CN104696513B - A kind of fuselage wallboard encapsulating method - Google Patents
A kind of fuselage wallboard encapsulating method Download PDFInfo
- Publication number
- CN104696513B CN104696513B CN201310660246.7A CN201310660246A CN104696513B CN 104696513 B CN104696513 B CN 104696513B CN 201310660246 A CN201310660246 A CN 201310660246A CN 104696513 B CN104696513 B CN 104696513B
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- canvas
- packing cloth
- cloth
- testpieces
- packing
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Classifications
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention provides a kind of fuselage wallboard encapsulating method, is easy to paste, even and if breakage also allows for repairing.Technical scheme includes：More than one piece canvas（2）Outer surface sticks with glue on testpieces sealing area, then by more than one piece packing cloth（4）Stick with glue in canvas（2）Inner surface on；Canvas（2）With canvas（2）Between junction docking, packing cloth（4）With packing cloth（4）Between junction overlap paste, packing cloth（4）A tubular is surrounded, by packing cloth（4）Away from testpieces（1）Side formed opening sealing；Testpieces is bonded canvas（2）And packing cloth（4）Side be buckled in down support back box on.
Description
Technical field
The invention belongs to strength of aircraft experimental technique, it is related to the encapsulating method in a kind of airframe wall strength experiment.
Background technology
Fuselage wallboard experiment is an important content in airplane ground test.Truly to simulate the loading conditions of fuselage,
Fuselage internal pressure need to generally be considered, therefore fuselage wallboard need to be sealed, then applied internal pressure with inflation or water-filling mode.Fuselage wall
Plate is shown in Fig. 1 by internal pressure schematic diagram.
Sealing is generally realized by the way of 5mm rubber slabs are adhered on test specimen at present.Because rubber slab can not be bent；Only
The bonding method of outward flanging can be used；And it can not accomplish to be in close contact with test specimen, need to be connected with bolt with test specimen；It can not repair
Mend.Rubber can gradually be departed from, ultimately resulting in experiment can not continue due to the effect of load with wallboard during loading.And
And once there is local damage or departed from test specimen in rubber slab, can not all repair, need to re-work rubber slab, and by former rubber
Plate is removed from test specimen, and connecting portion of polishing, re-paste new rubber slab to test specimen could continue experiment.Pasting needs specially
Industry personnel are carried out with special glue, and the flatness requirement of surface of test piece polishing is high.Former encapsulating method is shown in Fig. 2.
The content of the invention
Goal of the invention：A kind of fuselage wallboard encapsulating method is provided, is easy to paste, even and if breakage also allows for repairing.
Technical scheme：A kind of fuselage wallboard encapsulating method, including：
More than the one piece outer surface of canvas 2 is sticked with glue on test specimen sealing area, then more than one piece packing cloth 4 is used into glue
On the inner surface for being pasted onto canvas 2；
Docked between canvas 2 and canvas 2 in junction, in junction, overlap joint is viscous between packing cloth 4 and packing cloth 4
Patch, packing cloth 4 surrounds a tubular, and the opening that side of the packing cloth 4 away from testpieces 1 is formed is sealed；
The side that test specimen is bonded into canvas 2 and packing cloth 4 is buckled in support back box down.
Further, it is used as packing cloth using B-272；Packing cloth one side is cloth face, and another side is gum surface, is being pasted
When choose cloth face and be used as sticking veneer and test specimen to paste.
Canvas 2 and packing cloth 4 are using the sealing means to in-flanges.
Paste medium is used as with 309 glue.
Preferably, it is further comprising the steps of：
If breakage occurs in packing cloth 4, cloth sealing together is cut, is mended with 309 glue in breakage.
Beneficial effect：
1）Sealing effectiveness is improved, realizes that sealing once completes the fatigue test of 15.4 ten thousand circulations.Sealing side in the past
Method can be only done the fatigue test less than 20,000 circulation.
2）If packing cloth breakage only needs sectional repair, 2 day time is only needed；If breakage occurs in sealed bladder in the past, need whole
Individual replacing sealed bladder, is at least needed half month.
3）Connected without bolt presses, it is convenient to implement；Punched without on testpieces again, protect testpieces；
4）Proving this by experiment, encapsulating method science is feasible, meet engineering test requirement.
Brief description of the drawings
Fig. 1 is testpieces stress diagram of the present invention.
Fig. 2 is former encapsulating method schematic diagram.
