CN107054644B - A kind of ellipsoid mixing umbrella - Google Patents
A kind of ellipsoid mixing umbrella Download PDFInfo
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- CN107054644B CN107054644B CN201710194555.8A CN201710194555A CN107054644B CN 107054644 B CN107054644 B CN 107054644B CN 201710194555 A CN201710194555 A CN 201710194555A CN 107054644 B CN107054644 B CN 107054644B
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- umbrella rope
- canopy
- umbrella
- ellipsoid
- parafoil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C31/00—Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
- B64C31/028—Hang-glider-type aircraft; Microlight-type aircraft
- B64C31/036—Hang-glider-type aircraft; Microlight-type aircraft having parachute-type wing
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
Abstract
The invention discloses a kind of ellipsoid mixing umbrellas, are made of parafoil canopy, ellipsoid canopy, rib, capstan winch, motor, umbrella rope and manipulation umbrella rope；Ellipsoid canopy is located at the centre of mixing umbrella structure, and ellipsoid canopy two sides are connected separately with parafoil canopy, parafoil canopy with along parafoil canopy open up to rib suture connect, form gas chamber, be provided with multiple circular holes on rib, keep each gas chamber pressure of air-flow flow assurance balanced.The umbrella rope upper end of ellipsoid canopy is connect with gores bottom edge, is extended in the parafoil canopy of two sides and is sutured to the rib of distribution and upper lower aerofoil, and in lower aerofoil and the fixed umbrella rope of rib suture, umbrella rope lower end is by becket and manipulation band connection on capstan winch.It is connected at manipulation umbrella rope and the lower aerofoil rear of parafoil, two groups of manipulation umbrella ropes are connect with capstan winch respectively, and motor, which drives capstan winch to rotate and drives, realizes control partially under manipulation umbrella rope drop-down manipulation rear.Ellipsoid mixing umbrella has good gliding ability and controllability, while decelerating effect is obvious.
Description
Technical field
The invention belongs to paraglider technical fields, specifically, being related to a kind of ellipsoid mixing umbrella.
Background technique
Parafoil as a kind of typical low latitude glide vehicle, can not only easily FOLD AND PACK, it is small in size,
Carrying light-weight, easy to carry, and there is excellent gliding ability, stability and navigability, it is led at present in space flight and aviation
Domain is widely used.
In the removal process of rocket booster, spanning height is larger, and speed variation is wider, and atmosphere and
Characteristic and the characteristics of motion difference of many Atmospheric Flows of stratosphere are larger, and multistage parachute recycling system is generallyd use in way of recycling
System.It is recycled in the different stages using different umbrellas.For example, into first using circle umbrella come reduction of speed, speed is worked as after atmosphere
Degree needs to open main chute when dropping to subsonic envelope, control the direction of motion, ensures drop point.Conventional circular parachute is inorganic because of its
The dynamic disadvantage that property is uncontrollable and error is big according to circle umbrella or combines circle umbrella, and system slowdown is obvious, but can not manipulate cunning
Xiang, it is difficult to ensure drop point.Parafoil is mostly used to complete go home control and assigned spot recovery at present, however parafoil parachute-opening is not easy, and first
Beginning working stage decelerating effect is limited, it is contemplated that the weight of regenerant itself is larger, in addition the larger bring of movement velocity itself
Dynamic load is also big, is based on typical round parachute and the respective performance of parafoil, and it is controllable to take into account parafoil for the ellipsoid mixing umbrella of design
Property strong, gliding ability is good and circle umbrella parachute-opening is easy, very fast advantage of slowing down in opening process.
Form mixed type umbrella in parafoil and circle umbrella, using the circle umbrella and respective strong point of parafoil, both ensured under big load can under
Drop is slowed down, while can control the direction of motion again.
Summary of the invention
In order to avoid the shortcomings of the prior art, uncontrollable when independent round parachute being overcome to work, parafoil is independent
Parachute-opening geard-down speed slow problem when work, the present invention propose a kind of ellipsoid mixing umbrella.
