CN100592998C

CN100592998C - Air-cushion ship based on air stabilizer fin

Info

Publication number: CN100592998C
Application number: CN200710072349A
Authority: CN
Inventors: 毕升; 饶志强; 王天
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2007-06-13
Filing date: 2007-06-13
Publication date: 2010-03-03
Anticipated expiration: 2027-06-13
Also published as: CN101070067A

Abstract

The invention provides a hovercraft base on air fin balance wing. It contains a hull with an engine equipped on its back. An airscrew inside ducted is set on the airscrew. An air rudder locates on thetail of the hull and an apron sets on its lower part. The balance wing with tip plates is equipped on the tail of the hull. The whole hull has high stability, seakeeping performance and controllability, which reduces the abrasion on the apron and the requirements of its structure complexity. It has advantages of simple mechanical structure and easy realization.

Description

Subtract the air cushion vehicle that shakes balance wing based on air

(1) technical field

The present invention relates to a kind of air cushion vehicle, particularly relate to a kind of air cushion vehicle with advantages of higher stability, rough water quality and manipulative capability.

(2) background technology

Air cushion vehicle is " hovercraft " again, is a kind of high-performance ship, and its structure and other boats and ships are very different.It supports hull weight by following air-cushion pressure, by air cushion layer the hull and the water surface or ground is isolated.Its adopts air screw to advance, and has amphibious ability, can be on the meadow, marsh, river surface, shoal navigation. and air cushion vehicle is born in the fifties in last century, and through the unremitting effort of various countries, air cushion vehicle all has aspect military and civilian very widely and uses now.

At present, the stability of air cushion vehicle, rough water quality and manipulative capability are the main directions of various countries' research.Mention in " high-performance ship hydrodynamic force principle and design " (Zhao Lianen, Han Duanfeng write, and press of Harbin Engineering University publishes) book: methods such as the show apron being configured and both sides, the back air-cushion pressure that tilts provided stability after air cushion vehicle was mainly cut apart, tilted by air cushion.Turning to of air cushion vehicle is main by aerodynamic rudder.There is following some shortcoming in the air cushion vehicle of this structure: the one, enough lift powers be arranged; The 2nd, skirt structure is complicated, and the apron wearing and tearing are more serious; The 3rd, because air rudder efficient can not show a candle to water rudder efficient height, add upper hull speed height, inertia is big, so its radius of turn is big and be difficult to go as course.

Number of patent application is 00109309.6, and name is called have been put down in writing a kind of pressurized air of coming by means of blowing engine and support the air cushion vehicle that ship is heavy in the patent document of " air cushion vehicle ".The hull both sides are respectively equipped with the some hard flanks that can rotate around the axis, the flank regulating mechanism is by an arc-shaped rail and is arranged on the rolling body that rolls in the arc-shaped rail and constitutes, bow and stern are respectively arranged with lift and control the first wing and lift control empennage, cancelled the flexible skirt of traditional air cushion vehicle, efficiently solve long-term puzzlement people's air cushion bottom abrasion problem, also can distil is the mixed type of air cushion vehicle and ground effect aircraft.Though this technical scheme can alleviate the wearing and tearing of apron, and hull has advantages of higher stability, some shortcoming below existing: the one, and the complicated in mechanical structure of the wing; The 2nd, its wing can only provide stability for hull, can not improve the manipulative capability of hull.

(3) summary of the invention

The object of the present invention is to provide a kind of have preferably stability, rough water quality and a manipulative capability subtract the air cushion vehicle that shakes balance wing based on air.

The object of the present invention is achieved like this: it comprises hull, rear portion at hull is equipped with driving engine, on the axle of driving engine screw propeller is installed, propeller cowling is in duct, the afterbody of hull is provided with aerodynamic rudder, the bottom of hull is provided with apron, it also comprises the balance wing that is arranged on the hull afterbody, balance wing is provided with the wing tip end plate, described balance wing is connected with hull by mast, balance wing is divided into left wing, right flank two parts, and left wing is connected by a main shaft with right flank, controls left wing respectively and right flank is rotated around main shaft with two servies.

The present invention can also comprise some architectural features like this:

1, the air exhausting duct of described duct has two, and one enters apron downwards and sprays to hull bottom through fumarole, and another is arranged backward to aerodynamic rudder.

2, there is the angle of attack of an about 10-15 degree on driving engine and hull bottom plane.

Compare with traditional air cushion vehicle, the present invention has increased by one group of balance wing that can change the angle of attack on hull structure.This balance wing is divided into left and right sides two parts.Left wing is connected by a main shaft with right flank, and left wing and right flank are relatively independent, and can distinguish up and down and to rotate, but i.e. both interlock of left wing and right flank, also can be differential.

