CN203658073U - Flame-heated type thermal noise combined environment test apparatus - Google Patents
Flame-heated type thermal noise combined environment test apparatus Download PDFInfo
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- CN203658073U CN203658073U CN201320678867.3U CN201320678867U CN203658073U CN 203658073 U CN203658073 U CN 203658073U CN 201320678867 U CN201320678867 U CN 201320678867U CN 203658073 U CN203658073 U CN 203658073U
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Abstract
The utility model relates to a force and heat combined environment test apparatus and specifically relates to a flame-heated type thermal noise combined environment test apparatus comprising a travelling wave tube noise apparatus (1), a noise measurement and control system (8) and a thermal test apparatus. The flame-heated type thermal noise combined environment test apparatus is used for conducting a thermal noise combined environment test on a piece to be tested, and the thermal test apparatus is heated through flames. Methane and oxygen are used for flame generation. The thermal test apparatus comprises a combustion gas storage system (5), a flame pipe-line system (4), flame-heated guns (3), a flame control system (6), flame monitors (2), a flame-heated gun installation plate (7) and a temperature test system. The flame-heated type thermal noise combined environment test apparatus can be used for thermal combined environment performance examination tests conducted on large-area thermal protection systems of a hypersonic flight vehicle wing rudder structure and a repeatedly usable vehicle, the flame-heated type thermal noise combined environment test apparatus can also be used for a thermal noise performance examination conducted on a skin wallboard structure of an supersonic speed aviation flight vehicle, and the flame-heated type thermal noise combined environment test apparatus has wide application prospect in aspects of flight vehicle structure optimization and thermal noise combined environment examinations.
Description
Technical field
The utility model relates to the hot compound environmental tester of power, belongs to Vehicle Structure Strength and environmental assessment technical field, for the thermonoise combinational environment ground device cruises or the process that reenters faces.
Background technology
High Mach number aircraft, Control System for Reusable Launch Vehicle etc. are standing the harsh combinational environment such as Aerodynamic Heating, noise in cruising and reentering process, as the high sound intensity noise being produced by propulsion system/boundary layer, regional area exceedes 170dB, owing to cruising for a long time in atmospheric envelope, large area thermal protection system temperature exceedes 1000 DEG C, and local temperature can reach more than 2000 DEG C.Under high sound intensity noise long duration of action, can there is fatigure failure in Flight Vehicle Structure.Aerodynamic Heating environment change thermophysical parameter and the mechanical property of Flight Vehicle Structure, non-uniform temperature field produces thermal stress will affect the rigidity of structure, initiation structure generation flexing, under noise acting in conjunction, has accelerated the thermonoise fatigure failure of Flight Vehicle Structure.The Metallic Thermal Protection Systems of hypersonic aircraft, heat-proof tile structure, wing rudder structure etc., in optimal design and Performance Assessment, all need to carry out thermal environment temperature and exceed the thermonoise combinational environment demonstration test of 1000 DEG C.
For single noise circumstance and thermal environment simulation equipment aspect, domestic correlative study is more.Wherein the ground-based simulation equipment of single noise circumstance mainly contains reverberation chamber and travelling-wave tube.Reverberation chamber noise device is mainly used in simulating reverberant field, for the sound transmission test of instrument room section.Travelling-wave tube noise device is used for simulating Traveling wave, is mainly used in fatigue resistance assessment, the resistance to sound function test of airborne equipment and the resistance to acoustic fatigue test of aircraft wall panel structure.For the simulation of single thermal environment, be mainly at present to adopt the radiation heating method that quartz lamp is basic heating element.
The domestic report about thermonoise compound environmental tester is less, external existing thermonoise combined environment testing equipment, the travelling-wave tube noise unit simulation acoustic loads that adopt more, adopt quartz lamp radiation heater simulation thermal environment, quartz lamp heater is arranged on respectively on two sidewalls that travelling-wave tube test section is relative with testpieces.The problem that exists heating efficiency deficiency and heating efficiency to decline when employing quartz lamp heater as heating arrangement in thermonoise combined environment testing, be in particular in: the distance of quartz lamp heater and testpieces exceedes 30cm, much larger than the distance of well heater in quiet heat test and testpieces, while causing the quartz lamp efficiency of heating surface than quiet heat test, reduce more than 70%, make the heating-up temperature of testpieces generally lower than 1000 DEG C; Under very noisy effect, quartz lamp heater can occur that lamp wall breaks and the phenomenon such as filament breakage, causes heating efficiency further to reduce, and it is constant that testpieces temperature cannot keep; In addition, quartz lamp heater is highly energy-consuming equipment, and test site power supply capacity is had relatively high expectations, and the difficulty that causes test to be implemented is larger.
