CN111186555A - Method for designing and implementing overpressure balloon of sliding rope reinforced structure - Google Patents
Method for designing and implementing overpressure balloon of sliding rope reinforced structure Download PDFInfo
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- CN111186555A CN111186555A CN202010001365.1A CN202010001365A CN111186555A CN 111186555 A CN111186555 A CN 111186555A CN 202010001365 A CN202010001365 A CN 202010001365A CN 111186555 A CN111186555 A CN 111186555A
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- overpressure
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000004904 shortening Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 239000002775 capsule Substances 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000000832 Ayote Nutrition 0.000 description 1
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 235000009804 Cucurbita pepo subsp pepo Nutrition 0.000 description 1
- 229920000508 Vectran Polymers 0.000 description 1
- 239000004979 Vectran Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 235000015136 pumpkin Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64B—LIGHTER-THAN AIR AIRCRAFT
- B64B1/00—Lighter-than-air aircraft
- B64B1/40—Balloons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ropes Or Cables (AREA)
Abstract
A method of implementing a slickline reinforced structural superpressure balloon design, the superpressure balloon comprising: balloon utricule, slip rope, utricule fold and flange, wherein: the connecting flange sets up tip about the balloon utricule, and the slip rope both ends link to each other and evenly vertically set up on the balloon utricule with the connecting flange, and the utricule fold sets up on the balloon utricule. The sliding rope in a form of sliding relative to the capsule body is adopted to replace a reinforcing rib in the prior art, the change of the spherical shape can be controlled in a mode of applying pretightening force to the rope at the end part of the capsule body, and the corresponding optimal design spherical shape can be found more conveniently; the radial tightening amount of the rope at the equatorial section is taken as a design variable, so that the adjusted overpressure balloon has ideal pressure resistance and more uniform stress distribution on the balloon body.
Description
Technical Field
The invention relates to a technology in the field of high-altitude detection, in particular to a method for designing and realizing a sliding rope reinforced structure overpressure balloon.
Background
As a high-altitude scientific balloon, the pressure bearing capacity of a closed structure of the overpressure balloon directly influences the capacity of the overpressure balloon for resisting external environment changes, and the two ways of improving the pressure bearing capacity of the overpressure balloon are respectively as follows: 1. forming a pumpkin-shaped capsule body by a process; 2. and (3) arranging reinforcing ribs on the surface of the capsule, wherein the second mode can be applied to the first structure. The strain difference value of the reinforcing ribs and the membrane surface obviously changes along with the change of the height position, and the traditional rib and membrane fixing mode is not beneficial to the load homogenization transmission between rib and membrane.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for designing and realizing a overpressure balloon with a sliding cable reinforced structure, which adopts a rope sliding relative to a balloon body to replace a reinforcing rib, controls the shrinkage of the sliding rope through a nut on a flange plate at the end part of the balloon body and a hollow lead screw structure, forms a bulge with a corresponding degree on the surface of the balloon body, adjusts the length of the rope through the flange plate and controls the appearance of the bulge to adjust the overpressure balloon, so that the adjusted overpressure balloon has ideal pressure resistance and the stress distribution on the balloon body is more uniform.
The invention is realized by the following technical scheme:
the invention relates to a superpressure balloon with a strop reinforcing structure, which comprises: balloon utricule, slip rope, utricule fold and flange, wherein: the connecting flange sets up tip about the balloon utricule, and the slip rope both ends link to each other and evenly vertically set up on the balloon utricule with the connecting flange, and the length of accessible utricule tip flange control rope controls the utricule surface and generates the swell, forms similar pumpkin balloon appearance, and this structure has higher bearing capacity.
The balloon body comprises: single width cloth strip and connecting band, wherein: the single cloth strip is longitudinally and uniformly arranged to be of a sphere structure, the connecting belt is arranged at the joint of the single cloth strip, and the sliding rope is arranged on the connecting belt.
The connecting band is provided with a coating for reducing friction.
When the sliding rope is tightened, local folds are formed on the surface of the balloon body and at the contact part of the rope, the longitudinal length of the balloon body is the minimum, a corresponding small bulge is formed, and the appearance and the size of the bulge are directly influenced by different heights of nuts at the end part of the balloon body.
The flange includes: hollow lead screw, nut, rib, solid fixed ring and chassis, wherein: the hollow screw rod is arranged in the center of the chassis and is integrally cast, the nut is arranged on the hollow screw rod and is movably connected with the hollow screw rod, and the fixing ring is connected with the nut through a rib and is connected with the sliding rope.