The technical solution adopted by the present invention to solve the technical problems is: including parafoil canopy, ellipsoid canopy, rib,
One capstan winch, the second capstan winch, first motor, the second motor, umbrella rope, manipulation umbrella rope, the ellipsoid canopy are located at mixing umbrella structure
Centre, ellipsoid canopy two sides are connected separately with parafoil canopy, and two parafoil canopies are symmetrical structure, parafoil canopy with along parafoil canopy
Open up to rib suture connection, form gas chamber, have multiple circular apertures on rib, keep each gas chamber pressure of air-flow flow assurance equal
Weighing apparatus；The umbrella rope upper end of ellipsoid canopy is connect with gores bottom edge, extended in rib from the parafoil canopy of two sides to distribution and up and down
Aerofoil suture, in lower aerofoil and the fixed umbrella rope of rib suture, umbrella rope lower end is by becket and manipulation band connection on capstan winch；
Manipulation umbrella rope be connected respectively at the lower aerofoil rear of the symmetrical parafoil in ellipsoid canopy two sides, two groups of manipulation umbrella rope lower ends respectively with
First capstan winch, the connection of the second capstan winch, the first capstan winch are connect with first motor by shaft coupling, and the second capstan winch passes through with the second motor
Shaft coupling connection, motor drive capstan winch rotation, drive and realize control partially under manipulation umbrella rope drop-down manipulation rear.
The umbrella rope is four groups, wherein A group umbrella rope, B group umbrella rope are connect with ellipsoid canopy respectively, C group umbrella rope, D group umbrella rope
It is connect with two sides parafoil canopy leading edge；Manipulate umbrella rope be two groups, E group manipulate umbrella rope, F group manipulate umbrella rope respectively with parafoil rear phase
Connection；Each group umbrella rope, manipulation umbrella rope upper end are in Y-shaped structure.
Beneficial effect
A kind of ellipsoid mixing umbrella proposed by the present invention, from ellipsoid canopy, parafoil canopy and along parafoil canopy open up to rib
Composition；Ellipsoid canopy is located at the centre of mixing umbrella structure, and ellipsoid canopy two sides are connected separately with parafoil canopy, parafoil canopy and edge
Parafoil canopy open up to rib suture connection, form gas chamber, be provided with multiple circular holes on rib, make each gas chamber of air-flow flow assurance
Pressure is balanced.The umbrella rope upper end of ellipsoid canopy is connect with gores bottom edge, extended in rib from the parafoil canopy of two sides to distribution with
Upper lower aerofoil suture, in lower aerofoil and the fixed umbrella rope of rib suture, umbrella rope lower end is being twisted by becket and manipulation band connection
On disk.It is connected at manipulation umbrella rope and the lower aerofoil rear of parafoil, two groups of manipulation umbrella ropes are connect with capstan winch respectively, and motor, which drives, to be twisted
Disk, which is rotated and driven, realizes control partially under manipulation umbrella rope drop-down manipulation rear.
The canopy of ellipsoid mixing umbrella of the present invention is the ellipsoid canopy aerofoil in medianly zygomorphic parafoil clothing face and centre, is led to
Crossing the unilateral drop-down of the parafoil rear umbrella rope of ellipsoid mixing umbrella, perhaps bilateral drop-down realizes the spiraling of parafoil, slows down or sparrow drop
Movement.When inclined under rear control wire unilateral side, entire ellipsoid mixing umbrella does orbital movement, when the drop-down of rear bilateral equivalent, entirely
Ellipsoid mixing umbrella does deceleration or sparrow drop movement.Similar when kinetic characteristic works independently to parafoil, intermediate ellipsoid aerofoil is then used
Slow down, makes up the limited deficiency of parafoil decelerating effect.By the combination of two kinds of structures, ellipsoid mixing umbrella has excellent gliding
Performance and controllability, while intermediate ellipsoid canopy decelerating effect is obvious.
Detailed description of the invention
A kind of ellipsoid mixing umbrella of the present invention is described in further detail with embodiment with reference to the accompanying drawing.
Fig. 1 is ellipsoid mixing umbrella structural schematic diagram of the present invention.
Fig. 2 is the liter resistance curve figure of ellipsoid mixing umbrella of the present invention.
In figure:
1. 2. ellipsoid canopy of parafoil canopy, 3. rib, 4. first 5. second capstan winch of capstan winch, 6. first motor, 7. second electricity
Machine
A group umbrella rope B group umbrella rope C group umbrella rope D group umbrella rope E group manipulates umbrella rope F group and manipulates umbrella rope
Specific embodiment
The present embodiment is a kind of ellipsoid mixing umbrella.
