CN103895853A

CN103895853A - Design method for opening embedded cabin

Info

Publication number: CN103895853A
Application number: CN201410144202.3A
Authority: CN
Inventors: 贺媛媛; 董晓龙; 王雅琳
Original assignee: Beijing Institute of Technology BIT
Current assignee: Beijing Institute of Technology BIT
Priority date: 2014-04-11
Filing date: 2014-04-11
Publication date: 2014-07-02
Anticipated expiration: 2034-04-11
Also published as: CN103895853B

Abstract

The invention belongs to the technical field of aircrafts, particularly relates to a design method for opening an embedded cabin. The embedded cabin adopts a rotary mount bracket to carry arms and ammunition or throwing objects, and one or a plurality of baffle plates are connected onto a rotary shaft of the rotary mount bracket. When a plurality of baffle plates exist, the throwing objects and the baffle plates are alternatively distributed and are driven by a driving device along with the rotary shaft. The embedded cabin is not provided with a cabin door or a subsystem thereof, and the position of the original cabin door is empty to form a throwing gap. When not in throwing, the baffle plates are arranged above the gap and are sealed through a sealing device, and thereby the integrity of the appearance of the aircraft is maintained. When needing to throw, the rotary shaft rotates, the baffle plates above the gap move off to expose the throwing objects positioned in a window, and the throwing objects are thrown through an ejection device. The flying quality is high. Meanwhile, the design complexity degree of the whole embedded cabin is reduced, the needed parts are also correspondingly decreased, the precision is improved, the total weight of the embedded cabin is reduced, and the manufacturing cost is reduced.

Description

The method of designing that open in a kind of built-in type cabin

Technical field

The invention belongs to vehicle technology field, be specifically related to the method for designing that open in a kind of built-in type cabin.

Background technology

There is the aircraft of many military and civilians to need built-in type cabin to load weapons and ammunitions or missile.

The mode that aircraft loads weapons and ammunitions or missile mainly contains two kinds of external hanging type and built-in types.External hanging type is to adopt hanger to be suspended on wing bottom, underbelly and the sidepiece of aircraft; Built-in type is the load mode that weapons and ammunitions or missile is all packed into aircraft inside.

For military spacecraft, as fighter plane, take plug-in method to carry out carrying arms ammunition traditionally more.At present, world many countries has started the development of fourth generation fighter successively, new-generation fighter with stealthy, supersonic speed is cruised, the feature of high maneuverability, over the horizon operation and short take-off and landing (STOL) makes the more typical three generations's machine of comprehensive combat performance have qualitative leap.Because traditional external stores mode has greatly been destroyed stealth and the dynamic performance of aircraft; Meanwhile, external stores is destroyed the fluency of aircraft configuration, has increased the aerodynamic drag of aircraft, thereby has reduced every aircraft important parameter such as cruising speed and manoevreability, and therefore fourth generation fighter must adopt the design of built-in type weapon-bay.

Long-range bomber requires to have sizable bullet-loading capacity, outer hanging can not meeting design requirement completely, and therefore, intermediate-range bomber is all positioned over bomb in fuselage, and belly adopts large opening that hatch door is set, and forms in bomber formula and buries internal weapon bays.

Small aircraft is as unmanned plane, and it has become the emerging combat aircraft that air force of various countries competitively develops at present.In order to ensure that unmanned plane has good penetration ability and viability in face of Modern Aerial Defense weapon, it should have good low detectable performance.As realizing a stealthy part, Unmanned combat aircraft is buried internal weapon bays design in should using, weapon load carry in fuselage interior.

General built-in type weapon-bay is all opening door hatch door.While dropping a bomb, first hatch door is opened, then discharged ammunition, and then close hatch door.In high dynamic pressure situation, open the cabin and drop a bomb, hatch door is subject to large aerodynamic effect may produce distortion, and hatch door driver train also may be affected, and open and close action can not be completed smoothly, and then affect carry and the input of other ammunition in cabin.Meanwhile, aircraft is subject to the impact that hatch door is opened, and aerodynamic configuration can change, and can not ensure its flight quality.

For civilian aircraft, as air tanker etc., they some what take is built-in type cabin.Although these aircraft flight speed are conventionally not high, aerodynamic arrangement that still can change of flight device when opened door, affects its flight quality, also may affect the input of object in cabin, and therefore the unlatching in the built-in type cabin of civilian aircraft design is also extremely important.

The hatch door system in built-in type cabin has multiple subsystems, comprises propulsion source, hatch door mechanism, synchronizer gear, spoiler mechanism, docking lock and down lock etc., and the design of each subsystem is very complicated.And most of built-in types cabin has two hatch doors, should keep its synchronism of opening the cabin to ensure again its reliability, this makes the unit design difficulty of hatch door larger.Therefore, hatch door open method becomes the key element that affects the design of built-in type cabin.

Summary of the invention

The object of the invention is the other problems such as somewhat complex design, multiple component in order to solve the caused aerodynamic configuration variation issue of aircraft opened door in flight course and built-in type cabin door system, the method of designing that open in a kind of simple and reliable built-in type cabin is proposed, make aircraft open while input and avoid opening hatch door in built-in type cabin, thereby obtain better flight quality.

The object of the invention is to be achieved through the following technical solutions.

