CN213200012U

CN213200012U - Shallow-draft high-speed transportation boat with zigzag fluid slamming-resistant structure

Info

Publication number: CN213200012U
Application number: CN202022296162.8U
Authority: CN
Inventors: 马山; 邵文勃; 段文洋; 邵飞; 徐倩; 申玫; 邹劲
Original assignee: Harbin Engineering University; Army Engineering University of PLA
Current assignee: Harbin Engineering University; Army Engineering University of PLA
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-05-14
Anticipated expiration: 2030-10-15

Abstract

The utility model provides a shallow draft high-speed transportation ship with anti fluid slamming structure of zigzag, characterized by adopts binary type design, and the shape is thin sharply, including two lamellar bodies and the channel sliding surface of setting in two lamellar bodies, channel sliding surface top sets up anti fluid slamming strip, anti fluid slamming strip first along longitudinal extension to the bottom of a boat middle part, anti fluid is the inverse triangle-shaped, has the circular arc transition in the bottom of anti fluid slamming strip and the place that meets with the channel sliding surface. The utility model provides a draft is shallow, high navigational speed, conveying efficiency is higher, has good anti-slamming performance's transportation ship simultaneously, and the main ship body has adopted the form that binary and monomer combined together, under guaranteeing that the beach is stable and the shallower basic requirement of draft, the inside gas-liquid that can produce of channel mixes the layer during high-speed navigation helps reducing frictional resistance, and the while can provide the cushioning effect to the pitching and the motion of dangling of transportation ship.

Description

Shallow-draft high-speed transportation boat with zigzag fluid slamming-resistant structure

Technical Field

The utility model relates to a shallow draft high-speed transportation ship especially relates to a shallow draft high-speed transportation ship with anti fluid slamming structure of zigzag, belongs to boats and ships technical field.

Background

With the progress of science and technology and the improvement of productivity, natural resources become an important factor of national development potential. For a large ocean country, the active maintenance and development of ocean resources are very necessary. A large number of reefs are distributed in the east sea and the south sea of China, the reefs are often lack of perfect port facilities, and the operation of transporting and replenishing the reefs can be completed only by means of some transport boats with shallow draft in a beach mode. Such transport boats tend to be relatively flat at the bottom, are subject to high fluid slamming loads in rough sea conditions, run the risk of damaging the hull structure, and increase further with increasing the speed of the transport boat.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving above-mentioned technical problem and providing a shallow draft high-speed transportation ship with zigzag anti fluid slamming structure, it is shallow to have the draft, high navigational speed, conveying efficiency is higher, has the advantage of good anti fluid slamming load performance simultaneously.

The purpose of the utility model is realized like this:

a shallow-draft high-speed transportation boat with a zigzag fluid slamming structure is designed in a double-body mode, is tapered and thin, and comprises two sheet bodies and a channel sliding surface arranged in the two sheet bodies, wherein a fluid slamming resistant strip is arranged at the top of the channel sliding surface, the fluid slamming resistant strip boat head longitudinally extends to the middle part of the bottom of the boat, the fluid slamming resistant strip is in a reverse triangle shape, and circular arc transition sections are arranged at the bottom of the fluid slamming resistant strip and at the part connected with the channel sliding surface

The utility model discloses still include such characteristics:

1. the outer side surface of the sheet body is vertical to the water surface, the transverse position of the sheet body changes slightly along the direction of the ship length, the inner side of the sheet body has an inclination angle, the sheet body gradually decreases along the direction of the ship length and finally tends to be horizontal, the sheet body and a channel sliding surface are fused into a whole body, the height of the channel sliding surface is gradually reduced from a ship head to a ship tail, and the shape of the transverse section is transited from a catamaran shape to a single flat bottom shape;

2. the fluid slam bar is generally shaped like a sawtooth when viewed in cross-section.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a draft is shallow, high navigational speed, conveying efficiency is higher, has good anti-slamming performance's transportation ship simultaneously, and the main ship body has adopted the form that binary and monomer combined together, under guaranteeing that the beach is stable and the shallower basic requirement of draft, the inside gas-liquid that can produce of channel mixes the layer during high-speed navigation helps reducing frictional resistance, and the while can provide the cushioning effect to the pitching and the motion of dangling of transportation ship.

On the basis of the main boat body, anti-slamming bars are arranged on the sliding surface of the channel. The anti-slamming bars are arranged transversely in a sawtooth shape in a cross section view, and when a wave generates vertical impact on the boat body, the wave is firstly subjected to the anti-slamming bars, and in the process, part of energy of the wave is consumed by the sawtooth-shaped anti-slamming bar array, so that the transient slamming pressure of the wave finally reaching the main boat body is greatly reduced. Meanwhile, since the anti-slamming strip is arranged along the longitudinal direction and stops at the middle part of the boat bottom, the width of the anti-slamming strip is narrow, the surface area of the anti-slamming strip is small, and therefore the influence on the total resistance of the transportation boat is small. The bottom depth of the anti-slamming strip does not exceed the bottom depth of the two sheets, so that the anti-slamming strip is not easy to wear when sitting on a beach or landing on a shore.

