CN108332953B - A kind of internal pressure deformation of cylindrical matching test device for thermal protection structure - Google Patents
A kind of internal pressure deformation of cylindrical matching test device for thermal protection structure Download PDFInfo
- Publication number
- CN108332953B CN108332953B CN201710982911.2A CN201710982911A CN108332953B CN 108332953 B CN108332953 B CN 108332953B CN 201710982911 A CN201710982911 A CN 201710982911A CN 108332953 B CN108332953 B CN 108332953B
- Authority
- CN
- China
- Prior art keywords
- test
- tooling base
- test specimen
- protection structure
- thermal protection
- Prior art date
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
This application provides a kind of internal pressure deformation of cylindrical matching test device for thermal protection structure, which includes: the tooling base and press box for bearing test test specimen；The tooling base is equipped with test flume, and the test test specimen matches positioning with the test flume, and will test test specimen gland above the test flume by press box；Pressurization space is formed between the test test specimen and the test flume.Herein described technical solution can construct deformation of cylindrical condition on large scale thermal protection structure, and accurately control deformation of cylindrical amount, realize the evaluation to thermal protection structure internal pressure deformation of cylindrical matching performance.
Description
Technical field
This application involves aircraft performance analysis field more particularly to a kind of deformation of cylindrical matchings for thermal protection structure
Performance testing device.
Background technique
Currently, external hypersonic aircraft outer surface heat safeguard structure generally uses Rigid ceramic tile, due to its brittleness
Greatly, to meet requirement, scale is usually no more than 200mm, in general single rigid thermal insulation tile in the face of rigid thermal insulation tile
Multiple bulges will not be crossed over, and increase strain isolating pad to alleviate deformation matching problem, therefore external open source information is not also seen
To the open report tested in relation to such.Compared to the Rigid ceramic tile in the U.S., the anti-heat-insulation integrative heat that the country newly develops is anti-
Protection structure toughness more preferably, therefore thermal protection structure design when its face in out to out can reach 500mm-600mm, become large-sized
After directly result in monolithic thermal protection structure possible across multiple bulges, and make since thermal protection structure is directly bonded in cabin
With thus the matching of bring internal pressure deformation of cylindrical is more demanding, and deformation of cylindrical, which also becomes in thermal protection structure design process, to be needed
One of primary deformable mode of consideration, it is therefore desirable to which a kind of suitable experimental rig carries out evaluation to it.
Thermal protection structure belongs to brittle ceramic class material and has certain gas permeability, such as anti-to heat using conventional method
Protection structure directly (or hydraulic pressure) with air pressure capable of being increased uses the elastic string locally modes such as pulling, be easy to cause thermal protection structure local stress
It concentrates and causes to damage and can not obtain good controllable deformation bulge condition.
Summary of the invention
The embodiment of the present application proposes a kind of internal pressure deformation of cylindrical matching test device for thermal protection structure, to solve
Traditional experiment device can not be loaded directly into thermal protection structure or the uncontrollable problem of deformation of cylindrical amount.
One of to solve above-mentioned technical problem, this application provides a kind of internal pressure deformation of cylindrical for thermal protection structure
With experimental rig, which includes: the tooling base 3 and press box 1 for bearing test test specimen 2；
The tooling base 3 is equipped with test flume 5, and the test test specimen 2 matches positioning with the test flume 5, and passes through
Press box 1 will test 2 gland of test specimen above the test flume 5；
Pressurization space is formed between the test test specimen 2 and the test flume 5.
Preferably, the supporting plate that the test test specimen 2 includes: frame body and is fixed on frame body；Heat is fixed on the supporting plate
Safeguard structure 11.
Preferably, sealing ring 4 is equipped between the test test specimen 2 and the test flume 5；
The sealing ring 4 is placed in the seal groove on tooling base 3, is passed through between the tooling base 3 and test test specimen 2
The sealing ring 4 seals.
Preferably, the lower section of test test specimen 2 is located on the tooling base 3 equipped with close for accommodating the first of test circuit
Sealing plate 6；The bottom of the tooling base 3 and 6 corresponding position of the first sealing plate are equipped with the second sealing plate 10.
Preferably, the lower section that test test specimen 2 is located on the tooling base 3 is equipped with air inlet 7, gas outlet 8 and pressure and surveys
Measure at least one of the three of the above of mouth 9.
Preferably, the tooling base 3 and press box 1 are equipped with mounting hole；The mounting hole is passed through using fastener to fix
Tooling base 3 and press box 1.
Preferably, which further comprises: for providing the compression system of pressurization or pressure release operating condition for experimental rig.