The middle of the base plate is provided with a groove structure.
The chassis on be equipped with and be used for with slip rope matched with trompil and slip recess, wherein: the trompil evenly sets up in the a week around the chassis center, and the trompil sets up in sliding groove both sides.
The invention relates to the overpressure balloon and an optimization method thereof, wherein a plurality of arc-shaped bulges are formed by taking the radial shortening of a sliding rope on an equatorial plane as a design parameter; the length of the sliding rope is adjusted through the connecting flange to carry out oval adjustment, a plurality of oval bulges are obtained to obtain the adjusted overpressure balloon, the stress of the balloon body after adjustment is distributed more uniformly in the circumferential direction, and the pressure resistance of the balloon is higher.
The ellipse adjustment is as follows: the circular cross-section curve of the balloon is changed from the original circular arc curve to an elliptical curve, the shape compensation is carried out on the main factors (the circular curvature radius of the balloon body) influenced by the pressure resistance of the overpressure balloon at the design stage, and the circular cross-section curve is an elliptical curve so that the circular curvature radius of the part, which is in contact with the rope, at the design stage is smaller than the circular curvature radius of the central point of the single balloon body.
Technical effects
Compared with the prior art, the invention adopts an elliptical design scheme to adjust and design by flexibly controlling the shape structure of the capsule body and considering the loaded deformation in the theoretical design stage. The unexpected technical effects that result from this include: the rope in a form of sliding relative to the capsule body is adopted to replace a reinforcing rib in the prior art, the spherical change can be flexibly controlled in a mode of applying pretightening force to the rope through a flange at the end part of the capsule body, and the appearance of the capsule body can conveniently reach the designed shape in the implementation stage; in theoretical design, the radial tightening amount of the sliding rope at the equatorial section is taken as a design variable, and then the sliding rope is adjusted, so that the adjusted overpressure balloon has ideal pressure resistance and the stress distribution on the balloon body is more uniform.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a flange according to the present invention;
FIG. 3 is a cross-sectional view of a coupling flange according to the present invention;
FIG. 4 shows the welding pattern and coating distribution of the cloth strip cutting pieces of the present invention;
fig. 5 is a graph a of an original rope and a graph B of the rope after the rope is tightened by a flange according to the present invention;
FIG. 6 is a cross-sectional view of the bladder at the equatorial plane and with an internal pressure differential applied thereto according to step one of the present invention;
FIG. 7 is a sectional view of the bladder with adjusted cross section and a deformation curve of the bladder with an internal pressure difference according to the second step of the present invention;
in the figure: the balloon body 1, the sliding rope 2, the body folds 3, the connecting flange 4, the hollow lead screw 5, the nut 6, the rib 7, the fixing ring 8, the chassis 9, the opening 10, the sliding groove 11, the coating 12, the groove structure 13, the connecting band 14 and the single-width cloth strip 15.
Detailed Description
As shown in fig. 1, the overpressure balloon adopting a sliding rope reinforced structure according to the present embodiment includes: balloon utricule 1, slip rope 2, utricule fold 3 and flange 4, wherein: connecting flange 4 sets up tip about the balloon utricule 1, and 2 both ends of slip rope link to each other and evenly vertically set up on the balloon utricule 1 with connecting flange 4, and utricule fold 3 sets up on the balloon utricule 1.
The balloon body 1 comprises: a single-width cloth strip 15 and a connecting band 14, wherein: the single cloth strips 15 are uniformly arranged in a sphere structure in the longitudinal direction, the connecting band 14 is arranged at the joint of the single cloth strips, and the coating 12 and the sliding rope 2 are sequentially arranged on the connecting band 14.
The balloon body 1 is formed by a plurality of single cloth strips 15 through heat sealing by adopting a welding process, the sliding rope 2 is in sliding contact with the connecting belt 14, and the connecting belt 14 is provided with a coating 12 for reducing friction force.
The balloon body material adopts Vectran fiber, and the sliding rope adopts F12 fiber.
The connecting flange 4 comprises: hollow lead screw 5, nut 6, rib 7, solid fixed ring 8 and chassis 9, wherein: the hollow screw rod 5 is arranged in the center of the chassis 9, the nut 6 is arranged on the hollow screw rod 5 and movably connected with the hollow screw rod, the fixing ring 8 is connected with the nut 6 through the rib 7 and connected with the sliding rope 2, the length of the sliding rope 2 is changed through the nut 6, and the purpose of changing the spherical shape is achieved.
