CN116573135A - Airship capsule and stratospheric airship - Google Patents

Abstract

The application relates to the technical field of airship structures, and provides an airship capsule body and a stratospheric airship, wherein the airship capsule body comprises: a main airbag and an auxiliary airbag; the auxiliary air bag is arranged in the main air bag; the main air bag stores air, and the auxiliary air bag stores buoyancy gas; the sum of the volumes of the auxiliary air bags is larger than the volume of the main air bag; the sum of the volumes of the buoyancy gases loaded by the auxiliary air bags is equal to or smaller than the volume of the main air bag at the working height of the stratosphere. The scheme can prevent buoyancy gas leakage, ensures that the gravity center of the airship is not unbalanced, and controls the change of the internal and external air pressure difference of the airship to be small.

Description

Airship capsule and stratospheric airship

Technical Field

The application relates to the field of stratospheric airship structures, in particular to an airship capsule and a stratospheric airship.

Background

Stratospheric airship has very wide military and civil values, for example, has very great application values in missile defense, communication, remote sensing, space observation, atmospheric measurement and other aspects. Airships are one type of aerostat, being aircraft that utilize lighter-than-air gases to provide lift. The lift obtained by the airship is mainly derived from a lighter-than-air buoyancy gas filled inside, such as hydrogen, helium, etc.

The conventional airship which is researched and designed at present adopts a capsule body structure which is formed by a main air bag (an outer capsule) serving as a helium capsule and auxiliary air bags (inner capsules) serving as a plurality of air bags, for example, chinese patent application CN114313206A. However, when the method is applied to stratospheric airships, the outer bag body is required to have a function layer for preventing the leakage of the buoyancy gas, and the tension generated after the buoyancy gas in the outer bag body is heated and expanded during the irradiation of sunlight in the daytime can expand the outer bag body film, so that the buoyancy gas-blocking layer of the outer bag body film is damaged, and tiny gaps are generated, thereby increasing the leakage rate of the buoyancy gas. The excessive leakage rate of the buoyancy gas of the stratospheric airship can meet the long-term air stagnation requirement by carrying buoyancy gas in a plurality of zones when the stratospheric airship is lifted. In order to increase the dead time of stratospheric airships, more buoyancy gas needs to be carried, resulting in an increase in the pressure differential inside and outside the stratospheric airship at night. The higher the pressure difference between the inside and the outside of the basic yacht at night is, the higher the pressure difference between the inside and the outside of the yacht after the rising gas in the daytime yacht is heated and expanded is, and the higher the strength requirement of the stratospheric airship capsule material is. Secondly, the airship must discharge air into the atmosphere during the rising process of the stratospheric airship due to the variation of the atmospheric pressure at different heights of the atmosphere, so as to adjust the pressure difference between the inside and outside of the airship and the air quantity in the airship. The conventional airship has the problem that the air discharge amount of each auxiliary air bag is unequal when a plurality of air auxiliary air bags are arranged to discharge air, so that the phenomenon of unstable pitching posture of the stratospheric airship caused by unbalanced gravity center of the airship is easy to occur. In addition, when the outer airbag of the conventional airship is a helium airbag, solar radiation heat directly acts on the outer airbag body. The temperature change of helium in the airship is directly influenced after the outer bag body is heated, so that the pressure difference between the inside and the outside of the airship is changed.

Therefore, it is necessary to provide an airship capsule and a stratospheric airship so as to prevent leakage of buoyancy gas, ensure that the gravity center is not unbalanced in the ascending process of the airship, and control the change of the pressure difference between the inside and the outside of the airship to be small.

The above information disclosed in the background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The application mainly aims to solve the problems of leakage of buoyancy gas, unbalanced gravity center of an airship and large change of air pressure difference between the inside and the outside of the airship, and provides an airship capsule body and a stratospheric airship so as to prevent the leakage of buoyancy gas, ensure that the gravity center of the airship is not unbalanced and control the change of the air pressure difference between the inside and the outside of the airship to be small.

To achieve the above object, a first aspect of the present application provides an airship capsule, comprising: a main airbag and an auxiliary airbag; the auxiliary air bag is arranged in the main air bag; the main air bag stores air, and the auxiliary air bag stores buoyancy gas; the sum of the volumes of the auxiliary air bags is larger than the volume of the main air bag.

