CN103612705A

CN103612705A - Water-surface single-body unmanned boat of single-water-spraying propeller

Info

Publication number: CN103612705A
Application number: CN201310668385.4A
Authority: CN
Inventors: 杨松林; 吴艳; 王保明; 俞强
Original assignee: Jiangsu University of Science and Technology
Current assignee: Jiangsu University of Science and Technology
Priority date: 2013-12-11
Filing date: 2013-12-11
Publication date: 2014-03-05
Anticipated expiration: 2033-12-11
Also published as: CN103612705B

Abstract

The invention discloses a water-surface single-body unmanned boat of a single-water-spraying propeller. A composite stabilization fin is connected under the middle of a boat stern and is composed of an appendage and a wing. The appendage is symmetrical about a boat bottom in a left-and-right mode and perpendicular to the boat bottom, and the upper end of the appendage is seamlessly connected with the boat bottom. The lower end of the appendage is fixedly connected with the wing which is horizontally arranged, and the wing is symmetric about the appendage in a left-and-right mode. Water inlet channels are formed in the wings and the appendage, and water inlets of the water inlet channels are formed in the front portion of the bottom of the wing and communicated with a water outlet through the water inlet channels. Due to the action of the wing, additional lift force is generated, the sliding efficiency is further improved, the composite stabilization fin facilitates the shipping-direction stability, the roll amplitude reduction and the like of the boat, the defect that an existing water-surface unmanned sliding boat based on water spraying propelling is low in sliding efficiency is effectively overcome, due to rapidity, the water-surface single-body unmanned boat of the single-water-spraying propeller is superior to the existing water-surface unmanned sliding boat based on water spraying propelling, and the shipping-direction stability and seaworthiness are obviously improved.

Description

The water surface monomer unmanned boat of single spraying water propeller

Technical field

The present invention relates to a kind of ships and light boats, refer in particular to a kind of water surface monomer unmanned boat with single spraying water propeller for the various operations of water surface dynamic monitoring.

Background technology

At present, water surface unmanned boat generally adopts haplotype, because displacement and the yardstick thereof of ship type are all little, responsive especially for the environment of outside wind, wave and current, sways motion amplitude large in stormy waves.For keeping the more stable speed of a ship or plane, for discharge type ships and light boats, generally in hull bottom, install waterjet propulsor additional.Because the tonnage of water surface monomer unmanned boat is little, during navigation generally all in partly sliding or complete sliding state, now, simply former partly slide or slide hull itself directly install waterjet propulsor additional, water inlet is on planing surface, just destroyed planing surface, resistance increased, thus cause ship slide efficiency and rapidity declines to a great extent.

Summary of the invention

The object of the invention is to have for overcoming the existing water surface monomer unmanned boat problem that slides efficiency and rapidity, provide a kind of afterbody hull bottom of single spraying water propeller to there is the water surface monomer unmanned boat of stable composition fin, water inlet, under planing surface, has good rapid charater.

The present invention is achieved by the following technical programs: comprise captain boat body, the water outlet of waterjet propulsor is on the captain boat body of ship stern, under ship stern middle part, connect stable composition fin, stable composition fin consists of attached body and wing, attached body is with respect at the bottom of symmetrical at the bottom of ship and vertical ship, seamless link at the bottom of attached body upper end and ship, attached body lower end is fixedly connected with the wing of horizontal arrangement, and wing is symmetrical with respect to attached body; On wing and attached body, have water inlet flow channel, the water inlet of water inlet flow channel is partially anterior in wing bottom, and water inlet communicates with water outlet by water inlet flow channel.

The present invention, due to the effect of short wing, has produced additional lift, has further improved and has slided efficiency.At the bottom of stern ship, stable composition fin is for the course stability of ship with to subdue amplitude of roll etc. all favourable, effectively overcome the unmanned glider of the water surface based on waterjet propulsion at present and slided inefficient shortcoming, its rapidity is better than the unmanned glider of the water surface based on waterjet propulsion at present, has obviously improved course stability and navigability.

