CN103587674B - The air bag of a kind of dirigible with shape controlling skeleton - Google Patents
The air bag of a kind of dirigible with shape controlling skeleton Download PDFInfo
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- CN103587674B CN103587674B CN201210286641.9A CN201210286641A CN103587674B CN 103587674 B CN103587674 B CN 103587674B CN 201210286641 A CN201210286641 A CN 201210286641A CN 103587674 B CN103587674 B CN 103587674B
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Abstract
The present invention's air bag of a kind of dirigible with shape controlling skeleton, comprises capsule skin (1) and shape controlling skeleton; The capsule skin (1) of airtight flexibility is positioned at air bag skin, is stacked structure on the whole, is made up of multiple laminate structure (4); Laminate structure (4) inside is all fixedly connected with shape controlling skeleton, and shape controlling skeleton includes the vertically arranged skeleton of taking down the exhibits of some pairs (2) and the two secondary shaped skeletons (3) hinged respectively with skeleton of taking down the exhibits (2) two ends; The capsule skin (1) of each laminate structure (4) is spliced by the airtight film face sheet (91) of some convex surface unit (9), described convex surface unit (9), except comprising an elongated airtight film face sheet (91), also comprises one to end limit mounting block (92) being positioned on shaped skeleton (3) and to the band of resistance to drag-line (93). The present invention can make full use of space in ship, expansion and shrinkage deformation regularity good stability strong, repeated abundant inflating expanded time can bear bigger superpressure.
Description
Technical field
The invention belongs to airship technology field, it is specifically related to the air bag of a kind of dirigible with shape controlling skeleton.
Background technology
Dirigible is a kind of aircraft being lighter than air, its basic functional principle relies on to fill that the lightweight such as hydrogen, helium is floating rises gas in self huge floatage body (being generally hull), make the mean density of dirigible entirety suitable with its ambient air density arranged, thus reach buoyant weight balance, it is achieved hover in the air. According to above-mentioned principle, for making dirigible have altitude mixture control ability, it is necessary to the net buoyancy of dirigible, namely total buoyancy and the difference of deadweight, adjust. Complete this target without there being two kinds of basic modes outward: one is change dirigible profile, and the discharge capacity of control floatage body is to adjust total buoyancy; Two is by certain technique means, changes dirigible deadweight. Major part dirigible of the prior art has fixing construction profile, when ignoring elasticity and be out of shape, it will be recognized that the total flow rate of dirigible remains unchanged. For this kind of dirigible, it is achieved main dependence the 2nd kind of method that net buoyancy regulates, by sucking or exhausted air, change dirigible deadweight. For this reason, dirigible internal space is divided into two portions with airtight film usually, special respectively floating rises gas and air in depositing, to avoid gas to mix. Each gas space can Further Division be some air bags or air chamber again.
The floating gaseous mass that rises entrained by dirigible is fixing, and environment atmospheric pressure constantly changes with flight height, and what this made in ship floating rise the space occupied by gas and air and change accordingly. Dirigible rises, in decline process, runs design maximum height value more big, and floating to rise the volume change that gas flies in high scope at it more big. For helium dirigible, if extreme flight height is 4km, then in ship helium volume account for dirigible cumulative volume per-cent will change between 50%��100%, volume of air accounting then covers the scope of 0��50%. For higher design across height, the variation range that actuates of air bag volume also can be higher.
In dirigible of the prior art, air bag adopts flexible thin-film material to build, and only when, film material both sides completely full by gas form certain pressure reduction, just can be fully extended tensioning and form comparatively stable configuration. The thin-film material elasticity adopted due to air bag is limited, therefore can only design according to its maximum expansion volume in engineering. Still for extreme flight height as the dirigible of 4km, namely air bag needs 50% Design and Machining according to cumulative volume. This means within the most of the time, and in dirigible, air bag is in incomplete full state, when airship's posture tilts or rotates, appearance is significantly rocked, is reversed by interior air bag, cause dirigible center of gravity to alter, affect the stability of attitude, even make dirigible face the danger toppled.