The chassis 9 on be equipped with be used for with slip rope 2 matched with trompil 10 and slip recess 11, wherein: the open holes 10 are uniformly arranged around the center of the chassis 9, and the open holes 10 are arranged on two sides of the sliding groove 11.
The middle part of the chassis is provided with a groove structure 13.
The implementation relates to a method for realizing the sliding rope reinforced structure overpressure balloon, which comprises the following steps:
the method comprises the following steps: forming N arc-shaped bulges by taking the radial shortening dl of the sliding rope 2 on the equatorial plane as a design parameter;
as shown in fig. 5, the initial spherical shape in this embodiment is a positive sphere with a diameter equal to R, and the sliding rope 2 has a corresponding tightening tendency by applying the prestress, curve a, and the tightened sliding rope 2 has curve B.
As shown in figure 6, the original membrane surface has a circumferential curvature radius of R, the circumferential curve of the membrane surface after the rope is applied with pretightening force is C, the radius of the curve is R, the central angle of the radius is α, the circumferential curvature radius of the balloon body is smaller, the pressure resistance is stronger, after the internal pressure action, the membrane surface is deformed into a D shape, bulges with different sizes can be formed on the membrane surface by controlling the length of the rope, the appearance control of the balloon body model is conveniently realized, and the size parameters of the initially designed bulges meet the following requirements:
wherein r and α are the radius and the central angle of the arc-shaped bulge equatorial section curve (namely the arc curve C) formed after the sliding rope 2 is tightened.
Step two: the length of the sliding rope 2 is adjusted through the connecting flange 4 to carry out oval adjustment, N oval bulges are obtained to obtain the adjusted overpressure balloon, the stress of the balloon body after adjustment is distributed more uniformly in the circumferential direction, and the pressure resistance of the balloon is higher.
As shown in figure 7, the arc curve E is the arc curve C in figure 6, the arc curve E is adjusted to be an elliptic curve F, the stress level at the point can be reduced by reducing the circumferential curvature radius of the balloon body 1 close to the sliding rope 2, the stress distribution on the membrane surface of the balloon body with the best design dl value can be more uniform, specifically, the basic shape of the ellipse can be controlled by passing the known elliptic curve through A, B, B ', wherein the point A, B is the lowest point of a single-width balloon body, namely the position of the rope, the point B' is the highest point of the single-width balloon body, namely the intersection point of the arc curve and the y axis, the normal included angle at the point B, B 'is set to be 2 α, the included angle between the tangent line of the cross-section curve after inflation and overpressure deformation at the point B' and OB is marked as delta, the size of the curve shape of m is controlled to control the long axis of the ellipse in the x
The ellipse equation based on the local coordinate system x 'O' y is:
the curve passes through A, B two points, so the ellipse equation parameters are:
wherein: the value of m is solved by the adjusted radius of curvature at two points A, B.
Compared with the prior art, the balloon can be flexibly designed to be spherical, the stress distribution on the sliding rope is more uniform due to the contact of the sliding form, the stress concentration caused by the structure of the balloon bag body is avoided, the design of the first step is finished by controlling the tightening amount dl of the rope, the adjustment design of the second step is finished on the basis of the design to achieve the optimal design shape, and the overpressure performance of the balloon bag body is improved more obviously.
In this embodiment, theoretical design is completed by designing the curve shape parameter, and the specific steps are as follows: the radial shrinkage of the rope in the equatorial plane is used as a control variable to preliminarily determine circular arc parameters of the circular curve, and the circular arc of the original design is replaced by the elliptic curve of the circumferential curvature variation, so that the effect of improving the pressure resistance is achieved. The sliding cable reinforced overpressure balloon structurally adopts a connecting flange structure arranged at two ends of the balloon body to control the length of the rope so as to flexibly control the appearance of the overpressure balloon, and the shape of the balloon body can be preset to be a design appearance.
Through specific calculation examples, when the diameter of the overpressure balloon is 4m, when the number of slices is designed to be about 16 by the first design scheme step, dl (radial contraction amount of the rope on the equatorial plane) is proper in fig. 5, the volume of the balloon is reduced to only 0.0045, and the stress is 54% of that of the balloon when the pressure difference is equal to 0 under the same load (32000 Pa), and the pre-designed bulge obviously improves the pressure resistance; at this time, through ABAQUS finite element analysis, the maximum stress and the minimum stress of the balanced equatorial plane are 255MPa and 172MPa respectively, and after the correction design by the method (at this time, m is 1.275m in FIG. 7), the maximum stress and the minimum stress of the balanced equatorial plane are 225MPa and 219.5MPa respectively, the corrected shape tension distribution of the balloon is more uniform, and the stress level is also reduced.
