CN-224211233-U - Bilge keel assembly applied to ship and ship

CN224211233UCN 224211233 UCN224211233 UCN 224211233UCN-224211233-U

Abstract

The application relates to a bilge keel assembly applied to a ship and the ship with the bilge keel assembly. The bilge keel assembly comprises a plurality of bilge keel monomers, the drain edges of two adjacent bilge keel monomers are mutually spaced along the extending direction of the bilge keel assembly to form a drain space, the bilge keel monomers are provided with a first depressurization space along the drain edges, and the first depressurization space is communicated with the drain space. At least a part of the bilge keel unit, which is close to the first depressurization space, is a first deformable area. According to the arrangement, the bilge keel monomer comprises a first depressurization space communicated with the drainage space, and at least a part of the bilge keel monomer, which is close to the first depressurization space, is a first deformable region. This allows the bilge keel assembly to be compatible with the overall area size and reliability of the connection of the bilge keel assembly to the hull.

Inventors

ZHOU CAIMIN
XU YONGQING
TIAN RUN
YUAN ZHIXING
NI JUN
LIU DING

Assignees

上海惠生海洋工程有限公司

Dates

Publication Date: 20260508
Application Date: 20250519

Claims (10)

1. A bilge keel assembly for a ship, the bilge keel assembly being assembled to an outer plate (200) of the ship extending in a length direction of the ship, comprising: The bilge keel units (100) are separated from each other along the extending direction of the bilge keel assembly, the drain edges (1) of two adjacent bilge keel units (100) are separated from each other to form a drain space (101), the bilge keel units (100) are provided with a first depressurization space (102) along the drain edges (1), and the first depressurization space (102) is communicated with the drain space (101); At least a part of the bilge keel unit (100) close to the first depressurization space (102) is a first deformable region (103).
2. Bilge keel assembly for ships according to claim 1, wherein said drain edge (1) comprises an adjoining concave edge section (11) and a parallel straight section (12), wherein said concave edge section (11) is arranged on the side of said parallel straight section (12) close to said outer plate (200).
3. The bilge keel assembly for a ship according to claim 2, wherein said concave edge section (11) comprises a diagonal section (111), a parametric curve section (112) and a circular arc curve section (113) connected in sequence, wherein said diagonal section (111) is arranged close to one side of said outer plate (200).
4. Bilge keel assembly for ships according to claim 2, wherein said drain edge (1) further comprises a first straight line segment (13), said first straight line segment (13) being connected between said outer plate (200) and said concave edge segment (11).
5. Bilge keel assembly for ships according to claim 2, wherein said drain edge (1) further comprises a second straight line segment (14), said second straight line segment (14) being connected between said recessed edge segment (11) and said parallel straight line segment (12), and said second straight line segment (14) being perpendicular to said parallel straight line segment (12).
6. Bilge keel assembly for ships according to claim 2, wherein said concave edge segments (11) fulfil a fairing condition.
7. Bilge keel assembly for ships according to any of the claims 1 to 5, wherein in said bilge keel assembly said bilge keel piece (100) at the bow end and/or at the stern end is provided with an anticline (2), said anticline (2) being the end of said bilge keel piece (100) remote from said first depressurization space (102) in the length direction of said bilge keel piece (100).
8. The bilge keel assembly for a ship according to claim 7, wherein the declivity edge (21) of said declivity portion (2) has a declivity indent section (22), said declivity indent section (22) being recessed inwardly towards said declivity portion (2) to define a second depressurization space (104), at least a portion of the area of said declivity portion (2) adjacent to said second depressurization space (104) being a second deformable area (105).
9. The bilge keel assembly for a ship according to any of the claims 1 to 5, wherein said bilge keel cell (100) comprises a first plate portion and a second plate portion being lap-connected, wherein said first depressurization space (102) is provided in said first plate portion.
10. A marine vessel, comprising: A hull body; The bilge keel assembly according to any of the claims 1 to 9, which is fitted to an outer plate (200) of said hull body.