For strengthening the shape determinacy of air bag in dirigible, the U.S. discloses a kind of antifungal gene air bag, its principle is that the film adopted has bigger shrinkability, capsule body can be made still to keep overall tensioning under inflation vacant state, its weak point needs to adopt special film material and complicated technique, and air bag is still flexible body structure, and shape stability is limited. Document is also had to disclose a kind of associated airbag capsule body structure, the film wall that this air bag is positioned at hull is provided with the crease of one group of square crossing, capsule body top after inflation can be formed the groove of a cruciform, thereby increase the tension force of air bag body top-film wall, form the projection of four arrangements in matrix pattern, relative to the free end face of conventional balloon, this kind is more stable with the end face form of projection, air bag by little to the metamorphosis in big stretching process close to a stretching process with the cylinder of above-mentioned end face; The air bag of which is also still flexible body, although the form of its end face obtains certain control, but side is still comparatively lax, and air bag entirety still may tilt or reverse. Comprehensive open source literature at present, in dirigible of the prior art, air bag is due to the essence of its pure flexible body, has the shortcoming that shape controlling ability is on the weak side, has the demand of improvement further.
Further, regulate and pressure regulating power for improving the dead weight of dirigible, wish that airship envelope has the ability bearing higher gas superpressure, rise gas make-up spill losses, the more artificial atmosphere weight of accommodation to hold more floating, and bear safely more gas heating. prior art provides the scheme of some high-pressure gasbags, such as: a kind of high-pressure gasbag scheme adopting multi-stage type, i.e. " in capsule capsule " scheme, supercharging for helium stores, its weak point comprises system complex, and deadweight is relatively big, the problems such as inner bladder heat radiation is not smooth. a kind of stratosphere Pressure-proof balloon scheme, its capsule body is pumpkin shape, it is made up of the gores of projection between many high strength force-supporting belts and force-supporting belt, the projection of gores reduces the ring of film wall to radius-of-curvature, equal this radius-of-curvature to amass with film inwall external differential is owing to film internal tension is approximate, this tension force just making film wall bear significantly reduces such that it is able to the light membrane material selecting intensity relatively low, reduces the weight of balloon, its weak point is that this capsule body is that a kind of gas holds cable-membrane analysis in essence, and this structure is still a kind of flexible body on the one hand, and stability is limited, and existing practical experience all shows it and " the distortion distortion of S shape " phenomenon easily occurs, on the other hand, the shape that the capsule body that this structure is formed can only be circumferentially symmetrical, if using as inner balloon, generally is difficult to find the layout in space in the ship that can make full use of and distribute, and thus causes bigger space waste. Aeros company of the U.S. has carried out a kind of low-altitude airship dead weight Controlling System test stored based on helium compression, the high-pressure gasbag adopted is tire shape, its weak point is, the surface-area of tire shape capsule body and the bigger of volume, this gaseous mass that per unit mass capsule body is on average loaded is on the low side, the gas volume held to improve, bigger air pressure can only be taked, if the compressed helium pressure in tire shape air bag in above-mentioned case is up to several normal atmosphere, on the one hand the safety of structure of capsule body is caused relatively test, on the other hand for running the high-altitude dirigible in thin atmospheric environment, this rate of supercharging is too high, the difficulty that plant engineering of calming the anger realizes is very big.
In sum, various deficiency is there is in high-pressure gasbag of the prior art as the use of dirigible buoyancy adjustment air bag, the demand having improvement further, needs the high-pressure gasbag scheme that a kind of space utilizing status is good, gas volume is big, rate of supercharging is moderate, load-carrying efficiency height, inside and outside level are few badly.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that a kind of can make full use of space in ship, expansion and shrinkage deformation is regular strong, repeatability is good, inflation less than time have good stability, abundant inflating expanded time can bear the air bag with shape controlling skeleton of a kind of dirigible of bigger superpressure.
In order to realize above-mentioned purpose, the technical scheme of the present invention is, the air bag of a kind of dirigible with shape controlling skeleton comprises capsule skin and shape controlling skeleton; Wherein, the capsule skin of airtight flexibility is positioned at air bag skin, is stacked structure on the whole, is made up of multiple laminate structure; Every shape inside configuration layer by layer is all fixedly connected with shape controlling skeleton, and the shape controlling skeleton of every layer of laminate structure includes vertically arranged skeleton and the two secondary shaped skeletons hinged respectively with skeleton two ends of taking down the exhibits of taking down the exhibits of some pairs; On capsule skin inside, the top shaped skeleton of end face and top layer laminate structure is fixed, and in capsule skin, the bottom shaped skeleton of subordinate's end face and substrate laminate is fixed, and assembling position meets capsule skin and shaped skeleton at the relative position relation of air bag when fully expanding; Each laminate structure is along the direction from bottom surface to end face successively assembled in series, and a front laminate structure is connected each other near shaped skeleton and the shaped skeleton of later layer shape structure near air bag bottom surface of air bag end face.