Compared with the prior art, the invention obviously improves the pressure resistance of the overpressure balloon by designing the appearance of the overpressure balloon, and can flexibly control the appearance of the overpressure balloon by controlling the contraction quantity of the rope through the connecting flanges arranged at the two ends of the balloon.
The foregoing embodiments may be modified in many different ways by those skilled in the art without departing from the spirit and scope of the invention, which is defined by the appended claims and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A method for designing and realizing a sliding rope reinforced structure overpressure balloon is characterized by comprising the following steps:
the method comprises the following steps of firstly, forming N circular-arc bulges by taking the radial shrinkage dl of a sliding rope on an equatorial plane as a design parameter, wherein the circular curvature radius of an original membrane surface is R, the radius of a curve of the equatorial section of the circular-arc bulge formed after the sliding rope is tightened is R, the central angle is α, and the size parameter of the designed bulge meets the following requirements:
wherein r and α are the radius of the curve of the arc-shaped bulge equator section and the central angle formed after the sliding rope is tightened;
adjusting the length of the sliding rope through a connecting flange to perform elliptic adjustment to obtain N elliptic bulges so as to obtain the adjusted overpressure balloon, specifically, adjusting an equatorial section curve of the circular-arc-shaped bulge formed after the sliding rope is tightened into an elliptic curve, reducing the stress level at the point by reducing the circumferential curvature radius of the balloon body close to the sliding rope, controlling the basic shape of the ellipse by controlling the intersection point B ' of the circular arc curve and the y axis, setting the normal included angle at the point B, B ' as 2 alpha, setting the included angle delta between the tangent of the section curve at the point B ' after the overpressure deformation and OB and the size control curve shape of m, wherein the stress distribution on the membrane surface of the balloon body is more uniform after the optimal design dl value is obtained, namely the known elliptic curve passes through the lowest point of a single-width balloon body, namely the position A, B where the rope is located and the highest point of the single-width balloon body, namely the intersection point B
The ellipse equation based on the local coordinate system x 'O' y is:
the curve passes through A, B two points, so the ellipse equation parameters are:
wherein: the value of m is solved by the adjusted radius of curvature at two points A, B.
2. An over-pressure balloon with a strop-enhancing structure and optimized pressure resistance based on the method of claim 1, comprising: balloon utricule, slip rope, utricule fold and flange, wherein: the connecting flanges are arranged at the upper end part and the lower end part of the balloon body, the two ends of the sliding rope are connected with the connecting flanges and uniformly and longitudinally arranged on the balloon body, and the balloon body is folded and arranged on the balloon body;
the overpressure balloon takes the radial shortening of the sliding rope on the equatorial plane as a design parameter to form a plurality of circular arc bulges; the length of the sliding rope is adjusted through the connecting flange to carry out oval adjustment, a plurality of oval bulges are obtained to obtain the adjusted overpressure balloon, the stress of the balloon body after adjustment is distributed more uniformly in the circumferential direction, and the pressure resistance of the balloon is higher.
3. A superpressure balloon as claimed in claim 2, wherein said attachment flange comprises: hollow lead screw, nut, rib, solid fixed ring and chassis, wherein: the hollow screw rod is arranged in the center of the chassis, the nut is arranged on the hollow screw rod and movably connected with the hollow screw rod, and the fixing ring is connected with the nut through a rib and is connected with the sliding rope.
4. A superpressure balloon as in claim 2, wherein said balloon body comprises: single width cloth strip and connecting band, wherein: the single cloth strip is longitudinally and uniformly arranged to be of a sphere structure, the connecting belt is arranged at the joint of the single cloth strip, and the sliding rope is arranged on the connecting belt.
5. The sliding-cord reinforced structural superpressure balloon of claim 4, wherein the attachment straps are provided with a coating for reducing friction.
6. A sliding-cord reinforced structural superpressure balloon as in claim 3, wherein a groove structure is provided in the middle of the base plate.
7. A sliding-cord reinforced structural superpressure balloon as in claim 3, wherein said base plate is provided with openings and sliding grooves for mating with sliding cords, wherein: the trompil evenly sets up in the a week around the chassis center, and the trompil sets up in sliding groove both sides.