Demand for High Mach number Flight Vehicle Structure to thermonoise combinational environment demonstration test, the utility model provides a kind of test unit of flame heating hot noise combinational environment simulation, it has solved the technical barrier that in thermonoise combined environment testing, quartz lamp heating efficiency is not enough and heating efficiency declines, simulation when can realizing Flight Vehicle Structure surface heat environment and exceed the thermonoise combinational environment of 1000 DEG C, for the Structural Reliability Evaluation under Flight Vehicle Structure thermonoise combinational environment provides a kind of test examination means.
Utility model content
The purpose of this utility model is to provide a kind of flame heating hot noise compound environmental tester, it solves the technical barrier that quartz lamp heater heating efficiency is not enough and heating efficiency declines in thermonoise combined environment testing, for the Structural Reliability Evaluation under Flight Vehicle Structure thermonoise combinational environment provides a kind of examination means.
A kind of flame-type thermonoise compound environmental tester of the present utility model, comprises travelling-wave tube noise device, noise measuring system and heat test device, and for to being carried out thermonoise combined environment testing by test specimen, wherein, heat test device is flame-type heating.
Flame-type thermonoise compound environmental tester as above, wherein, uses methane and oxygen to produce flame.
Flame-type thermonoise compound environmental tester as above, wherein, described heat test device comprises: gas storage system, flame pipe system, flame heating gun, FCS, flame monitor, flame heating gun installing plate, Research on Automatic Measuring System of Temperature; Flame heating gun is arranged on travelling-wave tube sidewall by flame heating gun installing plate, and extend into travelling-wave tube inside, for flame heating gun, arranges 2 flame monitors in overdraught direction and downstream direction; Under the control of FCS, provide methane and oxygen gas by flame pipe system to flame heating gun by gas storage system; Described Research on Automatic Measuring System of Temperature comprises temperature sensor and signal conditioner, tests by the temperature of test specimen, and detecting information is outputed to FCS, for controlling the size of flame.
Flame-type thermonoise compound environmental tester as above, wherein, described flame-type thermonoise compound environmental tester comprises 9 heating guns, and heating gun adopts 3 × 3 arrays to arrange, and testpieces is heated.
Flame-type thermonoise compound environmental tester as above, wherein, described flame pipe system comprises respectively 9 road methane pipelines and 9 road oxygen pipelines, and each heating gun is connected with oxygen pipeline with independent methane pipeline respectively; Described FCS, comprises 18 road operation circuits, and each circuit is independently controlled 1 road methane pipeline or 1 road oxygen pipeline.
Flame-type thermonoise compound environmental tester as above, wherein, described Research on Automatic Measuring System of Temperature adopts infrared point temperature instrument to test.
Flame-type thermonoise compound environmental tester as above, wherein, the front end of described flame detector comprises hurricane globe, and flame detector carries out continuous detecting to combustion flame.
Flame-type thermonoise compound environmental tester as above, wherein, in described travelling-wave tube inner side, is covered with rigidity heat shield at test section.
The technical solution of the utility model is to adopt travelling-wave tube unit simulation noise circumstance, adopts flame type of heating simulation thermal environment, and combustion gas is methane, realizes testpieces homonymy heat and applies combining of acoustic loads.Methane storing tank is connected with flame heating gun by flame pipe system respectively with oxygen storage tank; combustion gas and oxygen pipeline are provided with reduction valve, high-low pressure detects protection, safety cut-off valve, flow control valve etc., add heat request regulating gas and oxygen supply amount according to testpieces.Fired heater comprises nine heating guns, and each heating gun has combustion gas and oxygen flame pipe system separately, and every flame pipe system is independently controlled.Nine heating guns are arranged on according to 3 × 3 array arrangements on the sidewall of travelling-wave tube test section, and testpieces is installed on the travelling-wave tube test section sidewall relative with well heater.The temperature of testpieces adopts non-contact infrared point Wen Yi to test, and in the travelling-wave tube sidewall overdraught direction of installation fired heater and downstream direction, flame monitor is respectively installed well heater is carried out to examinations.
The utility model beneficial effect compared with prior art:
1) adopt the heating arrangement of fired heater as thermonoise test, overcome the weak shortcoming of conventional quartz lamp heater noise resistance ability and heating efficiency, the heating efficiency of pilot system is significantly improved, can realizes 1000 DEG C of above thermal environments of testpieces and apply.