Described shape controlling skeleton, according to track form of taking down the exhibits, forms straight line respectively and launches skeleton and rotary expansion skeleton two type; Wherein, straight line launches skeleton and is arranged in the laminate structure in the middle part of airship, the parallel setting of its shaped skeleton; Rotary expansion skeleton is arranged in the laminate structure of airship head and afterbody, and its shaped skeleton one end is hinged.
By taking down the exhibits, drive unit carries out observing and controlling in the motion of described skeleton of taking down the exhibits, and drive unit of taking down the exhibits comprises drive-motor and guide rail screw drive mechanism; Guide rail screw drive mechanism comprises screw mechanism and limitation travel switch, the self-locking performance that screw mechanism is intrinsic, ensures that whole shell system in office instantaneous has good rigidity; When skeleton of taking down the exhibits drives shaped skeleton to reach design maximum height, it is out of service that limitation travel switch triggers drive-motor; Drive unit of taking down the exhibits regulates and controls according to the position transducer measuring result of capsule inside and outside differential pressure sensor and skeleton of taking down the exhibits.
It is equipped with protection drag-line between described adjacent shaped skeleton.
The capsule skin of described each laminate structure is spliced by the airtight film face sheet of some convex surface lists, and described convex surface unit, except comprising an elongated airtight film face sheet, also comprises one to the end limit mounting block and being positioned on qualitative skeleton to the band of resistance to drag-line; Wherein, being melon lobe shape when described airtight film face sheet is fully launched, on curved surface, the principal radius of curvature of each point is equal everywhere; Airtight film face sheet has four limits, comprises two short end limits and two long sides; Adjacent convex surface unit shares the same bar band of resistance to drag-line in side edge junction each other, the band of resistance to drag-line assembles along the long side of airtight film face sheet, the two ends of the band of resistance to drag-line are assemblied on the mounting block of end limit, end limit mounting block is bonded and fixed on shaped skeleton, the melon lobe shape surface geometry parameter processing when bonding plane geometrical shape of shaped skeleton is fully launched according to airtight film face sheet.
Described convex surface unit is divided into circular envelope unit and parallel envelope unit two kinds, and two long sides of the airtight film face sheet of circular envelope unit are rotationally symmetrical relation, and its extended line exists two symmetrical intersection points; The airtight film face sheet of parallel envelope unit is the parallel melon lobe shape curved surface of two long sides, and arc section subtended angle corresponding to the curve that intercepts in normal section of parallel envelope unit is constant; The convex surface unit spliced adopting circular envelope unit form together after, the circular arc face portion of its circular envelope bluff bit composition capsule skin; The convex surface unit spliced adopting parallel envelope unit form together after, the parallel surface part of its parallel envelope bluff bit composition capsule skin.
The size of the described band of resistance to drag-line meets following requirement: the airtight film face sheet external envelope radius of convex surface unit is r, and ring is r to radius-of-curvatureC, the radius after the band of resistance to drag-line full extension is rL, then r > rL> r-rC��
Described airtight film face sheet adopts three-dimensional cutting mode to manufacture, the curved surface area that its film bulk area is greater than two short end limits and two long sides surround, under abundant expansion state airtight film face sheet between the band of resistance to drag-line of both sides outwardly, form a convex surface.