8. the overpressure balloon of claim 2, wherein the arc-shaped bulge has an original membrane circumferential curvature radius R, a membrane circumferential curve C with a radius R of a central angle α after pre-tightening force is applied to the rope, and a balloon body with a smaller circumferential curvature radius and a stronger pressure resistance, wherein after overpressure, the membrane surface is deformed into a D shape, so that the membrane surface can be freely switched between two-dimensional and three-dimensional, deformation control of various balloon body models is realized, and the size of the bulge satisfies the following requirements:
wherein r and α are the radius of the curve of the equator section of the arc-shaped bulge formed after the sliding rope 2 is tightened and the central angle.
9. A balloon as claimed in claim 2 wherein the elliptical adjustment is: the circular arc-shaped film surface curve at the top of the balloon is adjusted to be an elliptical arc shape.
10. A balloon as claimed in claim 2 or claim 9 wherein the elliptical adjustment is: the film surface circumferential curve at the top of the balloon is adjusted to be an elliptic arc shape, and the elliptic arc shape meets the following requirements:
the known ellipse curve passes through three points A, B, B ', the normal included angle at the point B, B ' is set as 2 α, the included angle between the tangent line of the cross-section curve after inflation overpressure deformation at the point B ' and OB is recorded as delta, the size of m controls the curve shape, and in order to control the long axis of the ellipse in the direction of the x axis, the range of m is
The ellipse equation based on the local coordinate system x 'O' y is:
the curve passes through A, B two points, so the ellipse equation parameters are:
wherein: the value of m is solved by the adjusted radius of curvature at two points A, B.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001365.1A CN111186555B (en) | 2020-01-02 | 2020-01-02 | Method for designing and implementing overpressure balloon of sliding rope reinforced structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001365.1A CN111186555B (en) | 2020-01-02 | 2020-01-02 | Method for designing and implementing overpressure balloon of sliding rope reinforced structure |
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| CN111186555A true CN111186555A (en) | 2020-05-22 |
| CN111186555B CN111186555B (en) | 2020-11-03 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2919082A (en) * | 1955-06-20 | 1959-12-29 | Winzen Res Inc | Balloon having reinforcing structure |
| EP0025384B1 (en) * | 1979-09-06 | 1988-11-17 | Centre National D'etudes Spatiales | Container of symmetric lobed structure |
| JP2967196B1 (en) * | 1998-07-10 | 1999-10-25 | 宇宙科学研究所長 | Pressure-resistant balloon and method of manufacturing the same |
| CN103661913A (en) * | 2012-09-07 | 2014-03-26 | 中国科学院光电研究院 | Overpressure type balloon and manufacturing method thereof |
| JP5769850B1 (en) * | 2014-06-19 | 2015-08-26 | ソフトバンクモバイル株式会社 | Moored balloon |
| CN105599890A (en) * | 2016-03-03 | 2016-05-25 | 上海交通大学 | Rope net covering structure |
| CN105836096A (en) * | 2016-02-29 | 2016-08-10 | 上海交通大学 | Euler-body-based aerostat platform and assembly method thereof |
| CN207902728U (en) * | 2017-12-29 | 2018-09-25 | 深圳光启空间技术有限公司 | Super-pressure balloon |
| CN208102304U (en) * | 2018-02-06 | 2018-11-16 | 中国科学院光电研究院 | A kind of variable volume super-pressure balloon |
-
2020
- 2020-01-02 CN CN202010001365.1A patent/CN111186555B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2919082A (en) * | 1955-06-20 | 1959-12-29 | Winzen Res Inc | Balloon having reinforcing structure |
| EP0025384B1 (en) * | 1979-09-06 | 1988-11-17 | Centre National D'etudes Spatiales | Container of symmetric lobed structure |
| JP2967196B1 (en) * | 1998-07-10 | 1999-10-25 | 宇宙科学研究所長 | Pressure-resistant balloon and method of manufacturing the same |
| CN103661913A (en) * | 2012-09-07 | 2014-03-26 | 中国科学院光电研究院 | Overpressure type balloon and manufacturing method thereof |
| JP5769850B1 (en) * | 2014-06-19 | 2015-08-26 | ソフトバンクモバイル株式会社 | Moored balloon |
| CN105836096A (en) * | 2016-02-29 | 2016-08-10 | 上海交通大学 | Euler-body-based aerostat platform and assembly method thereof |
| CN105599890A (en) * | 2016-03-03 | 2016-05-25 | 上海交通大学 | Rope net covering structure |
| CN207902728U (en) * | 2017-12-29 | 2018-09-25 | 深圳光启空间技术有限公司 | Super-pressure balloon |
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| Title |
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