Description

Bilge keel assembly applied to ship and ship Technical Field The application relates to the technical field of ships, in particular to a bilge keel assembly applied to a ship and the ship with the bilge keel assembly. Background Vessel roll is a side-to-side motion of a vessel about its longitudinal axis during navigation, which motion can present hazards such as to the vessel structure, vessel equipment, and to cargo and personnel. In ship design, consideration of the roll angle of the ship is particularly important, and it is necessary to reduce the roll angle of the ship as much as possible so as to avoid accidents caused by too large roll angle of the ship. In the related art, bilge keels are provided on an outer plate of a hull body of a ship to control a roll angle of the ship. When a ship rolls while sailing in a wave or when being disturbed by external forces (such as crosswinds, beam sea), the bilge keels move in the water, which changes the speed and pressure distribution of the surrounding water flow. According to Bernoulli's principle, the pressure decreases as the fluid velocity increases, and increases as the fluid velocity decreases. The presence of the bilge keels changes the velocity of the water flowing around them, thereby creating a pressure differential. The bilge keels are subject to viscous resistance of water when moving in the water. This viscous drag is opposite to the direction of motion of the vessel roll, and like a damper, can absorb the energy of the vessel roll. From the rigid body dynamics point of view, the bilge keels increase the moment of inertia of the ship during roll motions. Moment of inertia is a physical quantity that measures the resistance of an object to rotation. Based on the above, the problem of overlarge rolling angle of the ship can be solved by arranging the bilge keels on the ship. For the intermittent bilge keel assembly, the intermittent bilge keel assembly cannot achieve the problems of large total area and high reliability of connection with the hull. If the reliability of the connection between the bilge keel assembly and the hull is guaranteed, the total area of the bilge keel assembly is small, and the bilge keel assembly cannot effectively restrain the rolling movement of the ship. If the total area of the bilge keel assembly is large, the connection reliability of the bilge keel monomer in the bilge keel assembly and the outer plate of the ship is low, so that the bilge keel monomer is separated from the outer plate of the ship, and the bilge keel assembly is invalid in application in the ship. Disclosure of utility model Based on this, it is necessary to provide a bilge keel assembly for a ship in view of the problems of the bilge keel assembly in the application to the ship. A bilge keel assembly for a ship, the bilge keel assembly comprising: The bilge keel units are provided with first depressurization spaces along the drainage edges, and the first depressurization spaces are communicated with the drainage spaces; At least a part of the bilge keel unit, which is close to the first depressurization space, is a first deformable area. In one embodiment, the leakage edge comprises adjacent concave edge segments and parallel straight segments, wherein the concave edge segments are disposed on a side of the parallel straight segments adjacent to the outer panel. In one embodiment, the concave edge section comprises an inclined straight line section, a parametric curve section and an arc curve section which are connected in sequence, wherein the inclined straight line section is arranged close to one side of the outer plate. In one embodiment, the leakage edge further comprises a first straight line segment connected between the outer panel and the concave edge segment. In one embodiment, the leakage edge further comprises a second straight line segment connected between the concave edge segment and the parallel straight line segment, and the second straight line segment is perpendicular to the parallel straight line segment. In one embodiment, the concave edge segment satisfies a fairing condition. In one embodiment, in the bilge keel assembly, bilge keel monomers at the bow end and/or the stern end are provided with an anti-tilting part, and the anti-tilting part is the end part, far away from the first depressurization space, of the bilge keel monomers along the length direction of the bilge keel monomers. In one embodiment, the beveled edge of the declivity has a declivity concave section that is concave inward toward the declivity to define a second relief space, and at least a portion of the declivity proximate the second relief space is a second deformable region. In one embodiment, the bilge keels comprise a first plate portion and a second plate portion that are in lap joint, wherein the first depressurization space is disposed in the first plate portion. Above-mentioned bilge fossil fragments subassembly, bilge fossil fragments monomer are