The present invention has following useful effect:
(1) can be good at adapting to distributing to the shape in space in the ship of air bag, process of taking down the exhibits controllability is strong, and the bladder shape after expansion has good space availability ratio. Air bag with shape controlling skeleton proposed by the invention, has connecting method flexibly, it is possible to space envelope in ship of fitting better, it is to increase space availability ratio in ship. On the one hand, air bag adopts stacked structure, and each stratiform unit can be set to " straight line expansion " or " rotary expansion " mode as required, can obtain required distortion track of taking down the exhibits by splicing. Take down the exhibits mechanism to the constraint of skeleton motion track by rigidity so that the contracting of taking down the exhibits of air bag entirety puts deformation rule repeatability by force, and controllability also improves thereupon, is conducive to improving the control stability of dirigible. For the air bag of full expansion, the capsule skin of its stratiform unit adopts many groups " arc envelope face sheet " and " parallel envelope face sheet " two kinds of face sheet, can obtain required enveloping surface shape by splicing. The splicing handiness of summary two aspect, it is possible to while ensureing voltage endurance capability, it is achieved good space availability ratio.
(2) bladder shape is stablized, and its overall shape looks overcharge gas without the need to relying on and maintained. Airship envelope of the prior art is a class inflation flexible body in essence. This kind of air bag relies on and overcharges gas, the pressure reduction making the inside and outside formation of capsule certain, thus makes capsule film tensioning, forms certain shape. The shape that this kind of mode obtains is unstable: on the one hand, owing to air bag is overall flexibility structure, therefore its Nang Bi defines the flexible region in flakes of big area, and the free distortion amount of capsule wall shape is big; On the other hand, for avoiding too much aeration quantity on the impact of dirigible useful load amount and maneuvering characteristics, the rate that overcharges of air bag can not be too big, thus its tension force formed and the stabilizing power of bladder shape is limited, when dirigible inclination or twirl, it is easy to occur rocking significantly, reversing, altering of dirigible center of gravity will be caused, seriously affect attitude stability, even make dirigible face the danger toppled. Adopt the air bag with shape controlling skeleton proposed by the invention, the rigidity intrinsic by shape controlling skeleton and structural stability effect of contraction, the shape making whole air bag being stablized, the capsule body that scale is more big, the effect that employing shaped skeleton carries out dimensionally stable is more remarkable; The effect of contraction at each capsule section side walls edge is made on capsule body sidewall flexible region area in flakes be no more than the area of single segment body side walls by shaped skeleton, and this just controls the free variable quantity of shape of sidewall, enhances the shape stability of capsule body. When air bag is in half full state, by controlling the amount of expansion of shaped skeleton, it is possible to when without the need to overcharging gas, still form enough capsule inside and outside differential pressures, make capsule film tensioning, obtain comparatively stable form.
(3) resistance to superpressure work capacity is achieved with light-weighted structure. Compared with conventional balloon, under identical atmosphere storage amount and superpressure pressure reduction, what the present invention proposed significantly reduces to radius-of-curvature with the ring of the capsule skin of melon lobe shape convex surface structure, the tension force that film bears is corresponding reduction also, this reduces the requirement of strength to film, such that it is able to adopt the film of more lightweight, effectively reduce deadweight. Compared with multi-stage type of the prior art " in capsule capsule " structure, for realizing identical rate of supercharging, level quantity required for adopting the high-pressure gasbag of the present invention's proposition significantly reduces, generally, only need single stage air bag can reach required buoyancy and pressure regulating power, make that the complicacy of air bag system reduces, reliability improve, and reduce the deadweight of gas-bag system, improve thermal control performance. Compared with the high-pressure gasbag without shaped skeleton of the prior art, this air bag can be made into bigger volume and still can keep sufficient integral rigidity, it is to increase the stability of dirigible. By the control action kou of the styling of shaped skeleton and drawing rope, also help enhancing shape stability, reduce the probability of occurrence of distortion distortion.
Accompanying drawing explanation
Fig. 1 is the side cutaway view of the air bag of a kind of dirigible with shape controlling skeleton under abundant expansion state.
Fig. 2 is the front view of the air bag of a kind of dirigible with shape controlling skeleton under abundant expansion state.
Fig. 3 is the vertical view of the air bag of a kind of dirigible with shape controlling skeleton under abundant expansion state.
Fig. 4 is that the air bag with shape controlling skeleton is to the useful effect schematic diagram of balloon shapes Stability Control
Fig. 5 is circular envelope unit schematic diagram.
Fig. 6 is parallel envelope unit schematic diagram.
Fig. 7 is Euler's elastic curve bus schematic diagram of airtight film face sheet.
