CN107914888B - A kind of hypersonic aircraft Special fuel tank structure - Google Patents
A kind of hypersonic aircraft Special fuel tank structure Download PDFInfo
- Publication number
- CN107914888B CN107914888B CN201610883994.5A CN201610883994A CN107914888B CN 107914888 B CN107914888 B CN 107914888B CN 201610883994 A CN201610883994 A CN 201610883994A CN 107914888 B CN107914888 B CN 107914888B
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- CN
- China
- Prior art keywords
- fuel tank
- special fuel
- sandwich
- truss
- hypersonic aircraft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/02—Tanks
- B64D37/06—Constructional adaptations thereof
Abstract
The present invention proposes a kind of hypersonic aircraft Special fuel tank structure, including Special fuel tank main structure and space truss structure, the Special fuel tank main structure is the closed case structure of I-shaped sandwich, triangular interlayer structure, stringer and foamed sandwich structure bonding composition, several set space truss structures are installed in parallel in inside Special fuel tank main structure, by connecting inside connection structure and stringer and Special fuel tank main structure.The present invention is designed using space truss structure and the design of various sandwich Rational structures and load load path, while realizing Oiltank structure light-weight design, it can satisfy the requirement for bearing pressure loading and section load, pass through adaptability design, it can be directly applied in hypersonic aircraft Oiltank structure, while structural bearing may be implemented, architecture quality is greatly lowered.
Description
Technical field
The present invention relates to a kind of hypersonic aircraft Special fuel tank structures, belong to hypersonic aircraft structure design skill
Art field.
Background technique
For traditional guided missile circle Oiltank structure mainly using casting and sheet metal structural scheme, structural symmetry is good, can be preferable
Receiving fuel pressure load, architecture quality also readily satisfies index request, although there are Special fuel tank structure in fuel tanker,
But since aircraft takes the difference of oily mode, inside aircraft fuel tanks pressure is lower, also readily satisfies and bears wanting for internal pressure load
It asks.
Important component of the hypersonic aircraft Oiltank structure as the main bearing structure of aircraft, internal pressure load
Larger, the ability that special-shaped structure feature makes it bear inner pressuring load is weaker, therefore how to realize the carrying of Special fuel tank structure,
Realize that the light-weight design of structure is very difficult simultaneously.
Summary of the invention
It is an object of the invention to overcome the shortage of prior art, one kind is provided in inner pressuring load and section load-up condition
Under, effectively realize structural bearing and structure lightened hypersonic aircraft Special fuel tank structure.
Technical solution of the invention: a kind of hypersonic aircraft Special fuel tank structure, including Special fuel tank main body
Structure and space truss structure, the Special fuel tank main structure are I-shaped sandwich, triangular interlayer structure, stringer
With the closed case structure of foamed sandwich structure bonding composition, several set space truss structures are installed in parallel in Special fuel tank main body
Inside configuration, by connecting inside connection structure and stringer and Special fuel tank main structure, the I-shaped sandwich is set
The curved portion in Special fuel tank main structure is set, the triangular interlayer structure setting is in the flat of Special fuel tank main structure
The turning position of Special fuel tank main structure is arranged in facial position, foamed sandwich structure, and stringer is arranged in I-shaped sandwich
On the docking site of triangular interlayer structure and I-shaped sandwich and/or triangular interlayer structure, i.e., in I-shaped
The docking site of shape sandwich and triangular interlayer structure must be provided with stringer, in addition again in I-shaped sandwich and/
Or stringer is set in I-shaped sandwich.
The inside that the external structure form of hypersonic aircraft Special fuel tank structure depends on hypersonic aircraft is empty
Between structure, according to the interior spatial structure of hypersonic aircraft, using above-mentioned I-shaped sandwich, triangular interlayer knot
The setting principle of structure, stringer and foamed sandwich structure can be designed that various informative Special fuel tank main structure.
The present invention is not particularly limited the material of hypersonic aircraft Special fuel tank structure, the selection root of metal species
It is determined according to indices such as the temperature of hypersonic aircraft, pressure-bearings, aluminium alloy is generally used in existing engineering, and foam is general
For foamed aluminium.
The I-shaped sandwich is that metal skin and the I-shaped sandwich combination of metal form, and is arranged in Special fuel tank
The curved portion of main structure ensure that curved portion ties up shape under the premise of ensure that bearing requirements.
The triangular interlayer structure is that metal skin and triangles of metal sandwich combination form, and is arranged in Special fuel tank
The plane position of main structure, ensure that the requirement of plane position pressure-bearing.
The stringer is the hollow pipe of metal, must at I-shaped sandwich and triangular interlayer structure docking site
It must be arranged, make the dispersion and transmitting of load between different sandwiches, improve hypersonic aircraft Special fuel tank structure
Bearing capacity cooperates the stringer being arranged in I-shaped sandwich and/or triangular interlayer structure, is used to and space truss knot
Structure connection forms the inside support of hypersonic aircraft Special fuel tank structure.Stringer is in I-shaped sandwich and/or triangle
The position being arranged in shape sandwich according to hypersonic aircraft Special fuel tank structure carrying determine, those skilled in the art
Member can be specifically arranged according to the structure and bearing capacity of hypersonic aircraft Special fuel tank structure, and the selection of position is arranged
For techniques well known.