The method of designing that open in built-in type cabin, built-in type cabin adopts revolving carry frame to come carrying arms ammunition or missile, and many pieces of missiles of portability have ejection mechanism to throw in ammunition or object on carry frame.There are one or more baffle plates to be connected in the rotating shaft of rotating hanging carrier, can need to design by concrete input the number of carry object and baffle plate.In the time having multiple baffle plate, missile and baffle plate are alternately distributed, and they are driven by actuating device with rotating shaft.The uneasy stowage door in built-in type cabin and subsystem thereof, leaving a blank for the position of hatch door originally, forms one and throw in breach.In the time not throwing in, baffle plate, above breach, has sealing arrangement sealing, to keep the integraty of aircraft profile.Need to throw in time, S. A. rotates, and breach top baffle plate is removed, and exposes the missile that is positioned at window, is thrown in by catapult-launching gear.In the time that baffle design is one, after having thrown in, rotating shaft rotates backward, and baffle plate goes back to breach top; In the time having multiple baffle plate, the next baffle plate after the object space in being thrown in forwards breach top to, and built-in type cabin is closed immediately, and input completes.Wherein, though built-in type cabin adopts revolving carry frame, cross section, cabin is not limited to circle.

Beneficial effect

While adopting method of designing of the present invention to open built-in type cabin, baffle plate can not be subject to large aerodynamic effect and produce distortion, aircraft can not be subject to outwards opening because of hatch door the impact that caused aerodynamic configuration changes, and makes aircraft obtain more excellent flight quality.Meanwhile, the design complexity reduction in whole built-in type cabin, the also corresponding minimizings such as the parts that need, have improved precision, have reduced the total weight in built-in type cabin, have reduced manufacturing cost.

Brief description of the drawings

Fig. 1 is the built-in type cabin schematic layout pattern of subdivision section;

Fig. 2 is cross section, circular built-in type cabin;

Number in the figure: 1-hangs internal weapon bays, 2-drives cabin, 3-missile, 4-S. A., 5-driving device, 6-actuating device, 7-actuating device support, 8-baffle plate, 9-mechanism box.

Detailed description of the invention

Below in conjunction with drawings and Examples, design plan of the present invention is elaborated.

The present invention proposes and has realized the method for designing that open in a kind of built-in type cabin, and the method can be used for adopting all kinds of aircraft in built-in type cabin.

Taking cross section as circular, and whole cabin section is divided into and hangs internal weapon bays 1 and drive cabin 2 two parts, the built-in type cabin of three missiles 3 of carry is example.Wherein, hang internal weapon bays 1 for the cabin section of rotating hanging carrier is installed, drive cabin 2 for the cabin section of driver train is installed, general illustration is (each cabin section also can not be distinguished in built-in type cabin, and rotating hanging carrier, missile 3, mechanism's box 9, actuating device 6 etc. are together arranged in cabin) as shown in Figure 1.Rotating hanging carrier can divide S. A. 4 and baffle plate 8 two parts.S. A. 4 two ends are arranged on and are hung on internal weapon bays 1 by bearing, and wherein one end is stretched out and hung internal weapon bays 1, for driving device 5 is installed.Driving device 5 is connected with actuating device 6, and actuating device 6 supports fixing by actuating device support 7.

As shown in Figure 2, S. A. 4 and three baffle plate 8 one, can lead agency box 9 and missile 3 rotate.Three mechanism's boxes 9 are evenly installed on S. A. 4, and both are connected by screw and nut.Wherein, the interior installation catapult-launching gear of mechanism's box 9 and other mechanisms, realize the function of launching missile 3 and carry.

By considering the size of missile 3, design breach tangential dimension corresponding on the body of cabin and the size of baffle plate 8.In the time not throwing in, baffle plate 8, above breach, has sealing arrangement sealing.Need to throw in time, S. A. 4 rotates to a side, and breach top baffle plate 8 is removed, and exposes the missile 3 that is positioned at window, is thrown in by the catapult-launching gear in mechanism's box 9.After input completes, S. A. 4 is rotated further, and next baffle plate 8 moves to breach top, and built-in type cabin is closed immediately, and input completes.

Above-described specific descriptions; object, technical scheme and beneficial effect to invention further describe; institute is understood that; the foregoing is only specific embodiments of the invention; be used for explaining the present invention, the protection domain being not intended to limit the present invention, within the spirit and principles in the present invention all; any amendment of making, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.

Claims

1. the method for designing that open in built-in type cabin, is characterized in that: built-in type cabin adopts revolving carry frame to come carrying arms ammunition or missile, on carry frame, has ejection mechanism; There are one or more baffle plates to be connected in the rotating shaft of rotating hanging carrier, need to design the number of carry object and baffle plate by concrete input; In the time having multiple baffle plate, missile and baffle plate are alternately distributed, and they are driven by actuating device with rotating shaft; The uneasy stowage door in built-in type cabin and subsystem thereof, leaving a blank for the position of hatch door originally, forms one and throw in breach; In the time not throwing in, baffle plate, above breach, has sealing arrangement sealing, to keep the integraty of aircraft profile; Need to throw in time, S. A. rotates, and breach top baffle plate is removed, and exposes the missile that is positioned at window, is thrown in by catapult-launching gear; In the time that baffle design is one, after having thrown in, rotating shaft rotates backward, and baffle plate goes back to breach top; In the time having multiple baffle plate, the next baffle plate after the object space in being thrown in forwards breach top to, and built-in type cabin is closed immediately, and input completes.

2. the method for designing that open in a kind of built-in type as claimed in claim 1 cabin, is characterized in that; Though built-in type cabin adopts revolving carry frame, cross section, cabin is not limited to circle.