Fig. 3 is fuselage wallboard encapsulating method schematic diagram of the present invention；
Wherein：1- testpieces, 2- canvases, 3- supports back box, 4- packing cloths.
Fig. 4 is test specimen of the present invention and inner seal region.
Fig. 5 pastes canvas schematic diagram for the present invention.
Fig. 6 is that packing cloth of the present invention is pasted into a tubular schematic diagram.
Fig. 7 is that packing cloth of the present invention seals schematic diagram.
Fig. 8 is schematic diagram after the completion of present invention sealing.
Fig. 9 is the experiment curv in present invention experiment.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of fuselage wallboard encapsulating method that the present invention is provided, as shown in figure 3, including：
Step 1, more than the one piece outer surface of canvas 2 are sticked with glue on test specimen sealing area, then more than one piece is sealed
Cloth 4 sticks with glue on the inner surface of canvas 2；
Dock, taken between packing cloth 4 and packing cloth 4 in junction in junction between step 2, canvas 2 and canvas 2
Stickup is connect, packing cloth 4 surrounds a tubular, the opening that side of the packing cloth 4 away from testpieces 1 is formed is sealed；
Step 3, test specimen is bonded the side of canvas 2 and packing cloth 4 be buckled in down in support back box.
Further, it is used as packing cloth using B-272；Packing cloth one side is cloth face, and another side is gum surface, is being pasted
When choose cloth face and be used as sticking veneer and test specimen to paste.
Canvas 2 and packing cloth 4 are using the sealing means to in-flanges.
Paste medium is used as with 309 glue.
Preferably, it is further comprising the steps of：
If breakage occur in step 4, packing cloth 4, cloth sealing together is cut, is mended with 309 glue in breakage.
The testpieces for carrying out fuselage wallboard pressurising experiment is provided by testing consigner, generally containing a number of frame, stringer
（Containing 7 stringers, 5 frames in this example）.Testpieces is shown in Fig. 1 only by inner pressuring load.On the test specimen changeover portion of region loading internally
Have a circle it is continuous, smooth, for adhesive seal cloth reserve sealing area, see Fig. 4.First canvas is pasted onto on test specimen
Sticking area, with sticking area boundary alignment inside test specimen, the length of other side should be shown in than supporting the height of back box bigger
Fig. 5.The girth that position one is enclosed, and lap width when increasing sealing are pasted in measurement, are cut out one section of 10m of packing cloth to this experiment, are examined
Consider test specimen sealing area, need two packing cloths.First the packing cloth of two 10m length gluing is sticked together with 309（Paste width
200mm）, cloth face sticky cloth matter face, as a 10m length, rectangle wide 1.8m.Since in the middle part of straight flange, by strip
Packing cloth is chosen cloth face and is pasted onto on the canvas pasted with test specimen, and corner will smear inside and outside packing cloth and be folded after 309 glue,
Ensure to occur without gas leakage.Finally sealed cloth junction is overlapped, and is formed a tubular, is seen Fig. 6.Finally by 309 glues of opening,
Containment pockets are formed, Fig. 7 is seen.In both sides curl precalculated position, inlet, outlet is arranged, around sealing will be enclosed with 309 glues one
Cloth, which is realized, strengthens sealing.Test specimen is overturn, is placed in support back box.The testpieces that sealing is completed is shown in Fig. 8.Filled during loading to inside
Gas applies internal pressure load, and two straight flange passive bounds hold test specimen.
The strain that 8 foil gauges are measured on border in experiment with internal pressure change curve as shown in figure 9, maximum absolute error ±
50 μ ε, maximum relative error 8.63%.And during 15.4 ten thousand cycling fatigue experiments are completed, do not repaired.It is real
Packing cloth does not have breakage on border, and experiment can continue, but has completed the cycle-index of test requirements document, therefore off-test.
Embodiment
A kind of embodiment of fuselage wallboard encapsulating method of the present invention, as shown in figure 3, including testpieces 1, canvas 2,
Support back box 3, packing cloth 4.Wherein, canvas 2 is existed with 309 glues on test specimen, then by the glue of use 309 of packing cloth 4
On canvas 2.Canvas 2 is docked in junction.Packing cloth 4 is overlapped in junction to be pasted, and forms a tubular, finally will
The opening sealing of the opposite side formation of packing cloth 4.Finally test specimen is buckled in support back box.
A part for the fuselage wallboard that the testpieces provides for experiment consigner, and include loading changeover portion.It should reserve
Sealing area.