According to an exemplary embodiment of the present application, the sub-airbag is plural, and the plural sub-airbags are sequentially arranged along the axial direction of the main airbag.

According to an exemplary embodiment of the application, the sum of the volumes of the secondary airbag is greater than four to ten percent of the volume of the primary airbag.

According to an exemplary embodiment of the application, the top of the outer surface of the secondary airbag is fixedly connected with the top of the inner surface of the primary airbag and/or the bottom of the outer surface of the secondary airbag is fixedly connected with the bottom of the inner surface of the primary airbag.

According to an exemplary embodiment of the application, the airship capsule body further comprises a buoyancy gas inflation and deflation system arranged at the joint of the main air bag and the auxiliary air bag.

According to an example embodiment of the present application, the airship hull further includes an air inflation and deflation system provided on the main airbag, and if the buoyancy body inflation and deflation system is provided on an upper portion of the main airbag, the air inflation and deflation system is provided on a bottom portion of the main airbag; if the buoyancy lift gas inflation and deflation system is arranged at the lower part of the main air bag, the air inflation and deflation system is arranged at the top of the main air bag.

According to an exemplary embodiment of the present application, the balloon body of the ballonet sequentially comprises, from outside to inside: the third prevents ozone layer, second fibre enhancement layer, second membrane body material layer and prevents the gas leakage layer that floats.

According to an exemplary embodiment of the present application, the second fiber-reinforced layer is in the shape of a warp-weft-wise orthogonal fabric woven by fibers.

Preferably, the second fiber-reinforced layer is in the form of a mesh gauze.

According to an exemplary embodiment of the present application, the main airbag body sequentially includes, from outside to inside: the anti-radiation layer, the first anti-ozone layer, the first fiber reinforced layer, the first film body material layer, the gas barrier layer and the second anti-ozone layer.

According to an exemplary embodiment of the present application, the first fiber-reinforced layer is in the shape of a warp-weft-wise orthogonal fabric woven by fibers.

According to an example embodiment of the application, the buoyancy gas comprises hydrogen or helium.

Preferably, the buoyancy gas is helium.

As another aspect of the application, a stratospheric airship is provided, comprising the airship capsule.

The application has the advantages that the main air bag is used for loading air, the auxiliary air bag is used for loading buoyancy gas, and the sum of the volumes of the auxiliary air bags is larger than the volume of the main air bag. The auxiliary air bags can be preloaded with a certain amount of buoyancy gas, so that the leakage of buoyancy gas caused by a tiny gap of a buoyancy gas blocking layer under the action of tension after the main air bag is subjected to expansion force is prevented. The buoyancy gas is loaded in the auxiliary air bag, and solar radiation heat directly acts on the main air bag body in daytime. After the main air bag body is heated, the temperature change of the buoyancy gas in the airship can be influenced only by conduction of the auxiliary air bag body. Therefore, this structure can slow down the rise in temperature of the rising gas in the daytime stratospheric airship. Because the air in the main air bag is communicated with the whole airship, the gravity center change of the stratospheric airship is in a controllable range when the stratospheric airship lifts off to release the air in the main air bag body.

Drawings

The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are only some embodiments of the present application and other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 schematically shows a block diagram of an airship envelope.

Fig. 2 schematically shows a structural view of the sub-bag.

Fig. 3 schematically shows a structural view of the main airbag.

Fig. 4 schematically shows a block diagram of a fibre reinforced layer.

The device comprises a 1-buoyancy lift gas inflation and deflation system, a 2-auxiliary air bag, a 21-third ozone-proof layer, a 22-second fiber reinforced layer, a 23-second film material layer, a 24-buoyancy lift gas blocking layer, a 3-main air bag, a 31-radiation-proof layer, a 32-first ozone-proof layer, a 33-first fiber reinforced layer, a 34-first film material layer, a 35-gas blocking layer, a 36-second ozone-proof layer and a 4-air inflation and deflation system.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another element. Accordingly, a first component discussed below could be termed a second component without departing from the teachings of the present inventive concept. As used herein, the term "and/or" includes any one of the associated listed items and all combinations of one or more.

Those skilled in the art will appreciate that the drawings are schematic representations of example embodiments and that the modules or flows in the drawings are not necessarily required to practice the application and therefore should not be taken to limit the scope of the application.

