance bilge keel structure of a maritime work auxiliary ship. The structure comprises a conventional bilge keel fixed to a bilge of a ship body and a pluralityof discrete leaf-shaped rotatable bilge keels. According to the novel low-resistance bilge keel structure of the maritime work auxiliary ship, the part, inconsistent with the surface streamline of theship body due to the situation, of a conventional bilge keel is removed and replaced with a plurality of discrete leaf-shaped bilge keel structures capable of rotating within a small angle range, andthe angles of the discrete leaf-shaped bilge keel structures are automatically adjusted along a streamline during sailing, so that the resistance is reduced.

Description

technical field [0001] The invention relates to the field of bilge keels, in particular to a novel low-resistance bilge keel structure for marine engineering auxiliary ships. Background technique [0002] 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. On the other hand, the parallel mid-hull of the marine engineering auxiliary ship is relatively short, and the 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] Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a new type of low-resistance bilge keel structure for marine engineering auxiliary...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B63B39/06
CPCB63B39/06B63B2039/067
Inventor 张新曙高天池支鹏飞
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com