In figure, 1-capsule skin, 2-takes down the exhibits skeleton, 3-shaped skeleton, 4-laminate structure, 5-straight line launches skeleton, 6-rotary expansion skeleton, 7-drive-motor, 8-guide rail screw drive mechanism, 9-convex surface unit, 91-airtight film face sheet, 911-short end limit, 912-long side, 92-end limit mounting block, the 93-band of resistance to drag-line, 10-protects drag-line, 11-parallel surface part, 12-inlet mouth, 13-is common floating rises air bag, 14-connects air flue, the 15-air bag of resistance to superpressure, 16-pneumatic plant, 17-outer covering, 18-scatterer, 19-valve, the conventional flexible air somatocyst of 20-, 21-circular arc face portion.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
The air bag of dirigible with shape controlling skeleton, comprises capsule skin 1 and shape controlling skeleton as shown in Figures 1 to 3; Wherein, the capsule skin 1 of airtight flexibility is positioned at air bag skin, is stacked structure on the whole, is made up of multiple laminate structure 4; Capsule skin 1 inside of every layer of laminate structure 4 is all fixedly connected with shape controlling skeleton, and the shape controlling skeleton of every layer of laminate structure 4 includes vertically arranged skeleton 2 and the two secondary shaped skeletons 3 hinged respectively with skeleton 2 two ends of taking down the exhibits of taking down the exhibits of some pairs; The top shaped skeleton 3 of the upper end face in capsule skin 1 inside and top layer laminate structure 4 is fixed, in capsule skin 1, the bottom shaped skeleton 3 of subordinate's end face and substrate laminate 4 is fixed, and assembling position meets capsule skin 1 and shaped skeleton 3 at the relative position relation of air bag when fully expanding; Each laminate structure 4 is along the direction from bottom surface to end face successively assembled in series, and a front laminate structure 4 is connected with the shaped skeleton 3 of later layer shape structure near air bag bottom surface each other near the shaped skeleton 3 of air bag end face; Under the effect of contraction of shaped skeleton 3, the random deformation amount of capsule skin 1 will be limited in acceptable degree all the time, such that it is able to make the shape of whole air bag in conventional flexible air somatocyst 20, though when inflate less than still can effectively be stablized, as shown in Figure 4.
Described shape controlling skeleton, according to track form of taking down the exhibits, forms straight line respectively and launches skeleton 5 and rotary expansion skeleton 6 liang of types, as shown in Figure 4; Wherein, straight line launches skeleton 5 and is arranged in the laminate structure 4 in the middle part of airship, the parallel setting of shaped skeleton 3 of laminate structure 4, and under the drive of skeleton 2 of taking down the exhibits, straight line launches skeleton 5 will produce straight line displacement; Rotary expansion skeleton 6 is arranged in the laminate structure 4 of airship head and afterbody, and shaped skeleton 3 one end of laminate structure 4 is hinged, and under the drive of skeleton of taking down the exhibits, rotary expansion skeleton 6 produces the rotation displacement around fixed axis. Two kinds of shape controlling skeletons only have a degree of freedom on the whole, can only complete, according to specific deformation rule, change of taking down the exhibits; Utilize the combined and spliced of two kinds of shape controlling skeletons, can obtain adapting to the track of taking down the exhibits of spatial form in ship.
By taking down the exhibits, drive unit carries out observing and controlling in the motion of described skeleton 2 of taking down the exhibits, drive unit of taking down the exhibits comprises drive-motor 7 and guide rail screw drive mechanism 8, guide rail screw drive mechanism 8 comprises screw mechanism and limitation travel switch, the self-locking performance that screw mechanism is intrinsic, ensures that whole shell system in office instantaneous has good rigidity; Drive unit of taking down the exhibits regulates and controls according to the position transducer measuring result of capsule inside and outside differential pressure sensor and skeleton 2 of taking down the exhibits; When air bag is in complete contraction schedule, whole shell system is in folded state, is accommodated in bottom dirigible; Along with the expansion of air bag, shaped skeleton 3 lifting gradually on upper strata, until arriving predetermined maximum height; When skeleton 2 of taking down the exhibits drives shaped skeleton 3 to reach maximum height, screw drive mechanism 8 triggers the position of limitation travel switch by arriving, and makes drive-motor 7 out of service, and skeleton 2 of taking down the exhibits stops stretching; If hereafter continuing inflation, air bag will work in superpressure state, and the spacing of laminate structure 4 remains at its design maximum spacing and the fixing profile of maintenance.