The packing cloth is that B-272 thickness is no more than 0.2mm, can arbitrarily be bent.It is commercially available.
The canvas is sailcloth, is pasted onto on testpieces, because it is thick and soft, can be tight with the testpieces 1 of metal
It is close to paste；Also can closely it be pasted with relatively thin packing cloth 4 in addition.It is commercially available.
The support back box can be designed using conventional Q235 steel according to the radius of testpieces, size, on the one hand be played pair
The supporting role of test specimen, another aspect restricted charging amount protects the safety of packing cloth.
Claims (5)
1. a kind of fuselage wallboard encapsulating method, it is characterised in that including：
More than one piece canvas (2) outer surface sticks with glue on testpieces sealing area, then more than one piece packing cloth (4) is used
Glue is on the inner surface of canvas (2)；
Dock, overlapped between packing cloth (4) and packing cloth (4) in junction in junction between canvas (2) and canvas (2)
Paste, packing cloth (4) surrounds a tubular, the opening that side of the packing cloth (4) away from testpieces (1) is formed is sealed；
The side that testpieces is bonded into canvas (2) and packing cloth (4) is buckled in support back box (3) down.
2. fuselage wallboard encapsulating method according to claim 1, it is characterised in that packing cloth one side is cloth face, another
Face is gum surface, and cloth face is chosen when pasting and is pasted as sticking veneer and testpieces.
3. fuselage wallboard encapsulating method according to claim 1, it is characterised in that canvas (2) and packing cloth (4) are used
To the sealing means of in-flanges.
4. fuselage wallboard encapsulating method according to claim 1, it is characterised in that be used as paste medium with 309 glue.
5. fuselage wallboard encapsulating method according to claim 1, it is characterised in that also include：
If damaged, cutting cloth sealing together occurs in packing cloth (4), mended with 309 glue in breakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660246.7A CN104696513B (en) | 2013-12-06 | 2013-12-06 | A kind of fuselage wallboard encapsulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660246.7A CN104696513B (en) | 2013-12-06 | 2013-12-06 | A kind of fuselage wallboard encapsulating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696513A CN104696513A (en) | 2015-06-10 |
| CN104696513B true CN104696513B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310660246.7A Active CN104696513B (en) | 2013-12-06 | 2013-12-06 | A kind of fuselage wallboard encapsulating method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388002B (en) * | 2015-10-13 | 2019-03-08 | 中国飞机强度研究所 | A kind of fuselage wallboard pressurising experimental rig |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2156349Y (en) * | 1993-03-03 | 1994-02-16 | 史忆 | Sealing joint structure for air sealing type apparatus |
| CN102288481A (en) * | 2011-07-08 | 2011-12-21 | 中国飞机强度研究所 | Vacuumizing loading equipment and test method thereof |
| CN103149075A (en) * | 2012-12-10 | 2013-06-12 | 中国飞机强度研究所 | Strength testing device and testing method for fuselage wall plate under action of combined loads |
| CN103434634A (en) * | 2013-08-27 | 2013-12-11 | 北京航空航天大学 | High-strength fiber reinforcement thin film sealing butt-joint structure universal for high altitude airship |
| CN203784298U (en) * | 2014-04-25 | 2014-08-20 | 中石化第十建设有限公司 | Sealing equipment for LNG full containment tank in dome roof air blowing top jacking process |
-
2013
- 2013-12-06 CN CN201310660246.7A patent/CN104696513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2156349Y (en) * | 1993-03-03 | 1994-02-16 | 史忆 | Sealing joint structure for air sealing type apparatus |
| CN102288481A (en) * | 2011-07-08 | 2011-12-21 | 中国飞机强度研究所 | Vacuumizing loading equipment and test method thereof |
| CN103149075A (en) * | 2012-12-10 | 2013-06-12 | 中国飞机强度研究所 | Strength testing device and testing method for fuselage wall plate under action of combined loads |
| CN103434634A (en) * | 2013-08-27 | 2013-12-11 | 北京航空航天大学 | High-strength fiber reinforcement thin film sealing butt-joint structure universal for high altitude airship |
| CN203784298U (en) * | 2014-04-25 | 2014-08-20 | 中石化第十建设有限公司 | Sealing equipment for LNG full containment tank in dome roof air blowing top jacking process |
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| Publication number | Publication date |
|---|---|
| CN104696513A (en) | 2015-06-10 |
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