CN101629867B - Protector for wing-surface test model - Google Patents
Protector for wing-surface test model Download PDFInfo
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- CN101629867B CN101629867B CN2009101469468A CN200910146946A CN101629867B CN 101629867 B CN101629867 B CN 101629867B CN 2009101469468 A CN2009101469468 A CN 2009101469468A CN 200910146946 A CN200910146946 A CN 200910146946A CN 101629867 B CN101629867 B CN 101629867B
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- wing
- aerofoil
- gusset plate
- test model
- protector
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Abstract
The invention relates to a protector for a wing-surface test model, consisting of two reinforcing plates (4) symmetrically installed at both sides of a wing-surface reinforcing rib(1), and a plurality of bolts (2) and nuts for fastening the reinforcing plates. The centre of the reinforcing plate (4) is provided with one through hole through which a wing-surface main beam (3) passes, a plurality of screw holes are symmetrically arranged around the reinforcing plate (4), the screw holes of the reinforcing plate (4) correspond to screw holes of the wing-surface reinforcing rib, the bolt (2) passes through the screw holes of the reinforcing plate (4) and the wing-surface reinforcing rib (1) and is tightly locked by the nuts, wherein the weight of the reinforcing plate (4) is 5% to 25% of that of a wing surface. The protector for the wing-surface test model can effectively reduce the breakage of the reinforcing rib in a wood frame of the wing-surface test model in a tunnel test, improve the safety of the wing-surface test model and reduce the test cost; furthermore, the invention has simple structure, convenient installation, reliable performance, wide practicability and higher use value.
Description
Technical field
The present invention relates to a kind of aerofoil protective device, particularly about a kind of protective device of aircraft aerofoil low speed flutter wind tunnel test model.
Background technology
The flutter model wind tunnel test is an excessive risk pilot project, and in actual wind tunnel test, the connectivity robustness of the wooden frame section of aerofoil model inner airfoil surface stiffening rib and girder is depended in the security of wing-surface test model.
In the aircraft aerofoil flutter test of single-spar construction pattern, stiffening rib in the wooden frame section of aerofoil model is a wooden structures, be to process by the aviation laminate, and the girder of wing-surface test model is processed by the metallic aluminium prepared material, and described aluminum girder crosses stiffening rib and realizes being adhesively fixed between the two by epoxy resin.
Yet because girder is different with the material of stiffening rib, the hardness and the intensity of the aviation laminate of stiffening rib are significantly less than the aluminium girder.Therefore in wind tunnel test, owing to reasons such as vibration very easily cause occurring between wooden stiffening rib and the metal girder loosening, and cause wooden frame section aerofoil profile to damage even damage, also make that whole wing-surface test model is impaired simultaneously and can't use, thereby influence normally carrying out of wind tunnel test.
Therefore the prior art wing-surface test model damages in wind tunnel test easily, less reliable, and security is low, and owing to the wing-surface test model rapid wear, active loss is bigger, has improved experimentation cost simultaneously.
Summary of the invention
In order to solve the problem that the prior art wing-surface test model is subject to, the invention provides a kind of protector for wing-surface test model that can make that wing-surface test model is not fragile in wind tunnel test, improve its safe reliability.
In order to solve the problems of the technologies described above; the invention provides following technical scheme: a kind of protector for wing-surface test model; it is symmetrical arranged the gusset plate of aerofoil stiffening rib both sides by two and some screw bolt and nut of fastening gusset plate are formed; described gusset plate center has a through hole that can supply the aerofoil girder to pass; be symmetrical arranged some screws around the described gusset plate; the screw of described gusset plate is corresponding mutually with screw on the aerofoil stiffening rib; described bolt passes the screw on gusset plate and the aerofoil stiffening rib; and fix by nut lock; wherein, described gusset plate weight is 5% to 25% of aerofoil weight.
Wherein, described gusset plate weight is 15% of aerofoil weight.
Described gusset plate material is consistent with aerofoil model girder material.
Described gusset plate is a rectangle, and described screw is symmetricly set on four jiaos of described gusset plates.
Described gusset plate is that circle, ellipse or its shape are consistent with aerofoil stiffening rib cross sectional shape.
Described gusset plate through hole and girder section consistent size, and be rectangle or square.