During the air cushion vehicle navigation, balance wing produces lift, improves stability, rough water quality and the manipulative capability of hull by the lift of balance wing generation.Its concrete principle of work is as follows:

During hull generation trim, face upward head, can make the both wings interlock,, make both wings produce suitable lift the inhibition moment that hull is faced upward head is provided, to strengthen the fore-and-aft stability and the rough water quality of hull by changing the angle of attack of both wings as hull; During hull generation heel, both wings differential (wing is a positive incidence, and another wing is the negative angle of attack or zero angle of attack) provide the moment that suppresses alist by the lift difference of both wings, improve the lateral stability and the rough water quality of hull, be tilted to the left as hull, can make left wing is positive incidence, and right flank is the negative angle of attack, like this, the lift that left wing produces is greater than right flank, and the lift difference of both wings can produce the moment that hull is tilted to the right, thereby alleviates the "Left"-deviationist of hull; When hull turns to, both wings are differential, lift difference by both wings provides and makes hull bevelled moment to the inside, and then the centripetal force that hull turns to is provided, and (traditional air cushion vehicle method provides the centripetal force that turns to, thereby its Turning radius is the big and very difficult flight path that keeps), hide in conjunction with direction of air again, hull is turned to flexibly, reduce radius of turn, improved the manipulative capability of air cushion vehicle.

Advantage of the present invention is mainly reflected in:

1, whole hull has advantages of higher stability, rough water quality and manipulative capability;

2, reduced wearing and tearing, also reduced requirement simultaneously the skirt structure complexity to apron;

3, physical construction is simple, realizes easily.

(4) description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of hull;

Fig. 3 is the structural representation of apron;

Fig. 4 is that air-flow moves towards scheme drawing;

Fig. 5 is the fumarole scheme drawing.

(5) specific embodiment

For example the present invention is done description in more detail below in conjunction with accompanying drawing:

In conjunction with Fig. 1, subtract the mast 1-9 that mainly comprises hull 1-1, driving engine 1-2, screw propeller 1-3, duct 1-4, balance wing 1-5, wing tip end plate 1-6, aerodynamic rudder 1-7, apron 1-8, the stable equilibrium wing of the air cushion vehicle that shakes balance wing based on air;

In conjunction with Fig. 2, the composition of hull comprises No. 1 rib 2-1, No. 2 rib 2-2, No. 3 rib 2-3, No. 4 rib 2-4, No. 5 rib 2-5, side dividing plate 2-6, upper cover plate 2-7, median septum 2-8 and base plate 2-9.

In conjunction with Fig. 3, the composition of apron comprises: stem apron 3-1, finger apron 3-2, principal part apron 3-3 and fumarole 3-4.

Described balance wing mainly is made up of several aerofoil profiles and beam, connects with beam between each aerofoil profile, constitutes the skeleton of balance wing, and covering just forms balance wing on skeleton again.Balance wing is connected with hull by mast.This balance wing is divided into left and right sides two parts, left wing is connected by a main shaft with right flank, be respectively arranged with servo on left wing and the right flank, control left wing respectively and right flank is rotated around main shaft with two servies, promptly the control to left wing and right flank is separate, but thereby make both interlocks of both wings, also can be differential.

Of the present inventionly subtract the air cushion vehicle that shakes balance wing based on air and adopt a driving engine 1-2, a screw propeller 1-3 double as to hover and power plant, driving engine 1-2, air screw 1-3, aerodynamic rudder 1-7 and balance wing 1-5 are installed in the ship stern, and there is the angle of attack of about 15 degree on driving engine and hull bottom plane.Apron 1-8 is arranged around the hull.

In conjunction with as Fig. 4 and Fig. 5, when setting sail, driving engine 1-2 drives screw propeller 1-3 rotation, air-flow has been divided into two strands, and one enters apron 1-8 by duct 1-4 bottom and forms air flue, sprays to hull bottom through fumarole 3-4 again, form one alow and be higher than atmospheric air cushion, hull is held up.Another strand air-flow is discharged backward from duct 1-4, promotes air cushion vehicle and advances.

Claims

1, a kind of air cushion vehicle that shakes balance wing that subtracts based on air, it comprises hull, rear portion at hull is equipped with driving engine, on the axle of driving engine screw propeller is installed, propeller cowling is in duct, the afterbody of hull is provided with aerodynamic rudder, the bottom of hull is provided with apron, it is characterized in that: further comprising the balance wing that is arranged on the hull afterbody, balance wing is provided with the wing tip end plate, and described balance wing is connected with hull by mast, and balance wing is divided into left wing, right flank two parts, left wing is connected by a main shaft with right flank, controls left wing respectively and right flank is rotated around main shaft with two servies.

2, according to claim 1ly subtract the air cushion vehicle that shakes balance wing based on air, it is characterized in that: the air exhausting duct of described duct has two, and one enters apron downwards and sprays to hull bottom through fumarole, and another is arranged backward to aerodynamic rudder.

3, according to claim 1 and 2ly subtract the air cushion vehicle that shakes balance wing based on air, it is characterized in that: there is the angle of attack of an about 10-15 degree on driving engine and hull bottom plane.