2) in strong noise environment, fired heater heating gun noise resistance ability is strong, not fragile, has ensured the stability of testpieces heating-up temperature in process of the test.
3) adopt the array of multiple heating gun compositions to heat testpieces, in warranty test part heating-up temperature, also there is very high temperature homogeneity.
4) each heating gun of fired heater has independent fuel gas pipeline, oxygen pipeline and control system, to testpieces, heating has very strong control, and adopt flame monitor to carry out implementing monitoring to heated condition, ensure the security of process of the test.
The utility model is as a kind of test unit of thermonoise combinational environment simulation of flame heated type, can be used for the thermonoise combinational environment Performance Assessment test of the large area thermal protection system of hypersonic aircraft wing rudder structure, Control System for Reusable Launch Vehicle, can be used for the thermal noise performance examination of supersonic speed aviation aircraft skinpiston structure, aspect Flight Vehicle Structure optimization and the examination of thermonoise combinational environment, having wide practical use.
Brief description of the drawings
Fig. 1 flame heating hot of the present utility model noise compound environmental tester pie graph.
Fig. 2 flame heating gun installing plate of the present utility model.
Fig. 3 flame heating of the present utility model flame pipe system.
Fig. 4 flame heating gun installation diagram of the present utility model.
Wherein, 1 is travelling-wave tube noise device, 2 is flame monitor, 3 is flame heating gun, 4 is flame pipe system, 5 is gas storage system, 6 is FCS, 7 is flame heating gun installing plate, 8 is noise TT&C system, 9 is testpieces fixture, 10 is testpieces, 11 is temperature point, 12 is mounting hole, 13 is oxygen storage tank, 14 is methane storing tank, 15 is reduction valve, 16 is ball valve, 17 is pressure unit, 18 is low pressure switch, 19 is gas cut off valve, 20 is high-pressure switch, 21 is electric control valve, 22 is solenoid valve, 23 is coupling bolt, 24 is travelling-wave tube test section, 25 is rigidity heat shield.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
The utility model is a kind of flame heating hot noise combinational environment simulation test device, as shown in Figure 1, comprise travelling-wave tube noise device 1, flame monitor 2, flame heating gun 3, flame pipe system 4, flame air supply system 5, FCS 6, flame heating gun installing plate 7, noise TT&C system 8, testpieces fixture 9, testpieces 10 and comprise the temperature control system of temperature point 11.Testpieces is metal or high-temperature composite material testpieces.
Wherein, described travelling-wave tube noise device 1 comprises dynamic loudspeaker, horn, test section, diffuser and the muffler section for generation of noise, between each assembly, connects successively.Described noise TT&C system 8 comprises microphone and control system.
Described flame heating gun installing plate 7 comprises nine mounting holes 12, and it is arranged as shown in Figure 2.Described gas storage system 5 comprises oxygen storage tank 13 and methane storing tank 14.
If Fig. 3 is gas flame pipe system 4 of the present utility model, comprise methane flame pipe system and oxygen flame pipe system, wherein methane flame pipe system comprises reduction valve 15, ball valve 16, pressure unit 17, low pressure switch 18, gas cut off valve 19, high-pressure switch 20 and electric control valve 21, the combustion gas required to gas heating rifle regulates and controls.Wherein oxygen flame pipe system comprises reduction valve, ball valve, pressure unit, low pressure switch, solenoid valve 22, high-pressure switch and electric control valve etc., the oxygen required to gas heating rifle regulates and controls, in oxygen flame pipeline, can use solenoid valve, and use gas cut off valve 19 at opposite position in methane flame pipe system, safer.
And, high-low pressure is set on pipeline and detects protection, utilize above-mentioned valve in the situation that line pressure is abnormal, regulate.
FCS 6, comprises 18 road operation circuits, and each circuit is independently controlled 1 road methane pipeline or 1 road oxygen pipeline.
In concrete enforcement, the layout of pilot system as shown in Figure 1.Flame heating gun 3 and testpieces 10 are arranged in the both sides of travelling-wave tube noise device 1 test section, two flame monitors 2 are placed on respectively on the overdraught direction of flame heating gun 3 and the travelling-wave tube sidewall of downstream direction, as do not measured flame, can send flame-out warning and close fuel gas pipeline.The microphone of noise TT&C system 8 is placed on the overdraught direction of testpieces.