Refering to fig. 1, Fig. 2, the present embodiment ellipsoid mixing umbrella, by parafoil canopy 1, ellipsoid canopy 2, rib 3, the first capstan winch 4,
Second capstan winch 5, first motor 6,7, four groups of umbrella ropes of the second motor and two groups of manipulation umbrella rope compositions.Wherein, ellipsoid canopy 2 is located at mixed
The centre of umbrella structure is closed, 2 two sides of ellipsoid canopy are connected separately with parafoil canopy 1；Two parafoil canopies 1 are symmetrical structure, parafoil umbrella
Clothing 1 with along parafoil canopy 1 open up to the suture of rib 3 connect, form gas chamber, be machined with multiple circular apertures on rib 3, make air-flow
Each gas chamber pressure of flow assurance is balanced.The umbrella rope upper end of ellipsoid canopy 2 is connect with gores bottom edge, in the parafoil canopy 1 of two sides
It extends and is sutured to the rib 3 of distribution and upper lower aerofoil, in lower aerofoil and the fixed umbrella rope of 3 suture of rib, umbrella rope lower end passes through gold
Belong to ring and manipulation band connection on capstan winch.Manipulate the umbrella rope lower aerofoil rear with the symmetrical parafoil canopy 1 in 2 two sides of ellipsoid canopy respectively
Place is connected, and two groups of manipulation umbrella rope lower ends are connect with the first capstan winch 4, the second capstan winch 5 respectively, and the first capstan winch 4 and first motor 6 are logical
Shaft coupling connection is crossed, the second capstan winch 5 is connect with the second motor 7 by shaft coupling, and motor drives capstan winch rotation, and drives manipulation umbrella
Control is realized partially under rope drop-down manipulation rear.In the present embodiment, due to round bell in the low angle of attack drag area
Greatly, the lift coefficient very little of umbrella is entirely mixed, resistance coefficient is larger, and lifting resistance characteristic difference is unable to satisfy the requirement of glide ratio, considers
Shape is similar to the ellipsoid canopy structure of round bell, and wherein ellipsoid canopy is located at canopy middle section, in ellipsoid umbrella
Clothing two sides are symmetrical parafoil canopy structure.
In the present embodiment, umbrella rope is divided into four groups from the front to the back, wherein A group umbrella rope, B group umbrella rope connect with ellipsoid canopy respectively
It connects, C group umbrella rope, D group umbrella rope are connect with two sides parafoil canopy leading edge；Manipulating umbrella rope is two groups, and E group manipulates umbrella rope, F group manipulates umbrella
Rope is connected with parafoil rear respectively；Each group umbrella rope, manipulation umbrella rope upper end are in Y-shaped structure.Control mechanism by establishing rules in advance
It draws track and position under parafoil current state and velocity information calculates the E group of mixed structure parafoil and manipulates umbrella rope and F group
The lower deviator of umbrella rope is manipulated, the second motor 7 drives the second capstan winch 5, first motor 6 that the rotation of the first capstan winch 4 is driven to complete manipulation umbrella
The downdraw process of rope.
Working principle:
Control mechanism is by controller, manipulation umbrella rope, capstan winch and motor form.Parafoil launch after, inertial navigation sensor, GPS with
And height sensor obtains position, speed and the posture information under current state, controller calculates unilateral side according to current information
Deviator under deviator and bilateral rear under rear, motor drive capstan winch rotation, pass through capstan winch rotation control left and right rear and manipulate umbrella
Rope.
The canopy of ellipsoid mixing umbrella is the ellipsoid canopy aerofoil in medianly zygomorphic parafoil clothing face and centre, left and right
Inclined under umbrella unilateral side, ellipsoid mixing umbrella does orbital movement, and rear manipulates under umbrella rope equivalent partially, does deceleration or sparrow drop movement, movement
Similar when characteristic works independently to parafoil, intermediate ellipsoid aerofoil is then used to slow down, and makes up the limited deficiency of parafoil decelerating effect.
By the combination of two kinds of structures, ellipsoid mixing umbrella has good gliding ability and controllability, while subtracting in removal process
Speed effect is obvious.
Ellipsoid mixing umbrella ascending aorta banding is shown in Fig. 2 with the changing rule of the angle of attack.Ellipsoid is mixed in the present embodiment
The structure for closing umbrella completes grid dividing in ICEM software and carries out numerical simulation in FLUENT software, and met according to difference
The lift coefficient of the ellipsoid mixing umbrella and resistance coefficient draw curve under angle, and whether analysis lifting resistance characteristic, which meets recycling, requires.When
After the angle of attack is greater than 0 °, ellipsoid mixing umbrella lift coefficient and resistance coefficient all increase with the increase of the angle of attack, and the linearity is preferable, bent
Line changing rule meets design requirement, while the angle of attack, at 8 °, ellipsoid mixing umbrella lift resistance ratio reaches maximum value 3.47, the resistance of this liter
The ellipsoid mixing umbrella structure of ratio has excellent gliding ability, meets the requirement in certain type Space Vehicle Booster removal process.