The foamed sandwich structure uses foam metal and metal skin structure, and Special fuel tank main structure is arranged in
Turning position, the stress that can effectively reduce cabin corner region under the conditions of inner pressuring load are concentrated.
The space truss structure is made of several truss, and truss is the hollow pipe of aluminium alloy, and truss passes through connection
Structure and stringer are connect with the inside of Special fuel tank main structure, further improve the energy that Special fuel tank resists inner pressuring load
Power, while can effectively improve the anti-unstability ability of Oiltank structure.Positive/negative thread is arranged in truss both ends, when connecting with connection structure
Play the role of truss length adjustment, reduces the requirement of fuel tank assembly precision, improve assembly efficiency.
The connection structure includes jointing, connecting support, plate nut, attachment screw, fixing bolt, fixed spiral shell
Mother, shaft locknut, rotating shaft screw bolt and truss locking nut, wherein truss is by being threaded into jointing, and passes through
The locking of truss locking nut, jointing are attached by shaft locknut with rotating shaft screw bolt with connecting support, connection branch
Seat realizes the connection and power transmission with stringer by plate nut, attachment screw, fixing bolt and fixture nut.
Jointing and connecting support use articulated connection form, realize the single stretching bearer properties of truss structure.Connection
Support is fixedly connected with stringer by plate nut, and the concentration point load that truss transmits is dispersed.By truss hingedly and
The single effective dispersion for stretching carrying sum aggregate centre-point load of truss structure may be implemented in connecting support design.
Several sets installed in parallel are arranged in the space truss structure, according to the length of Special fuel tank main structure and hold
Power is carried to determine gap and the quantity of its setting.
The present invention compared with prior art the utility model has the advantages that
(1) present invention is set using space truss structure and the design of various sandwich Rational structures and load load path
Meter while realizing Oiltank structure light-weight design, can satisfy the requirement for bearing pressure loading and section load, pass through adaptation
Property design, can be directly applied in hypersonic aircraft Oiltank structure, while structural bearing may be implemented, significantly
Reduce architecture quality；
(2) present invention in Special fuel tank structure by carrying out high specific stiffness lightweight sandwich and space truss structure
Matched design realizes under inner pressuring load and section load-up condition, and the high rigidity design of Special fuel tank structure ensure that simultaneously
The lightweight demand of Oiltank structure, has a good application prospect in engineering；
(3) design of different type lightweight sandwich covering structure and use of the present invention, realize the light-weight design of structure；
(4) the special connection relationship between lightweight stressed-skin construction and space truss structure of the present invention, realizes truss structure
The single effective dispersion for stretching carrying sum aggregate centre-point load, further improves bearing capacity.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the partial enlarged view at Figure 1A；
Fig. 3 is Fig. 2 F-F cross-sectional view.
Specific embodiment
Below in conjunction with drawings and concrete examples, the present invention will be described in detail.
With certain model hypersonic aircraft Special fuel tank structure shown in FIG. 1, by Special fuel tank main structure and space
Truss structure, Special fuel tank main structure is by four 2, six pairs of triangular interlayer structure stringers 3 of I-shaped sandwich 1, two
Closed case structure is formed with four bondings of foamed sandwich structure 4, two pairs of stringers 3 are arranged in I-shaped sandwich 1 and triangle
The parallel docking site of shape sandwich 2, two pairs of stringers 3 are arranged in two I-shaped sandwiches 1 of Special fuel tank lower part,
Two pairs of stringers 3 are arranged above and below Special fuel tank in two triangular interlayer structures 2；Space truss structure is mounted on Special fuel tank master
Body inside configuration is supported inside Special fuel tank main structures in this example, every set using 3 sets space truss structures disposed in parallel
Space truss structure has 5 truss 5, and truss 5 inside connection structure 15 and stringer 3 and Special fuel tank main structure by connecting.
As shown in Figure 1, 2, 3, fixing bolt 10 and fixture nut 11 complete plate nut 8 in stringer 3 first for specific installation
On installation fix；Then I-shaped sandwich 1, triangular interlayer structure 2, stringer 3 and foamed sandwich structure 4 is completed to assemble
Assembly forms lightweight stressed-skin construction；Connecting support 7 is completed by attachment screw 9 and plate nut 8 in lightweight stressed-skin construction
On installation, and apply sealant sealing；Truss 5 and jointing 6 are attached, and long by positive/negative thread adjusting truss
Truss 5 and jointing 6 are finally connected to lightweight by connecting support 7, shaft locknut 12, rotating shaft screw bolt 13 by degree
On stressed-skin construction, and locked by truss locking nut 14.
Unspecified part of the present invention is known to the skilled person technology.