As shown in Figure 4, nine flame heating guns 3 are through the mounting hole 12 on installing plate 7 in the installation of flame heating gun, and fixing by coupling bolt 23, heating gun 3 burns jet opening distance testpieces apart from can suitably regulating.The inside of the test section 24 of travelling-wave tube noise device 1 is covered with the heat shield 25 of rigidity, for preventing flame when heating heating effect to travelling-wave tube test section 24.
For the utility model example, choosing C/SiC dull and stereotyped is testpieces, and thickness is 2mm, is of a size of 288 × 288mm
2, adopt infrared point temperature instrument to measure testpieces temperature in the outside of travelling-wave tube.
Use the concrete steps of flame-type thermonoise compound environmental tester described in the utility model as follows: 1) testpieces is installed; 2) noise factor and the debugging of flame heating system; 3) trial test is implemented, and flame heating system checks, noise factor inspection, test and monitoring system inspection; 4) official test is implemented, and starts flame heating system, and to be tested starts to apply acoustic loads while reaching assigned temperature, regulates subsequently flame system, keeps the temperature of testpieces to reach appointment requirement; 5) heating system and noise combine apply keep the stipulated time; 6) test stops; 7) experimental data processing.
Above embodiment of the present utility model is explained in detail.Obviously, above-mentioned embodiment is only optimum embodiment of the present utility model, but the utility model is not limited to above-described embodiment.In the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make various variations.If these amendments and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (6)
1. a flame heating hot noise compound environmental tester, comprise travelling-wave tube noise device (1), noise TT&C system (8) and heat test device, for to being carried out thermonoise combined environment testing by test specimen, it is characterized in that, heat test device is flame-type heating;
Use methane and oxygen to produce flame;
Described heat test device comprises: gas storage system (5), flame pipe system (4), flame heating gun (3), FCS (6), flame monitor (2), flame heating gun installing plate (7), Research on Automatic Measuring System of Temperature; Flame heating gun (3) is arranged on travelling-wave tube sidewall by flame heating gun installing plate (7), and extend into travelling-wave tube inside, for flame heating gun (3), arranges 2 flame monitors (2) in overdraught direction and downstream direction; Under the control of FCS (6), provide methane and oxygen gas by flame pipe system (4) to flame heating gun (3) by gas storage system (5); Described Research on Automatic Measuring System of Temperature comprises temperature sensor and signal conditioner, tests by the temperature of test specimen, and detecting information is outputed to FCS (6), for controlling the size of flame.
2. flame heating hot noise compound environmental tester as claimed in claim 1, it is characterized in that, described flame heating hot noise compound environmental tester comprises 9 heating guns (3), and heating gun (3) adopts 3 × 3 arrays to arrange, and testpieces is heated.
3. flame heating hot noise compound environmental tester as claimed in claim 2, it is characterized in that, described flame pipe system (4) comprises respectively 9 road methane pipelines and 9 road oxygen pipelines, and each heating gun (3) is connected with oxygen pipeline with independent methane pipeline respectively; Described FCS (6), comprises 18 road operation circuits, and each circuit is independently controlled 1 road methane pipeline or 1 road oxygen pipeline.
4. flame heating hot noise compound environmental tester as claimed in claim 3, is characterized in that, described Research on Automatic Measuring System of Temperature adopts infrared point temperature instrument to test.
5. flame heating hot noise compound environmental tester as claimed in claim 4, is characterized in that, the front end of described flame monitor (2) comprises hurricane globe, and flame monitor (2) carries out continuous detecting to combustion flame.
6. flame heating hot noise compound environmental tester as claimed in claim 5, is characterized in that, in described travelling-wave tube inner side, is covered with rigidity heat shield at test section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678867.3U CN203658073U (en) | 2013-10-30 | 2013-10-30 | Flame-heated type thermal noise combined environment test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678867.3U CN203658073U (en) | 2013-10-30 | 2013-10-30 | Flame-heated type thermal noise combined environment test apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203658073U true CN203658073U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320678867.3U Withdrawn - After Issue CN203658073U (en) | 2013-10-30 | 2013-10-30 | Flame-heated type thermal noise combined environment test apparatus |
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| CN (1) | CN203658073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596781A (en) * | 2013-10-30 | 2015-05-06 | 北京强度环境研究所 | Flame heating type thermal noise combined environment testing device |
-
2013
- 2013-10-30 CN CN201320678867.3U patent/CN203658073U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596781A (en) * | 2013-10-30 | 2015-05-06 | 北京强度环境研究所 | Flame heating type thermal noise combined environment testing device |
| CN104596781B (en) * | 2013-10-30 | 2017-07-14 | 北京强度环境研究所 | A kind of flame heating hot noise compound environmental tester |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20170714 |