The protection drag-line 10 of high strength it is equipped with between described adjacent shaped skeleton 3; When skeleton 2 of taking down the exhibits reaches design maximum expansion height, protection drag-line 10, by tensioning, shares the pulling force that in capsule, skeleton 2 of taking down the exhibits is caused by gas tension by shaped skeleton 3.
The capsule skin 1 of described each laminate structure 4 is spliced by the airtight film face sheet 91 of some convex surface unit 9, described convex surface unit 9, except comprising an elongated airtight film face sheet 91, also comprises one to the end limit mounting block 92 being positioned on shaped skeleton 3 and to the band of resistance to drag-line 93; Wherein, being melon lobe shape when described airtight film face sheet 91 is fully launched, on curved surface, the principal radius of curvature of each point is equal everywhere; Airtight film face sheet 91 has four limits, comprises two short end limits 911 and two long sides 912; Adjacent convex surface unit 9 shares the same bar band of resistance to drag-line 93 in side edge junction each other, the band of resistance to drag-line 93 assembles along the long side 912 of airtight film face sheet 91, the two ends of the band of resistance to drag-line 93 are assemblied on end limit mounting block 92, end limit mounting block 92 is bonded and fixed on shaped skeleton 3, melon lobe shape surface geometry parameter processing when the bonding plane geometrical shape of shaped skeleton 3 is fully launched according to airtight film face sheet 91, such that it is able to provide level and smooth transition and good force-transfer characteristic. Melon lobe shape convex surface is the important factor ensureing that air bag can bear High Pressure Difference intensity. According to mechanics principle, the tension force of film material is directly proportional to its radius-of-curvature, the radius-of-curvature that melon lobe shape curved surface is less can significantly reduce the tension force that film material bears, and makes air bag can bear bigger pressure reduction and unlikely be subject to structure deteriorate, thus realizes the high-voltage resistance capability of air bag. When air bag expands completely under high pressure effect, the film body tension force of airtight film face sheet 91 acts on the band of resistance to drag-line 93, the long side 912 of the band of resistance to drag-line 93 and airtight film face sheet 91 is tightened and forms certain convex curve; When air bag be in completely expansion expansion state time, the protected drag-line 10 of shaped skeleton about 3 both ends of the surface spacing of laminate structure 4 is limited to its maximum extension distance, now holds the relative position relation of limit mounting block 92 also to be fixed.
Described convex surface unit 9 is divided into circular envelope unit and parallel envelope unit two kinds, and two long sides 912 of the airtight film face sheet 91 of circular envelope unit are in rotationally symmetrical relation, and its extended line exists two symmetrical intersection points; The airtight film face sheet 91 of parallel envelope unit is the parallel melon lobe shape curved surface of two long sides 912, and arc section subtended angle corresponding to the curve that intercepts in normal section of parallel envelope unit is constant. For making full use of space in the ship at air bag laminate structure place, it is combined and spliced that convex surface unit 9 can select 2 types to carry out, as shown in Figure 3. After adopting the convex surface unit 9 of circular envelope unit form to be stitched together, the circular arc face portion 21 of its circular envelope bluff bit composition capsule skin 1; After adopting the convex surface unit 9 of parallel envelope unit form to be stitched together, the parallel surface part 11 of its parallel envelope bluff bit composition capsule skin 1; Utilize the melon lobe shape convex surface of above two types, it is possible to according to the locational space residing for capsule body, approached by convex polygon, splice suitable envelope shape.
Installation position according to air bag, the feature that in its ship residing after launching, spatial dimension is narrow before having width wide at the top and narrow at the bottom, rear. The shape of shape controlling skeleton designs accordingly, for Fig. 3, according to narrow front wide storage area spatial form thereafter, can approach by " platform " font relatively long side that trapezoidal and rectangle is spliced. Correspondingly, the shape of shaped skeleton is also set to " platform " font relatively long side, comprises six straight flanges and six fixed points, respectively the circular envelope unit of assembling and parallel envelope unit. The shape of shaped skeleton 3 and length and width size also to be met the restriction of reception position when air bag tightens up. In this example, the size after folding can be accommodated in space comparatively narrow bottom dirigible by whole skeleton. For the configuration of laminate structure, it is necessary to spatial form in ship simultaneously, and meet the Euler's elastic curve shape in Fig. 7. According to the feature that space in distributed ship is wide at the top and narrow at the bottom, high-pressure gasbag can adopt two interval bodies, and the width of the segment body on upper strata is relatively big, and the width of lower floor's segment body is less, and the two same length. Adopt above connecting method, it is possible to space envelope in ship of fitting better, it is to increase space availability ratio in ship.