Preferably, the compression system passes through the air inlet 7 respectively and gas outlet 8 is connected to the experimental rig.
Preferably, which further comprises: for carrying out the data measurin system of DATA REASONING to test.
Preferably, the data measurin system and the measurement connection being set in advance on test test specimen 2.
Beneficial effects of the present invention are as follows:
Herein described technical solution can construct deformation of cylindrical condition on large scale thermal protection structure, and accurately control
Deformation of cylindrical amount realizes the evaluation to thermal protection structure internal pressure deformation of cylindrical matching performance.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 shows schematic diagram described herein；
Fig. 2 shows schematic diagrames described herein.
Drawing reference numeral
1, press box, 2, test test specimen, 3, tooling base 3,4, the sealing ring being placed in seal groove, 5, test flume, 6, first
Sealing plate, 7, air inlet, 8, gas outlet, 9, pressure measurement mouth, the 10, second sealing plate, 11, thermal protection structure.
Specific embodiment
In order to which technical solution and the advantage of the application is more clearly understood, below in conjunction with attached drawing to the exemplary of the application
Embodiment is described in more detail, it is clear that and described embodiment is only a part of the embodiment of the application, rather than
The exhaustion of all embodiments.And in the absence of conflict, the feature in the embodiment and embodiment in this explanation can be mutual
It combines.
The core ideas of this programme is that thermal protection structure 11 is bonded on metal supporting plate, by frame body below supporting plate with
Groove body on tooling base 3, which matches, positions test test specimen 2；Seal groove on supporting plate and work base forms airtight
Box structure constructs different scale on thermal protection structure 11 by way of applying air pressure (or hydraulic pressure) into experimental rig
Deformation of cylindrical, and come accurately to control deformation of cylindrical amount by adjusting on-load pressure, realize to 11 internal pressure bulge of thermal protection structure
Deform the evaluation of matching performance.
This programme discloses a kind of internal pressure deformation of cylindrical matching test device for thermal protection structure 11, the device packet
It includes: tooling base 3 and press box 1 for bearing test test specimen 2.Test test specimen 2 is pressed on tooling base 3 by press box 1, is utilized
Fastener is fixed by press box 1 and tooling base 3.In the present solution, the tooling base 3 is equipped with test flume 5, the test test specimen
2 match positioning with the test flume 5, and will test 2 gland of test specimen above the test flume 5 by press box 1, the test examination
Pressurization space is formed between part 2 and the test flume 5.
In the present solution, test test specimen 2 consists of three parts, specifically include: frame body, supporting plate and thermal protection structure 11.It is described
Supporting plate is fixed on frame body, and thermal protection structure 11 is fixed on supporting plate by silicon rubber；Press box 1 by by supporting plate gland in tooling
On pedestal 3, the fixation to test test specimen 2 is realized.In design, test flume 5 thereon need to meet and can protect the tooling base 3
Card frame body freely enters and leaves.The thermal protection structure 11 being directed in this programme is monoblock type composite heat-insulating tile.In the present solution, needing to meet
The deformation of cylindrical amount of thermal protection structure 11 is the requirement of 1mm-2mm under different internal pressure conditions, therefore, in order to easy to process, easily
In use, the frame body selects cross reinforcing rib, and the test flume 5 on the tooling base 3 matches with the frame body
Cruciform groove.
In the present solution, the leakproofness in order to guarantee pressurization space, can contact in the inside of tooling base 3 with test test specimen 2
Position Design one enclose the seal groove for placing sealing ring 4, when test test specimen 2 be glanded on tooling base 3 when, utilization is close
The supporting plate and the sealing of tooling base 3 of sealing ring 4 and test test specimen 2 are fixed in sealing.
In the present solution, being located at test test specimen 2 on tooling base 3 for the ease of to experimental rig introducing or lead line
Lower section be arranged circular first sealing plate 6, first sealing plate 6 be equipped with multiple circular holes, for accommodating test wire
Road；Meanwhile the use in order to cooperate the first sealing plate 6, bottom and 6 corresponding position of the first sealing plate in tooling base 3
Circular second sealing plate 10 is arranged in place, and second sealing plate 10 is equipped with multiple circular holes, for accommodating test circuit.In order to
Guarantee that device leakproofness, first sealing plate 6 and the second sealing plate 10 and tooling base 3 are sealed connection, meanwhile, it is described
After putting on test circuit in the circular hole of first sealing plate 6 and the second sealing plate 10, silicone rubber seal is utilized.