Accompanying drawing explanation

Fig. 1 is the front view of the water surface monomer unmanned boat of single spraying water propeller of the present invention;

Fig. 2 is that enlarged drawing is looked on the right side of Fig. 1;

Fig. 3 is N-N semi-sictional view enlarged drawing in Fig. 2;

Fig. 4 is F-F profile in Fig. 1;

Fig. 5 is M-M profile in Fig. 2, and (a) figure is that wing is bow type, and (b) figure is that wing is aerofoil profile;

Fig. 6,7, the 8th, the left view of afterbody hull bottom profile in Fig. 1;

In figure: 1--superstructure, 2-captain boat body, 3-stable composition fin, 31-wing, 32-attached body, 33-water inlet, 34-water outlet.

The specific embodiment

Shown in Fig. 1,2, the present invention includes captain boat body 2 and superstructure 1, the designed waterline length of captain boat body 2 is L, and BL is baseline, and superstructure 1 is mainly arranged on the middle front part of hull, and superstructure 1 is mainly arranged on the middle front part of hull, to there is the good visual field.

The water outlet 34 of waterjet propulsor is on the captain boat body 2 of ship stern.Under ship stern middle part, connect stable composition fin 3, the bottom of captain boat body 2 forms with the part without stable composition fin by having the part of stable composition fin 3, the partial-length with stable composition fin 3 accounts for the 1/4-2/5 of designed waterline length L, the main length according to the waterjet propulsor inlet and outlet channel of selecting of determining of this length is determined, general than the large 15-20% of the length of waterjet propulsor inlet and outlet channel, B is designwaterline breadth.

Stable composition fin 3 consists of attached body 32 and wing 31, and attached body 32 and wing 31 adopt mechanical connection manner to be linked as integral body, and wing 31 and attached body 32 are made by steel, aluminum alloy or nonmetallic composite, and wing 31 is solid global facility.Attached body 32 is perpendicular at the bottom of ship, seamless link at the bottom of attached body 32 upper ends and ship, and attached body 32 lower ends are fixedly connected with wing 31, wing 31 horizontal arrangement.Attached body 32 is with respect to the attached body of symmetrical stream line pattern at the bottom of ship, and wing 31 is symmetrical with respect to attached body 32.

Shown in Figure 3, on wing 31 and attached body 32, have water inlet flow channel, the water inlet 33 of water inlet flow channel is partially anterior in wing 31 bottoms, and water inlet 33 communicates with the water outlet 34 on captain boat body 2 by water inlet flow channel.Water (flow) direction as shown by the arrows in Figure 3.Attached body 32 height h equal the 1/3-3/4 of the wide B of ship, for high speed draining or this height of semiplaning craft h capping value, and take off limit value for this height of glider h.

Shown in Figure 4, the cross-sectional plane of attached body 32 is symmetrical stream line patterns, and cross-sectional plane increases gradually from front and back to centre.The length b of attached body 32 is 0.2-0.3 of designed waterline length L, and the ratio of left and right width a and length b is 1/10-1/4.For high speed draining or this ratio capping value of semiplaning craft, and take off limit value for this odds ratio of glider.

Shown in Fig. 2 and Fig. 5, the vertical section of wing 31 is that (Fig. 5 a) or aerofoil profile (Fig. 5 b) for bow type, wing 31 left and right width c equal the 1/3-2/3 of the wide B of ship, front and back length b1 is 0.2L-0.4L, isometric or reduce distribution from middle part broad ways, the ratio of its height a1 and chord length b1 is 1/20-1/10.After leaning on for center of gravity, or in partly sliding or slide the ship of lower limit region, width c capping value, height a1 and chord length b1 be than also capping value, and for center of gravity partially after, or in sliding the ship in middle upper limit region, its width c takes off limit value, height a1 and length b1 than also taking off limit value.