Claims (7)
1. a kind of hypersonic aircraft Special fuel tank structure, it is characterised in that: including Special fuel tank main structure and space purlin
Frame structure, the Special fuel tank main structure be I-shaped sandwich (1), triangular interlayer structure (2), stringer (3) and
The closed case structure of foamed sandwich structure (4) bonding composition, several set space truss structures are installed in parallel in Special fuel tank master
Body inside configuration, by being connect inside connection structure (15) and stringer (3) and Special fuel tank main structure, the I-shaped folder
The curved portion of Special fuel tank main structure is arranged in layer structure (1), and triangular interlayer structure (2) setting is in special-shaped oil
The turning position of Special fuel tank main structure, stringer (3) is arranged in the plane position of box main body structure, foamed sandwich structure (4)
Be arranged the docking site of I-shaped sandwich (1) and triangular interlayer structure (2) and I-shaped sandwich (1) and/
Or in triangular interlayer structure (2).
2. a kind of hypersonic aircraft Special fuel tank structure according to claim 1, it is characterised in that: the space
Truss structure is made of several truss (5), and truss is the hollow pipe of aluminium alloy, and truss passes through connection structure (15) and stringer
(3) it is connect with the inside of Special fuel tank main structure.
3. a kind of hypersonic aircraft Special fuel tank structure according to claim 2, it is characterised in that: the connection
Structure (15) includes jointing (6), connecting support (7), plate nut (8), attachment screw (9), fixing bolt (10), fixes
Nut (11), shaft locknut (12), rotating shaft screw bolt (13) and truss locking nut (14), wherein truss (5) passes through screw thread
It screws in jointing (6), and is locked by truss locking nut (14), jointing (6) and connecting support (7) pass through shaft
Locknut (12) is attached with rotating shaft screw bolt (13), and connecting support (7) passes through plate nut (8), attachment screw (9), consolidates
Determine bolt (10) and fixture nut (11) is realized and the connection and power transmission of stringer (3).
4. a kind of hypersonic aircraft Special fuel tank structure according to claim 1, it is characterised in that: the I-shaped
Shape sandwich (1) is that metal skin and the I-shaped sandwich combination of metal form.
5. a kind of hypersonic aircraft Special fuel tank structure according to claim 1, it is characterised in that: the triangle
Shape sandwich (2) is that metal skin and triangles of metal sandwich combination form.
6. a kind of hypersonic aircraft Special fuel tank structure according to claim 1, it is characterised in that: the stringer
It (3) is the hollow pipe of metal.
7. a kind of hypersonic aircraft Special fuel tank structure according to claim 1, it is characterised in that: the foam
Sandwich (4) uses foam metal and metal skin structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883994.5A CN107914888B (en) | 2016-10-10 | 2016-10-10 | A kind of hypersonic aircraft Special fuel tank structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883994.5A CN107914888B (en) | 2016-10-10 | 2016-10-10 | A kind of hypersonic aircraft Special fuel tank structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107914888A CN107914888A (en) | 2018-04-17 |
| CN107914888B true CN107914888B (en) | 2019-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610883994.5A Active CN107914888B (en) | 2016-10-10 | 2016-10-10 | A kind of hypersonic aircraft Special fuel tank structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113120245B (en) * | 2021-04-30 | 2022-07-15 | 成都飞机工业（集团）有限责任公司 | Fuel tank arrangement method for flying wing layout unmanned aerial vehicle |
| CN114148531B (en) * | 2021-11-02 | 2024-03-12 | 湖北航天技术研究院总体设计所 | Aircraft dysmorphism oil tank structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1241229B1 (en) * | 2001-03-16 | 2004-12-01 | Ube Industries, Ltd. | Fuel resistant polyamide and its use |
| CN202370916U (en) * | 2011-12-14 | 2012-08-08 | 江西洪都航空工业集团有限责任公司 | Irregular hydraulic oil tank |
| WO2013099873A1 (en) * | 2011-12-27 | 2013-07-04 | 株式会社Fts | Automobile fuel tank |
| CN105253011A (en) * | 2015-11-06 | 2016-01-20 | 优利康达（天津）科技有限公司 | New type automobile gasoline tank and forming method thereof |
-
2016
- 2016-10-10 CN CN201610883994.5A patent/CN107914888B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1241229B1 (en) * | 2001-03-16 | 2004-12-01 | Ube Industries, Ltd. | Fuel resistant polyamide and its use |
| CN202370916U (en) * | 2011-12-14 | 2012-08-08 | 江西洪都航空工业集团有限责任公司 | Irregular hydraulic oil tank |
| WO2013099873A1 (en) * | 2011-12-27 | 2013-07-04 | 株式会社Fts | Automobile fuel tank |
| CN105253011A (en) * | 2015-11-06 | 2016-01-20 | 优利康达（天津）科技有限公司 | New type automobile gasoline tank and forming method thereof |
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| Publication number | Publication date |
|---|---|
| CN107914888A (en) | 2018-04-17 |
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