The above-mentioned air bag with shape controlling skeleton is resistance to is the air bag of resistance to superpressure 15, is provided with inlet mouth 12 bottom it, inlet mouth 12 with above common floating rise to be provided with between air bag 13 be connected air flue 14; Pneumatic plant 16 also it is provided with, in order to the common floating gas risen in air bag 13 is filled with the air bag of resistance to superpressure 15 in the lower section of the air bag of resistance to superpressure 15; Pneumatic plant 16 and connect air flue 14 and fit outer covering 17 bottom dirigible, and in bonding position, arrange one group of scatterer 18 in ship abdomen both sides, for the heat dissipation that gas compression produced to, outside ship, avoiding the temperature, pressure affecting gas in ship. The top of the air bag of resistance to superpressure 15 is furnished with valve 19, and when valve 19 is opened, in capsule, gas will be released into common floating rise in air bag 13.
The size of the described band of resistance to drag-line 93 meets following requirement: the airtight film face sheet 91 external envelope radius of convex surface unit 9 is r, and ring is r to radius-of-curvatureC, the radius after the band of resistance to drag-line 93 full extension is rL, then r > rL> r-rC��
Described airtight film face sheet 91 adopts three-dimensional cutting mode to manufacture, the curved surface area that its film bulk area is greater than two short end limits 911 and two long sides 912 surround, under abundant expansion state between the band of resistance to drag-line 93 of airtight film face sheet 91 in both sides outwardly, a convex surface is formed.
Above to embodiments of the invention to being explained in detail, above-mentioned enforcement mode is only the optimum embodiment of the present invention, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make various change under the prerequisite not departing from objective of the present invention.
Claims (6)
1. the air bag of dirigible with shape controlling skeleton, it is characterised in that comprise capsule skin (1) and shape controlling skeleton; Wherein, the capsule skin (1) of airtight flexibility is positioned at air bag skin, is stacked structure on the whole, is made up of multiple laminate structure (4); Every layer of laminate structure (4) inside is all fixedly connected with shape controlling skeleton, and the shape controlling skeleton of every layer of laminate structure (4) includes the vertically arranged skeleton of taking down the exhibits of some pairs (2) and the two secondary shaped skeletons (3) hinged respectively with skeleton of taking down the exhibits (2) two ends; On capsule skin (1) inside, the top shaped skeleton (3) of end face and top layer laminate structure (4) is fixed, the bottom shaped skeleton (3) of the interior subordinate's end face of capsule skin (1) and substrate laminate (4) is fixed, and assembling position meets capsule skin (1) and shaped skeleton (3) at the relative position relation of air bag when fully expansion; Each laminate structure (4) is along the direction from bottom surface to end face successively assembled in series, and a front laminate structure (4) is connected with the shaped skeleton (3) of later layer shape structure near air bag bottom surface each other near the shaped skeleton (3) of air bag end face; Shape controlling skeleton, according to track form of taking down the exhibits, forms straight line respectively and launches skeleton (5) and rotary expansion skeleton (6) two type; Wherein, straight line launches skeleton (5) and is arranged in the laminate structure in the middle part of airship (4), its shaped skeleton (3) parallel setting; Rotary expansion skeleton (6) is arranged in the laminate structure (4) of airship head and afterbody, and its shaped skeleton (3) one end is hinged; Taking down the exhibits, drive unit carries out observing and controlling by taking down the exhibits for the motion of skeleton (2), and drive unit of taking down the exhibits comprises drive-motor (7) and guide rail screw drive mechanism (8); Guide rail screw drive mechanism (8) comprises screw mechanism and limitation travel switch, the self-locking performance that screw mechanism is intrinsic, ensures that whole shell system in office instantaneous has good rigidity; When skeleton of taking down the exhibits (2) drives shaped skeleton (3) to reach design maximum height, it is out of service that limitation travel switch triggers drive-motor (7); Drive unit of taking down the exhibits regulates and controls according to the position transducer measuring result of capsule inside and outside differential pressure sensor and skeleton (2) of taking down the exhibits.