Drawings

Fig. 1 is a schematic bottom structure of the present invention;

fig. 2 is a cross-sectional schematic view of the present invention;

fig. 3 is a partial schematic view of the anti-slamming strip structure of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a high-speed transportation ship. The prow of the boat adopts a catamaran design and is sharp and thin in shape. A channel sliding surface is arranged between the two sheet bodies. The outer surface of the sheet body is almost vertical to the water surface, and the transverse position of the sheet body changes slightly along the length direction of the ship. The inner side of the sheet body has a certain inclination angle, gradually decreases along the ship length direction, finally tends to be horizontal, and is integrated with the sliding surface of the channel. The height of the sliding surface of the channel is gradually reduced from the boat head to the boat tail, and the shape of the cross section of the channel is transited from a catamaran shape to a single flat bottom shape.

On the basis of the main boat body, a fluid slamming resisting strip is arranged at the top of the channel, and the fluid slamming resisting strip extends from the boat head to the middle of the boat bottom along the longitudinal direction.

The anti-fluid slamming strip is in an inverted triangle from the cross section, and the arc transition is arranged at the bottom of the anti-fluid slamming strip and at the position connected with the sliding surface of the channel, so that the structural damage caused by excessive local stress is prevented. In the prow section, the vertical dimension of the anti-fluid slam is larger. As the anti-fluid slam bar extends longitudinally, the vertical dimension of the anti-fluid slam bar decreases as the channel height decreases. The fluid slam is disposed every other short length in the transverse direction, and the fluid slam is disposed generally shaped like a saw tooth when viewed in transverse cross-section.

Referring to fig. 1, the hull head is designed as a catamaran and can be divided into two plates 2 and a channel sliding surface 3. The outer surface of the sheet 2 is almost perpendicular to the water surface, and its transverse position changes less in the direction of the length of the ship. The inner side of the sheet body 2 has a certain inclination angle, gradually decreases along the ship length direction, finally tends to be horizontal, and is integrated with the channel sliding surface 3. The two sheet bodies 2 and the channel sliding surfaces form a channel, the height of the channel is gradually reduced from the boat head to the boat tail, and the cross section shape is transited from a catamaran shape to a single flat bottom shape. A plurality of fluid slamming bars 1 are provided on the channel planing surface 3 of the bow, the fluid slamming bars 1 extending longitudinally from the bow into the vessel. The fluid slamming strip 1 is not needed to be arranged at the rear part of the ship because the vertical movement of the ship is weakened.

In connection with fig. 2, the transport vessel can be seen as moving vertically in each cross section when it is subjected to heave and pitch motions. When the ship moves downwards relative to the wave surface and the relative movement speed of the ship is high, the waves generate huge local slamming load effect on the ship body, and the sheet body 2 divides the waves into two parts, namely a channel outer space 5 and a channel inner space 4 which are relatively independent. The wave in the space 4 in the channel continues to climb upwards and encounter the anti-slamming strips 1 arranged at equal intervals transversely as if the wave is cut by sawteeth, and part of energy is consumed in the process, so that when the wave finally reaches the channel sliding surface 3 after passing through the anti-slamming strips 1, the energy is seriously attenuated, and the transient slamming pressure of the channel sliding surface 3 is greatly reduced. The bottom depth of the anti-slamming strip 1 does not exceed the bottom depth of the two sheets 2 and is therefore less prone to wear when sitting on a beach or landing on a shore.

Referring to fig. 3, the anti-fluid slam 1 is in the shape of an inverted triangle when viewed in cross-section, and there is a circular arc transition at the bottom of the anti-fluid slam 1 and where it meets the raceway sliding surface 3 to prevent structural damage due to excessive local stress. The fluid slam bar 1 is laterally aligned like a saw tooth. The anti-fluid slamming strip 1 is of narrow width and has a small surface area and therefore has a small effect on the overall resistance of the boat. When the transportation boat moves at high speed, gaps among the multiple anti-fluid slamming bars 1 are filled with a large amount of gas-liquid mixture, and the anti-fluid slamming bars also play a role in buffering the pitching and heaving motions of the transportation boat.

Claims

1. A shallow-draft high-speed transportation boat with a zigzag slamming-resistant structure is characterized in that the shallow-draft high-speed transportation boat is of a double-body type design, is sharp and thin in shape and comprises two sheet bodies and a channel sliding surface arranged in the two sheet bodies, a slamming-resistant strip is arranged at the top of the channel sliding surface, the slamming-resistant strip boat head longitudinally extends to the middle of the bottom of the boat, and the slamming-resistant strip is in an inverted triangle shape and has circular arc transition at the bottom of the slamming-resistant strip and at the part connected with the channel sliding surface.

2. The shallow draft high speed transportation craft with zigzag anti-fluid slamming structure as claimed in claim 1, wherein the outside surface of said sheet body is vertical to the water surface, the lateral position of said sheet body is less changed along the direction of ship length, the inside of said sheet body has an inclination angle, gradually decreases along the direction of ship length, finally tends to horizontal, and merges with the channel sliding surface, the height of said channel sliding surface gradually decreases from the ship head to the ship tail, the cross section shape is transited from catamaran type to single flat bottom type.

3. The shallow draft high speed transportation craft of claim 1 having a zigzag fluid slam resistant construction wherein the fluid slam resistant strips are arranged generally shaped as a zigzag when viewed in cross-section.