In the present solution, be equipped with multiple mounting holes on tooling base 3 and press box 1 to guarantee the firm of device, using tight
Firmware passes through the mounting hole fixing tool pedestal 3 and press box 1, so that the firm gland of test specimen 2 will be tested in tooling base 3
On.
In the present solution, the lower section for being located at test test specimen 2 on the tooling base 3 is equipped with air inlet 7, gas outlet 8 and pressure
Power measuring mouth 9；Wherein, using air inlet 7 and gas outlet 8 and for providing the compression train of pressurization or pressure release operating condition for experimental rig
System connection；It is connect using pressure measurement mouth 9 with pressure gauge.For the data measurin system to test progress DATA REASONING and in advance
Measurement connection on test test specimen 2 is set.
Before on-test, silicon rubber is first used, monoblock type composite heat-insulating tile is Nian Jie with supporting plate, form test test specimen 2.?
It is bonded foil gauge and fixation measuring pipeline respectively on monoblock type composite heat-insulating tile surface, supporting plate on test test specimen 2.By tooling
Pedestal 3 is fixed on test bracket.After smearing silicon rubber on sealing ring 4, sealing ring 4 is bonded on tooling base 3, then will
Test test specimen 2 is placed on to seal on sealing ring 4 and fix, and makes tooling base 3, sealing ring 4 and the supporting plate formation pressurization for testing test specimen 2
Space；The strain measurement pipeline of the lower surface of test specimen 2 will be tested from the threading circular hole in the first sealing plate 6 and the second sealing plate 10
It wears out, and perfusion silicon rubber is sealed in threading circular hole.By 1 gland of press box in test 2 surrounding of test specimen, and pass through surrounding
Screw-driving is fixed on tooling base 3.By the admission line of compression system and outlet pipe respectively on tooling base 3 into
Port 7 and gas outlet 8 connect, and pressure gauge is connect with pressure measurement mouth 9.DATA REASONING pipeline and data measurin system are connected
It connects.When experimental rig works, pressure is applied into the pressurization space of device by compression system, is passed to pressure by supporting plate
Thermal protection structure 11, i.e., when the back side of supporting plate loads, thermal protection structure 11 can be with the common deformation of cylindrical of supporting plate.By preparatory
The reinforcing rib frame body of design realizes the requirement that deformation of cylindrical amount is 1mm-2mm under different internal pressure conditions.
This programme is further illustrated below by example.
It is a kind of suitable for analyzing 11 internal pressure deformation of cylindrical matching performance of hypersonic aircraft outer surface heat safeguard structure
Thermal protection structure 11 is bonded on supporting plate by silicon rubber, it can be achieved that supporting plate is in compressive deformation condition by experimental rig, this programme
Under, the matching with thermal protection structure 11 deforms；Further, the other side of supporting plate is provided with frame body, which can both make
For the reinforcing rib of supporting plate, and it can match with the groove body on tooling base 3 and be combined into test test specimen 2 and positioned.In the present solution, can
To be calculated in conjunction with numerical simulation, tentatively using structure, arrangement form and the reinforcing rib sectional dimension of reinforcing rib on test test specimen 2
The deformation of cylindrical amount under different internal pressure conditions is estimated, in this, as the control foundation of pressure loading during test.In design work
When filling pedestal 3, need to guarantee on pressure uniform load to supporting plate, to construct testpieces deformation of cylindrical condition；Control load pressure
The size of power can be realized the different degrees of deformation of cylindrical amount of thermal protection structure 11, and measure thermal protection structure under respective conditions
11 bulge displacement and strain parameter.
In this example, select RTV system silicon rubber as adhesive；The supporting plate preferable metal of selection intensity and toughness as far as possible
Material, such as titanium alloy, high-strength aluminum alloy；The thickness and reinforcing rib frame body arrangement form of supporting plate should primarily guarantee structure itself
It does not destroy, secondly meets the bulge displacement field Spreading requirements of simulation component, for simulating the deformation of 0.2MPa internal pressure, metal
Base plate thickness is typically chosen 3mm-5mm, the face inside dimension about 400mm-700mm of metal base plate, the corresponding thermal protection examined
11 face inside dimension of structure is 300mm-600mm；Supporting plate is surrounded by multiple through-holes, passes through through-hole for supporting plate and work using fastener
Dress pedestal 3 is fixedly connected；When test test specimen 2 is put into tooling base 3, need to guarantee that monoblock type composite heat-insulating tile and seal groove are viscous
Alignment is hit exactly when connecing, the testpieces after bonding can meet, and when the back side of supporting plate loads, thermal protection structure 11 can be total with supporting plate
Same deformation of cylindrical.