Claims (2)
1. a kind of ellipsoid mixing umbrella, it is characterised in that: including parafoil canopy, ellipsoid canopy, rib, the first capstan winch, the second capstan winch,
First motor, the second motor, umbrella rope, manipulation umbrella rope, the ellipsoid canopy are located at the centre of mixing umbrella structure, ellipsoid canopy two sides
Be connected separately with parafoil canopy, two parafoil canopies are symmetrical structure, parafoil canopy with along parafoil canopy open up to rib suture connect
It connects, forms gas chamber, have multiple circular apertures on rib, keep each gas chamber pressure of air-flow flow assurance balanced；The umbrella rope of ellipsoid canopy
Upper end is connect with gores bottom edge, is extended in the parafoil canopy of two sides and is sutured to the rib of distribution and upper lower aerofoil, in lower aerofoil
With the fixed umbrella rope of rib suture, umbrella rope lower end is by becket and manipulation band connection on capstan winch；Manipulate umbrella rope respectively with it is ellipse
It is connected at the lower aerofoil rear of the symmetrical parafoil in ball canopy two sides, two groups of manipulation umbrella rope lower ends are twisted with the first capstan winch, second respectively
Disk connection, the first capstan winch are connect with first motor by shaft coupling, and the second capstan winch is connect with the second motor by shaft coupling, motor
Capstan winch rotation is driven, drives and realizes control partially under manipulation umbrella rope drop-down manipulation rear.
2. ellipsoid mixing umbrella according to claim 1, it is characterised in that: the umbrella rope is four groups, respectively A group umbrella rope, B
Group umbrella rope, C group umbrella rope and D group umbrella rope；Wherein, A group umbrella rope, B group umbrella rope are connect with ellipsoid canopy respectively, C group umbrella rope, D group umbrella
Rope is connect with two sides parafoil canopy leading edge；Manipulating umbrella rope is two groups, and respectively E group manipulation umbrella rope and F group manipulate umbrella rope；E group behaviour
Vertical umbrella rope, F group manipulation umbrella rope are connected with parafoil rear respectively；Each group umbrella rope, manipulation umbrella rope upper end are in Y-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194555.8A CN107054644B (en) | 2017-03-29 | 2017-03-29 | A kind of ellipsoid mixing umbrella |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194555.8A CN107054644B (en) | 2017-03-29 | 2017-03-29 | A kind of ellipsoid mixing umbrella |
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| Publication Number | Publication Date |
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| CN107054644A CN107054644A (en) | 2017-08-18 |
| CN107054644B true CN107054644B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710194555.8A Active CN107054644B (en) | 2017-03-29 | 2017-03-29 | A kind of ellipsoid mixing umbrella |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657428B (en) * | 2018-05-18 | 2024-05-10 | 深圳市百川融创科技有限公司 | Kite parafoil |
| CN110228607A (en) * | 2019-06-13 | 2019-09-13 | 咸阳师范学院 | A kind of optimum design method based on round mixing parafoil |
| JP7332427B2 (en) * | 2019-10-25 | 2023-08-23 | 慶應義塾 | parachute |
| CN114476087B (en) * | 2021-12-24 | 2023-07-28 | 北京空间机电研究所 | Parafoil control load simulation device and simulation method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6220547B1 (en) * | 1999-06-08 | 2001-04-24 | Pioneer Aerospace Corporation | Large scale parafoil apparatus with an energy attenuator for controlling initial deployment |
| US6622968B1 (en) * | 2002-03-01 | 2003-09-23 | Edward Strong | Guided airborne vehicle, cargo and personnel delivery system |
| FR2866859B1 (en) * | 2004-03-01 | 2006-05-26 | Diamond White Servicos De Cons | NEGATIVE DIEDER WING FOR TRACTION OF A LOAD |
| CN102897320B (en) * | 2012-10-20 | 2016-03-30 | 向言李 | A kind of self-jacked gliding parachute |
| CN105109681B (en) * | 2015-09-16 | 2018-06-12 | 航宇救生装备有限公司 | A kind of adjustable unmanned Powered parafoil of established angle |
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