Shown in Fig. 6,7,8, adopt horizontal shape or opening up V-type, circular arc with captain boat body 2 bottoms of stable composition fin 3 connecting bridges.After leaning on for center of gravity, or in partly sliding or slide lower limit region ship, bottom should adopt horizontal shape (Fig. 8), and for center of gravity partially after, or in sliding middle upper limit region ship, bottom should adopt V-type (Fig. 6) or circular arc (Fig. 7).

The bottom line style without stable composition fin 3 parts, adopts V-type, horizontal type, circular arc, trapezoidal (Fig. 7 e) from bow to afterbody 60-75% length range body lines.For ship center of gravity is partially rear or in partly sliding region ship, bow to afterbody 60-75% length range should adopt V-type or horizontal type; For center of gravity partially after or in sliding region ship, should adopt V-type, horizontal type or circular arc; And after leaning on for ship center of gravity, or in sliding middle upper limit region ship, adopt V-type or, horizontal type, circular arc or trapezoidal.

For navigation environment relatively severe (such as: stormy waves is larger etc.) condition under, captain boat body 2 topside body lines can adopt incremental curve extratensive type to be transitioned into straight line extratensive type from bow to afterbody, and under navigation environment general condition, captain boat body 2 topside body lines also can adopt respectively straight line extratensive type figure to be transitioned into straight line extratensive type or general curve extratensive type is transitioned into incremental curve extratensive type from bow to afterbody.

Afterbody hull bottom has the unmanned glider type of single spraying water propeller water surface monomer of stable composition fin 3, its stable composition fin 3 drops to former waterjet propulsor surface skimmer water inlet on planing surface on bottom surface wing 31, water inlet 33 and planing surface have been pulled open to distance, planing surface is not destroyed, thereby actv. has improved and has slided effect, reduce running resistance, thereby improved the rapidity of ship; Due to the effect of wing 31, produced additional lift vertically upward, make hull bottom be more conducive to slide, thereby further improved, slide usefulness; In addition, at the bottom of stern ship, stable composition fin 3 is equivalent to rudder of afterbody, and it is for the course stability of ship and to subdue amplitude of roll etc. be all favourable.So can effectively overcome the current unmanned glider of the water surface based on waterjet propulsion, slide the fatal shortcoming that efficiency is low and navigation is less economical.

Claims

1. the water surface monomer unmanned boat of a single spraying water propeller, comprise captain boat body (2), the water outlet of waterjet propulsor (34) is on the captain boat body (2) of ship stern, it is characterized in that: under ship stern middle part, connect stable composition fin (3), stable composition fin (3) consists of attached body (32) and wing (31), attached body (32) is with respect at the bottom of symmetrical at the bottom of ship and vertical ship, seamless link at the bottom of attached body (32) upper end and ship, attached body (32) lower end is fixedly connected with the wing (31) of horizontal arrangement, and wing (31) is symmetrical with respect to attached body (32); On wing (31) and attached body (32), have water inlet flow channel, the water inlet of water inlet flow channel (33) is partially anterior in wing (31) bottom, and water inlet (33) communicates with water outlet (34) by water inlet flow channel.

2. the water surface monomer unmanned boat of single spraying water propeller according to claim 1, is characterized in that: stable composition fin (3) length accounts for the 1/4-2/5 of designed waterline length.

3. the water surface monomer unmanned boat of single spraying water propeller according to claim 1, is characterized in that: attached body (32) length is the 0.2-0.3 of designed waterline length, and left and right width and length ratio are 1/10-1/4, and attached body 32 highly equals the wide 1/3-3/4 of ship.

4. the water surface monomer unmanned boat of single spraying water propeller according to claim 1, is characterized in that: wing (31) left and right width equals the wide 1/3-2/3 of ship, and front and back length is 0.2L-0.4L, and L is designed waterline length, and height and length ratio are 1/20-1/10.

5. the water surface monomer unmanned boat of single spraying water propeller according to claim 1, is characterized in that: with captain boat body (2) the bottom horizontal shape of employing of stable composition fin (3) connecting bridge or opening up V-type, circular arc.