According to a first embodiment of the application, the application provides an airship capsule body, as shown in fig. 1, comprising a main airbag 3, an auxiliary airbag 2, an ascending gas inflation and deflation system 1 and an air inflation and deflation system 4. The dashed lines of fig. 1 represent the axes of the airship hull and the primary airbag 3.

As shown in fig. 1, the sub-airbag 2 is disposed within the main airbag 3. The top of the outer surface of the secondary airbag 2 is fixedly connected with the top of the inner surface of the primary airbag 3 and/or the bottom of the outer surface of the secondary airbag 2 is fixedly connected with the bottom of the inner surface of the primary airbag 3. If the top of the outer surface of the sub-bag 2 is fixedly connected with the top of the inner surface of the main bag 3, it is preferable to connect the sub-bags 2 in a suspended manner in plural, the plural sub-bags 2 being arranged in order along the axial direction of the main bag 3. Preferably, the number of ballonets 2 is 6.

The main air bag 3 stores air, and the auxiliary air bag 2 stores buoyancy gas. The buoyancy gas comprises hydrogen, helium, preferably helium. The sum of the volumes of the sub-airbags 2 is larger than the volume of the main airbag 3, and the sum of the volumes of the buoyant gas in the stratospheric sub-airbags 2 is equal to or smaller than the volume of the main airbag 3 (the volume of air). The design that the sum of the volumes of the auxiliary air bags is larger than the volume of the main air bag from the aspect of material mechanics analysis aims to transfer the expansion tension generated by the heated expansion of the buoyancy gas in the boat from the auxiliary air bag 2 to the main air bag 3, and the main air bag 3 bears the tension. Because the sum of the volumes of the auxiliary air bags 2 is larger than the volume of the main air bag 3, the bag body material of the auxiliary air bag 2 is not stressed in theory, so that the tiny air gap of the anti-floating air layer is avoided. Thereby reducing the leakage rate of the buoyancy gas on the structural mechanism of the capsule material of the stratospheric airship. The sum of the volumes of the secondary airbags is greater than four to ten percent of the volume of the primary airbag, preferably the sum of the volumes of the secondary airbags is greater than five percent of the volume of the primary airbag.

As shown in fig. 2, the balloon body of the ballonet 2 sequentially comprises, from outside to inside: a third ozone-proof layer 21, a second fiber reinforced layer 22, a second film body material layer 23 and a buoyancy gas leakage-proof layer 24. As shown in fig. 4, the second fiber-reinforced layer 22 is in the shape of a woven fabric with orthogonal warp and weft directions, and preferably, the second fiber-reinforced layer 22 is in the shape of a gauze with orthogonal warp and weft directions woven with fibers. The second fibrous reinforcing layer 22 is reinforced with high strength fibers. The high strength fibers include vectran, PBO. The strength of the Vectran fiber is 5 to 6 times that of the steel wire with the same weight. A1 mm diameter PBO filament was used to suspend a weight of 450 kg. The strength is higher than that of the Vectran fiber, but the resistance to ozone and ultraviolet rays is lower than that of the Vectran fiber. In order to enhance the anti-floating gas rate, the strength of the balloon material and the ozone resistance of the ballonet, the anti-floating gas layer, the high-strength fiber reinforced layer and the ozone resistance layer are added on the balloon film material. Every two layers of structures are connected by high-strength glue.

As shown in fig. 3, the main airbag 3 includes, in order from outside to inside: a radiation protective layer 31, a first ozone protective layer 32, a first fiber reinforced layer 33, a first film body material layer 34, a gas barrier layer 35, and a second ozone protective layer 36. As shown in fig. 4, the first fiber-reinforced layer 33 is in a mesh shape, and preferably, the first fiber-reinforced layer 33 is in a dense woven fabric shape of warp and weft orthogonal yarns woven from fibers, and the first fiber-reinforced layer 33 is reinforced with high-strength fibers. Every two layers of structures are connected by high-strength glue.