2. the air bag of a kind of dirigible with shape controlling skeleton as claimed in claim 1, it is characterised in that be equipped with protection drag-line (10) between adjacent shaped skeleton (3).
3. the air bag of a kind of dirigible with shape controlling skeleton as claimed in claim 1, it is characterized in that the capsule skin (1) of each laminate structure (4) is spliced by the airtight film face sheet (91) of some convex surface unit (9), described convex surface unit (9), except comprising an elongated airtight film face sheet (91), also comprises one to end limit mounting block (92) being positioned on shaped skeleton (3) and to the band of resistance to drag-line (93); Wherein, being melon lobe shape when described airtight film face sheet (91) is fully launched, on curved surface, the principal radius of curvature of each point is equal everywhere; Airtight film face sheet (91) has four limits, comprises two short end limits (911) and two long sides (912); Adjacent convex surface unit (9) shares the same bar band of resistance to drag-line (93) in side edge junction each other, the band of resistance to drag-line (93) assembles along the long side (912) of airtight film face sheet (91), the two ends of the band of resistance to drag-line (93) are assemblied on end limit mounting block (92), end limit mounting block (92) is bonded and fixed on shaped skeleton (3), the melon lobe shape surface geometry parameter processing when bonding plane geometrical shape of shaped skeleton (3) is fully launched according to airtight film face sheet (91).
4. the air bag of a kind of dirigible with shape controlling skeleton as claimed in claim 3, it is characterized in that convex surface unit (9) is divided into circular envelope unit and parallel envelope unit two kinds, two long sides (912) of the airtight film face sheet (91) of circular envelope unit are in rotationally symmetrical relation, and its extended line exists two symmetrical intersection points; The airtight film face sheet (91) of parallel envelope unit is the melon lobe shape curved surface that two long sides (912) are parallel, and arc section subtended angle corresponding to the curve that intercepts in normal section of parallel envelope unit is constant; After adopting the convex surface unit (9) of circular envelope unit form to be stitched together, the circular arc face portion (21) of its circular envelope bluff bit composition capsule skin (1); After adopting the convex surface unit (9) of parallel envelope unit form to be stitched together, the parallel surface part (11) of its parallel envelope bluff bit composition capsule skin (1).
5. the air bag of a kind of dirigible with shape controlling skeleton as claimed in claim 3, it is characterized in that the size of the band of resistance to drag-line (93) meets following requirement: airtight film face sheet (91) the external envelope radius of convex surface unit (9) is r, and ring is r to radius-of-curvatureC, the radius after the band of resistance to drag-line (93) full extension is rL, then r > rL> r-rC��
6. the air bag of a kind of dirigible with shape controlling skeleton as claimed in claim 3, it is characterized in that airtight film face sheet (91) adopts three-dimensional cutting mode to manufacture, the curved surface area that its film bulk area is greater than two short end limits (911) and two long sides (912) surround, under abundant expansion state airtight film face sheet (91) between the band of resistance to drag-line (93) of both sides outwardly, form a convex surface.
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| CN201210286641.9A CN103587674B (en) | 2012-08-13 | 2012-08-13 | The air bag of a kind of dirigible with shape controlling skeleton |
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| CN111846191A (en) * | 2020-07-27 | 2020-10-30 | 重庆交通大学 | Combined power airship |
| CN111994268B (en) * | 2020-08-20 | 2022-04-01 | 武汉大学 | Low-power consumption unmanned vehicles based on developments are glided |
| CN114348232B (en) * | 2021-12-02 | 2024-03-19 | 北京电子工程总体研究所 | Pressure regulating method for aerostat |
| CN114592511B (en) * | 2022-03-11 | 2024-02-20 | 深圳市工勘岩土集团有限公司 | Elastic partition structure for free section and anchoring section |
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| CN201367113Y (en) * | 2008-10-29 | 2009-12-23 | 郭颀 | Lifting and floating integrated semirigid airship |
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