For the deflection requirement for needing bulge to be simulated, need to the arrangement of reinforcing rib frame body and sectional dimension into
Row Rational choice.In this example, reinforcing rib arrangement form selects the cross of simple easy processing, strengthening tendons width about 5mm-10mm,
Reinforcement height about 20mm-50mm, according to the size range of thermal protection structure 11300mm-600mm, ruler in corresponding bulge face
Degree is 150mm-300mm, constructs four equal sized bulges, and reinforcing rib can be in such a way that welding or integrated machine add and support
Plate is integrally formed.It can satisfy by the selection of reinforcing rib, deformation of cylindrical amount is 1mm-2mm under different internal pressure conditions.
In this example, experimental rig specifically includes that tooling base 3, sealing ring 4 and press box 1；Tooling base 3 be equipped with into/
Gas outlet 8 and corresponding pipeline etc..Wherein, the face inside dimension of tooling base 3 and press box 1 is consistent with metal base plate size；
When testing the installation of test specimen 2, it is fixed between tooling base 3 and press box 1 by screw by test specimen 2 is tested；Test test specimen 2 and tooling
Sealing ring 4 is installed between pedestal 3, smears silicone rubber for sealing in sealing ring 4, by sealing ring 4 and tooling base 3 and test test specimen 2
Sealing is fixed；The bottom of tooling base 3 reserves admission line, the corresponding opening of outlet pipe and pressure-measuring pipe road, when convenient for pressurization
Connect aerostatic press and on-load pressure measurement；The inside and outside design seal cover board of tooling base 3, is surveyed inside tooling base 3 for guiding
Measure the extraction and tooling sealing of spool (as strained).
It should be understood by those skilled in the art that, embodiments herein can provide as method, apparatus or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Although the preferred embodiment of the application has been described, once a person skilled in the art knows basic
Creative concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the application range.
Claims (9)
1. a kind of internal pressure deformation of cylindrical matching test device for thermal protection structure, which is characterized in that the device includes: to be used for
The tooling base (3) and press box (1) of bearing test test specimen (2)；
The tooling base (3) is equipped with test flume (5), and the test test specimen (2) matches positioning with the test flume (5), and
Test specimen (2) gland will be tested above the test flume (5) by press box (1)；
Pressurization space is formed between the test test specimen (2) and the test flume (5)；
It is located at the lower section of test test specimen (2) on the tooling base (3) equipped with the first sealing plate for accommodating test circuit
(6)；The bottom of the tooling base (3) and the first sealing plate (6) corresponding position are equipped with the second sealing plate (10), described
Multiple circular holes are equipped on first sealing plate (6) and the second sealing plate (10), for accommodating test circuit.
2. the apparatus according to claim 1, which is characterized in that the test test specimen (2) includes: frame body and is fixed on frame body
On supporting plate；Thermal protection structure (11) are fixed on the supporting plate.
3. the apparatus of claim 2, which is characterized in that between the test test specimen (2) and the test flume (5)
Equipped with sealing ring (4)；
The sealing ring (4) is placed in the seal groove on tooling base (3), between the tooling base (3) and test test specimen (2)
It is sealed by the sealing ring (4).
4. the apparatus according to claim 1, which is characterized in that be located under test test specimen (2) on the tooling base (3)
Side is equipped at least one of air inlet (7), gas outlet (8) and the three of the above of pressure measurement mouth (9).
5. the apparatus according to claim 1, which is characterized in that the tooling base (3) and press box (1) are equipped with installation
Hole；The mounting hole fixing tool pedestal (3) and press box (1) are passed through using fastener.
6. device according to claim 4, which is characterized in that the device further comprises: for being provided for experimental rig
The compression system of pressurization or pressure release operating condition.
7. device according to claim 6, which is characterized in that the compression system pass through respectively the air inlet (7) and
Gas outlet (8) is connected to the experimental rig.
8. device according to claim 1 or 5, which is characterized in that the device further comprises: for being counted to test
According to the data measurin system of measurement.