As shown in fig. 1, the buoyancy gas charging and discharging system 1 is provided at the junction of the main airbag 3 and the sub airbag 2. The buoyancy gas charging and discharging system 1 comprises a buoyancy gas charging valve and a buoyancy gas discharging valve. An air charging and discharging system 4 is arranged on the main air bag 3. If the buoyancy gas charging and discharging system 1 is provided at the upper portion of the main airbag 3, the air charging and discharging system 4 is provided at the bottom of the main airbag 3 as shown in fig. 1. The air charge and discharge system 4 in fig. 1 is provided at the bottom of the main airbag 3. The air charging and discharging systems 4 are arranged in sequence along the axis direction of the airship at the bottom of the outer bag body. The air charge-discharge system 4 includes a charge air valve and a discharge air valve. If the buoyancy lift gas inflation and deflation system 1 is arranged at the lower part of the main airbag 3, the air inflation and deflation system 4 is arranged at the top of the main airbag 3, and the air inflation and deflation systems 4 are sequentially arranged at the top of the outer airbag 3 along the axis direction of the airship. Such a placement method is that the air charge-discharge system 4 is inverted with respect to the buoyancy gas charge-discharge system 1. When the airship is deflated, the upper part and the lower part of the airship generate the same moment, so that the unbalanced flying of the airship is prevented.

According to the scheme, the main airbag 3 is used for loading air, the auxiliary airbags 2 are used for loading buoyancy gas, a certain amount of buoyancy gas can be preloaded into each auxiliary airbag 2, and the situation that buoyancy gas leakage is caused by fine gaps caused by the fact that a buoyancy gas layer is resisted to be under tension after the main airbag 3 is subjected to expansion force is prevented. The buoyancy gas is loaded in the sub-airbag 2, and solar radiation directly acts on the main airbag 3 during daytime. After the main airbag 3 is heated, the temperature change of the buoyancy gas in the airship can be influenced by conduction through the auxiliary airbag 2. Thus, this configuration can slow down the rise in temperature of the rising gas, particularly helium, within the daytime stratospheric airship. Because the air in the main air bag 3 is communicated through the whole airship, the gravity center change of the stratospheric airship is in a controllable range when the stratospheric airship lifts off to release the air in the main air bag 3.

According to a second embodiment of the application, the present application provides a stratospheric airship comprising the airship capsule of the first embodiment.

The exemplary embodiments of the present application have been particularly shown and described above. It is to be understood that this application is not limited to the precise arrangements, instrumentalities and instrumentalities described herein; on the contrary, the application is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (10)

1. An airship capsule, comprising: a main airbag and an auxiliary airbag; the auxiliary air bag is arranged in the main air bag; the main air bag stores air, and the auxiliary air bag stores buoyancy gas; the sum of the volumes of the auxiliary air bags is larger than the volume of the main air bag.

2. The airship capsule according to claim 1, wherein the plurality of auxiliary airbags are arranged in sequence along the axial direction of the main airbag.

3. The airship capsule according to claim 1, wherein the sum of the ballonet volumes is greater than four to ten percent of the main ballonet volume.

4. Airship capsule according to claim 1, characterized in that the top of the outer surface of the secondary airbag is fixedly connected with the top of the inner surface of the primary airbag and/or the bottom of the outer surface of the secondary airbag is fixedly connected with the bottom of the inner surface of the primary airbag.

5. The airship capsule of claim 4, further comprising a buoyant gas inflation and deflation system disposed at the junction of the primary and secondary airbags.

6. The airship capsule of claim 5, further comprising an air inflation and deflation system disposed on the main airbag, the air inflation and deflation system being disposed at a bottom of the main airbag if the buoyancy body inflation and deflation system is disposed at an upper portion of the main airbag; if the buoyancy lift gas inflation and deflation system is arranged at the lower part of the main air bag, the air inflation and deflation system is arranged at the top of the main air bag.

7. The airship capsule according to claim 1, wherein the capsule of the ballonet comprises, in order from outside to inside: the third prevents ozone layer, second fibre enhancement layer, second membrane body material layer and prevents the gas leakage layer that floats.

8. The airship capsule according to claim 1, wherein the capsule of the main airbag comprises, in order from outside to inside: the anti-radiation layer, the first anti-ozone layer, the first fiber reinforced layer, the first film material layer, the gas barrier layer and the second anti-ozone layer.

9. The airship capsule according to claim 1, wherein the capsule second fiber-reinforced layer of the ballonet is in the form of a mesh gauze.

10. Stratospheric airship comprising an airship capsule according to any one of claims 1-9.