Unprotect measure when being different from the wind tunnel test of prior art wing-surface test model, the present invention adds the gusset plate consistent with the girder material in wing-surface test model stiffening rib both sides, and with bolt and epoxy resin gusset plate and aerofoil stiffening rib is fixed.Thereby in wind tunnel test, avoid becoming flexible between interior stiffening rib of the wooden aerofoil profile frame of aerofoil model section and the girder effectively, the reliability and the security of wing-surface test model have been improved, guarantee carrying out smoothly of wind tunnel test, reduced the loss of the wing-surface test model in the test simultaneously, reduce experimentation cost, had bigger economic worth and actual use value.
Description of drawings
Fig. 1 is the structural representation of protector for wing-surface test model one better embodiment of the present invention;
Fig. 2 is the side view of Fig. 1;
Wherein, 1-stiffening rib, 2-bolt, 3-girder, 4-gusset plate.
Embodiment
See also Fig. 1 and Fig. 2, it is respectively the structural representation and the corresponding side view of protector for wing-surface test model one better embodiment of the present invention.Wherein, described protector for wing-surface test model comprises two gusset plates 4 and some bolts 2 and nut.In the present embodiment, described reinforcing 4 plates are a rectangle aluminium sheet, and its material is identical with aerofoil model girder 3, and its center is provided with the through hole that passes for aerofoil model girder 3.Described gusset plate is symmetrical arranged four screws for 4 four jiaos, and the screw of described gusset plate 4 is corresponding mutually with screw hole dimensions, position and screw thread on the aerofoil stiffening rib 1.Described gusset plate 4 passes girder 3 and is symmetricly set on the both sides of aerofoil stiffening rib 1, and passes screw on gusset plate 4 and the aerofoil stiffening rib 1 by bolt 2, and fixes by nut lock.
Wherein, the through hole of described gusset plate 4 is a rectangle, and size is consistent with girder 3 cross sections, and this is because rectangle girder 3 makes in wind tunnel test, and is more firm between aerofoil stiffening rib 1 and the girder 3, is difficult for loosening.And be bonded with epoxy resin between girder 3 and gusset plate 4 through holes, be beneficial to improve the fastness of the two connection.
In addition, because gusset plate 4 is used for fastening wooden stiffening rib 1, make it in wind tunnel test, be difficult for loose or dislocation, so gusset plate 4 weight can not be too low, otherwise fastening effect is undesirable.Simultaneously,,, then cause test model overweight, can not satisfy trystate, influence the accuracy of wind tunnel test data, can't obtain the legitimate reading of wind tunnel test if gusset plate 4 is too heavy because the aerofoil model wind tunnel test has strict regulation to test model weight.For this reason, in the present embodiment, gusset plate 4 weight of taking are that 15%, two gusset plate 4 weight of wooden aerofoil weight then are 30% of wooden aerofoil weight.Yet, according to actual aerofoil size, gusset plate 4 weight can aerofoil weight 5% to 25% in adjust.And the present invention do not do significant limitation to gusset plate 4 shapes, and in the present embodiment, described gusset plate 4 is a rectangle, and it also can be circle, ellipse or consistent with the cross sectional shape of aerofoil stiffening rib.
Protector for wing-surface test model of the present invention is by gusset plates 4 fastening in aerofoil stiffening rib 1 both sides and girder 3 identical materials; make gusset plate 4 and aerofoil stiffening rib 1 form a new stiffening rib; thereby the intensity and the hardness of aerofoil stiffening rib 1 have been improved; protect the wooden aerofoil profile frame section of aircraft wing low speed flutter wind tunnel test model effectively, make it be difficult for impaired destruction.
And in actual wind tunnel test, do not take the wooden aerofoil aerofoil profile frame section stiffening rib of safeguard measure, repeatedly take place in process of the test and between the girder to become flexible, and cause aerofoil profile frame section to damage, even a whole set of model in wind tunnel is damaged.And when on the wing-surface test model stiffening rib 1 gusset plate 4 being set, in finishing the whole process of all test subjects, take place between described wing-surface test model stiffening rib 1 and the girder 3 to become flexible, whole model remains intact.Therefore described gusset plate has greatly improved the reliability of wing-surface test model, has reduced the test loss, has saved experimentation cost.
Protector for wing-surface test model of the present invention in sum can reduce the damage that stiffening rib is subjected in the wooden aerofoil profile frame of the aerofoil section effectively in wind tunnel test; improve the security of aircraft aerofoil low speed flutter wind tunnel test model; reduce experimentation cost greatly; described protector for wing-surface test model is simple in structure simultaneously; easy for installation; with low cost, dependable performance has bigger actual use value.
Claims (6)
1. protector for wing-surface test model; it is characterized in that: be symmetricly set on the gusset plate (4) of aerofoil stiffening rib (1) both sides and the some bolts (2) and the nut of fastening gusset plate formed by two; described gusset plate (4) center has a through hole that can supply aerofoil girder (3) to pass; described gusset plate (4) is symmetrical arranged some screws all around; the screw of described gusset plate (4) is corresponding mutually with screw on the aerofoil stiffening rib; described bolt (2) passes the screw on gusset plate (4) and the aerofoil stiffening rib (1); and fix by nut lock; wherein, described gusset plate (4) weight is 5% to 25% of aerofoil weight.
2. protector for wing-surface test model according to claim 1 is characterized in that: described gusset plate (4) weight is 15% of aerofoil weight.
3. protector for wing-surface test model according to claim 1 is characterized in that: described gusset plate (4) material is consistent with aerofoil girder (3) material.
4. protector for wing-surface test model according to claim 1 is characterized in that: described gusset plate (4) is a rectangle, and described screw is symmetricly set on (4) four jiaos of described gusset plates.
5. protector for wing-surface test model according to claim 1 is characterized in that: described gusset plate (4) is consistent with aerofoil stiffening rib (1) cross sectional shape for circle, ellipse or its shape.
6. protector for wing-surface test model according to claim 1 is characterized in that: described gusset plate (4) through hole is consistent with aerofoil girder (3) sectional dimension, and is rectangle or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101469468A CN101629867B (en) | 2009-06-05 | 2009-06-05 | Protector for wing-surface test model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101469468A CN101629867B (en) | 2009-06-05 | 2009-06-05 | Protector for wing-surface test model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101629867A CN101629867A (en) | 2010-01-20 |
| CN101629867B true CN101629867B (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101469468A Active CN101629867B (en) | 2009-06-05 | 2009-06-05 | Protector for wing-surface test model |
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| Country | Link |
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| CN (1) | CN101629867B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926049A (en) * | 2014-04-30 | 2014-07-16 | 中国航天空气动力技术研究院 | Fin and wing aeroelasticity test device of high-speed wind tunnel |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893504B (en) * | 2010-07-20 | 2013-03-06 | 中国航空工业集团公司西安飞机设计研究所 | Stiffening rib of flight vehicle aerofoil experimental model |
| CN109870289B (en) * | 2019-04-11 | 2024-04-09 | 中国空气动力研究与发展中心高速空气动力研究所 | T-shaped horizontal tail flutter model protection device and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29709666U1 (en) * | 1997-06-03 | 1997-10-09 | Lauks, Robert, 22397 Hamburg | Model reinforcement plate for receiving model pens |
| CN1460763A (en) * | 2003-06-13 | 2003-12-10 | 郑州长建工程技术开发有限公司 | Steel plate externally-rived stengthening method for reinforced concrete structure and its special-purpose rivet |
| CN1607300A (en) * | 2003-04-25 | 2005-04-20 | 新日本制铁株式会社 | Joint structure of structure using gusset plate and the building |
| FR2918596A1 (en) * | 2007-07-10 | 2009-01-16 | Nicolas Claye | Construction model for forming e.g. platform, has reinforcement introduced into hollow plastic piece through hole located on side of piece, and bore provided on external pattern for fixing reinforcement using pin or screw |
-
2009
- 2009-06-05 CN CN2009101469468A patent/CN101629867B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29709666U1 (en) * | 1997-06-03 | 1997-10-09 | Lauks, Robert, 22397 Hamburg | Model reinforcement plate for receiving model pens |
| CN1607300A (en) * | 2003-04-25 | 2005-04-20 | 新日本制铁株式会社 | Joint structure of structure using gusset plate and the building |
| CN1460763A (en) * | 2003-06-13 | 2003-12-10 | 郑州长建工程技术开发有限公司 | Steel plate externally-rived stengthening method for reinforced concrete structure and its special-purpose rivet |
| FR2918596A1 (en) * | 2007-07-10 | 2009-01-16 | Nicolas Claye | Construction model for forming e.g. platform, has reinforcement introduced into hollow plastic piece through hole located on side of piece, and bore provided on external pattern for fixing reinforcement using pin or screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926049A (en) * | 2014-04-30 | 2014-07-16 | 中国航天空气动力技术研究院 | Fin and wing aeroelasticity test device of high-speed wind tunnel |
| CN103926049B (en) * | 2014-04-30 | 2016-05-11 | 中国航天空气动力技术研究院 | High-speed wind tunnel rudder aerofoil aeroelastic effect test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101629867A (en) | 2010-01-20 |
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