9. device according to claim 8, which is characterized in that the data measurin system and be set in advance in test test specimen
(2) the measurement connection on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982911.2A CN108332953B (en) | 2017-10-20 | 2017-10-20 | A kind of internal pressure deformation of cylindrical matching test device for thermal protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982911.2A CN108332953B (en) | 2017-10-20 | 2017-10-20 | A kind of internal pressure deformation of cylindrical matching test device for thermal protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108332953A CN108332953A (en) | 2018-07-27 |
| CN108332953B true CN108332953B (en) | 2019-02-15 |
Family
ID=62922509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710982911.2A Active CN108332953B (en) | 2017-10-20 | 2017-10-20 | A kind of internal pressure deformation of cylindrical matching test device for thermal protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108332953B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497714U (en) * | 2009-04-23 | 2010-06-02 | 中国飞机强度研究所 | Thermal protection test device capable of simulating height and pressure difference environment |
| CN105067662A (en) * | 2015-08-20 | 2015-11-18 | 吉林大学 | Thermal protective fabric simulation pressure squeezer for thermal protective performance tester |
| CN205157351U (en) * | 2015-12-06 | 2016-04-13 | 西安航天复合材料研究所 | Whole anti pressure test device of square structure of thin wall |
| CN106018104A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Sealing structure of stress loading device |
| CN106596003A (en) * | 2016-11-29 | 2017-04-26 | 中国航空工业集团公司沈阳飞机设计研究所 | Composite aircraft fuselage section pressurizing test method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2993984B1 (en) * | 2012-07-24 | 2014-08-01 | Ge Energy Products France Snc | DEVICE FOR MEASURING THE IMPERMEABILITY OF THE MEANS FOR SEALING A FILTER CARTRIDGE AND CORRESPONDING METHOD |
-
2017
- 2017-10-20 CN CN201710982911.2A patent/CN108332953B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201497714U (en) * | 2009-04-23 | 2010-06-02 | 中国飞机强度研究所 | Thermal protection test device capable of simulating height and pressure difference environment |
| CN105067662A (en) * | 2015-08-20 | 2015-11-18 | 吉林大学 | Thermal protective fabric simulation pressure squeezer for thermal protective performance tester |
| CN205157351U (en) * | 2015-12-06 | 2016-04-13 | 西安航天复合材料研究所 | Whole anti pressure test device of square structure of thin wall |
| CN106018104A (en) * | 2016-05-17 | 2016-10-12 | 重庆大学 | Sealing structure of stress loading device |
| CN106596003A (en) * | 2016-11-29 | 2017-04-26 | 中国航空工业集团公司沈阳飞机设计研究所 | Composite aircraft fuselage section pressurizing test method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108332953A (en) | 2018-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10859478B2 (en) | Biaxial load test specimen, biaxial load test apparatus, and biaxial load test method | |
| Costa et al. | An apparatus for mixed-mode fracture characterization of adhesive joints | |
| CN105509961B (en) | Automatic detecting device and method for large-array resistance strain gauge | |
| CN103926159B (en) | A kind of microbonding point device for testing creep resistance and using method | |
| CN106370153B (en) | Contact deformation and contact stress measurements apparatus and method between a kind of metal parts | |
| CN104019968A (en) | Testing system for testing fatigue performance of propeller blades | |
| CN104897392A (en) | Auricle loaded test method and loading system | |
| CN108332953B (en) | A kind of internal pressure deformation of cylindrical matching test device for thermal protection structure | |
| CN104198278A (en) | Anti-instability clamp for measuring compression performance of composite laminated board with central notch | |
| CN203929593U (en) | A kind of high-temperature high-pressure apparatus material corrosion comprehensive study experiment table reactor | |
| CN203465136U (en) | Assembling type true triaxial underground cavity simulation test device | |
| CN107589031B (en) | Check-up draws and presses reaction frame | |
| CN106680107B (en) | Multifunctional temperature-control double-cavity pressure chamber | |
| CN104807703A (en) | Airtight and compression loading test device of bent plate | |
| CN207396148U (en) | Adhesive tensile shear sample preparation clamping | |
| CN217688199U (en) | In-situ gas film pressurizing device for diamond anvil cell press | |
| CN110174314A (en) | High-pressure heater tube side inner wall plastic strain appraisal procedure | |
| CN105179404B (en) | Large-scale tank low-temperature test strain gauge pastes solidification pressue device | |
| CN109238892A (en) | A kind of rotor-support-foundation system endless-ringlock bullet branch Structural Strength Design and on-line monitoring method | |
| CN208239192U (en) | A kind of Gleeble testing machine plate tensile sample stretching experiment fixture | |
| CN105823584A (en) | Apparatus for measuring concrete shearing strength by using single-shearing-plane Z-shaped test piece method | |
| CN206876357U (en) | Hermetically sealed testboard for car air filtering core assembly | |
| CN105466607A (en) | Transformer coil short-circuit mechanical force test system and test method thereof | |
| CN110441047A (en) | It is a kind of that ring test switching device is obturaged based on corrugated ring | |
| CN219475231U (en) | Flexible uniform distribution loading device and geomechanical model test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |