CN109458275A - A kind of experimental rig using echo test method detection engine inflation pressure - Google Patents
A kind of experimental rig using echo test method detection engine inflation pressure Download PDFInfo
- Publication number
- CN109458275A CN109458275A CN201811225957.0A CN201811225957A CN109458275A CN 109458275 A CN109458275 A CN 109458275A CN 201811225957 A CN201811225957 A CN 201811225957A CN 109458275 A CN109458275 A CN 109458275A
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- China
- Prior art keywords
- push
- noise transducer
- mounting bracket
- pull electromagnet
- engine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/96—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by specially adapted arrangements for testing or measuring
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention proposes a kind of experimental rig using echo test method detection engine inflation pressure, including mounting bracket, push-pull electromagnet, noise transducer mounting bracket and noise transducer；Push-pull electromagnet is mounted in mounting bracket, and central axis is overlapped with engine axis, and noise transducer is fixed on push-pull electromagnet shell by noise transducer mounting bracket, and noise transducer axis is directed toward blanking cover and engine axis intersection point.The present invention can tap the frequency spectrum of sound produced by engine jet pipe blanking cover by analysis according to requiring, and judge whether the inflation pressure of engine meets the requirements with this.According to service condition, the device percussion power size is adjustable within a predetermined range, easy to operate, securely and reliably.
Description
Technical field
The present invention relates to rocket engine detection technique fields, specially a kind of to detect engine using echo test method
Inflate the experimental rig of pressure.
Background technique
The rocket engine of long term storage with pressure, due to the influence of storage time, storage condition, condition of storage, burning
Chamber interior pressure is likely due to the reduction of the reasons such as ageing of rubber, to guarantee that rocket engine is in normal operating conditions, just must
It must examine whether engine interior pressure reduces.
In traditional long term storage scheme, the mode of detection engine interior pressure is to connect exterior line etc. using pressure gauge
External detection component is connected on rocket engine and is monitored, and needs after this detection mode detection to engine interior
It is inflated again, to eliminate the pressure change generated by communication with detection process.
But the systems such as pressure gauge especially in actual use, are not available under some more severe assembly environments
Property detection part detected, or tonifying Qi operation can not be carried out, just need a kind of simple and quick detection device at this time, not
It is used for quickly detecting in the case of disassembly rocket engine pipeline.
Summary of the invention
In order to solve the problems existing in the prior art, the present invention proposes a kind of using the detection engine inflation of echo test method
The experimental rig of pressure, using the method for echo sounding, to the engine chamber laid in for a long time, whether gas leakage judges.
The technical solution of the present invention is as follows:
A kind of experimental rig using echo test method detection engine inflation pressure, it is characterised in that: including
Mounting bracket, push-pull electromagnet, noise transducer mounting bracket and noise transducer；
Mounting bracket uses tower structure, horizontal to be installed in engine jet pipe；Push-pull electromagnet is mounted on installation
On bracket, and the central axis of push-pull electromagnet is overlapped with engine axis, and the impact head direction of push-pull electromagnet is started
Blanking cover in machine jet pipe；
Noise transducer mounting bracket is fixed on push-pull electromagnet shell, and noise transducer is mounted on noise transducer
In mounting bracket, and noise transducer axis is directed toward blanking cover and engine axis intersection point；The sound audio that noise transducer will test
Spectrum is transferred to external detection module.
Further preferred embodiment, a kind of test dress using echo test method detection engine inflation pressure
It sets, it is characterised in that: installation site of the push-pull electromagnet in mounting bracket is axially adjustable, so as to adjust plug-type electricity
Percussion power of the magnet impact head to blanking cover.
Further preferred embodiment, a kind of test dress using echo test method detection engine inflation pressure
It sets, it is characterised in that: demarcated according to axially mounted position of the desired percussion power to push-pull electromagnet, and in installation branch
According to the mounting structure of calibration position setting push-pull electromagnet on frame.
Further preferred embodiment, a kind of test dress using echo test method detection engine inflation pressure
It sets, it is characterised in that: noise transducer mounting bracket is adjustable angle structure, can be according to push-pull electromagnet in mounting bracket
On axially mounted position, adjust noise transducer axis be directed toward, so that noise transducer axis is directed toward blanking cover always and is started
Machine crossing point of axes.
Beneficial effect
The present invention proposes a kind of experimental rig using echo test method detection engine inflation pressure, mainly by pushing and pulling
Formula electromagnet, mounting bracket, noise transducer mounting bracket, the components such as noise transducer composition.The present apparatus can according to requiring,
The frequency spectrum of sound produced by engine jet pipe blanking cover is tapped by analysis, judges whether the inflation pressure of engine meets with this
It is required that.According to service condition, the device percussion power size is adjustable within a predetermined range, easy to operate, securely and reliably.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 echo sounding apparatus structure schematic diagram；
Wherein: 1 mounting bracket；2 push-pull electromagnets；3 noise transducer mounting brackets；4 noise transducers.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiment is illustrative, it is intended to it is used to explain the present invention, without
It can be interpreted as limitation of the present invention.
Echo sounding apparatus structure in the present embodiment is as shown in Figure 1, the system includes mounting bracket 1, plug-type electromagnetism
Iron 2, noise transducer mounting bracket 3 and noise transducer 4.
Mounting bracket uses tower structure, horizontal to be installed in engine jet pipe, mounting bracket axis and engine shaft
Line is overlapped.Push-pull electromagnet is mounted in mounting bracket, and the central axis of push-pull electromagnet is overlapped with engine axis,
The impact head of push-pull electromagnet is towards the blanking cover in engine jet pipe.
Installation site of the push-pull electromagnet in mounting bracket is axially adjustable, hits so as to adjust push-pull electromagnet
The percussion power tapped the head to blanking cover.It can control the size of percussion power away from the distance of jet pipe blanking cover by adjusting push-pull electromagnet,
Remoter apart from jet pipe blanking cover, percussion power is bigger, adjusts suitable percussion power for measuring.It, can be previously according to when specific installation
It is required that percussion power the axially mounted position of push-pull electromagnet is demarcated, and in mounting bracket according to calibration position set
The mounting hole of push-pull electromagnet is set, push-pull electromagnet is connected directly between in corresponding mounting hole when installing.
Noise transducer mounting bracket is fixed on push-pull electromagnet shell, and noise transducer is mounted on noise transducer
In mounting bracket, and noise transducer axis is directed toward blanking cover and engine axis intersection point.Since push-pull electromagnet is in installation branch
Axially mounted position on frame is adjustable, can be according to pushing away so noise transducer mounting bracket is also configured as adjustable angle structure
Axially mounted position of the pull-type electromagnet in mounting bracket, the axis for adjusting noise transducer are directed toward, and make noise transducer axis
Line is directed toward blanking cover and engine axis intersection point always.
The sound spectrum that noise transducer is used to measure the echo generated due to percussion, and will test is transferred to external inspection
Survey module.
In the present embodiment, before test, using one standard airtight cavity of structure fabrication with blanking cover same material and thickness,
The gas of the corresponding pressure of filling, taps and is carried out to standard airtight cavity echo sounding, obtain the feature of echo signal in cavity
Frequency；According to the setting intracorporal pressure of step-size change standard closed chamber, percussion and echo sounding are carried out again, obtain echo letter
Number characteristic frequency；Repeatedly, the database of pressure Yu echo signal characteristic frequency is established；And in test, using push-and-pull
Formula electromagnet (being similar to EML-0530B Yi Laike direct current push-pull electromagnet) carries out the engine blanking cover of long term storage with pressure
Echo sounding taps blanking cover acquisition test data by comparing characteristic frequency with database and determines the engine of the long term storage
It burns indoor inflation pressure values, to judge whether that gas leakage occurs.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (4)
1. a kind of experimental rig using echo test method detection engine inflation pressure, it is characterised in that: including installation branch
Frame, push-pull electromagnet, noise transducer mounting bracket and noise transducer；
Mounting bracket uses tower structure, horizontal to be installed in engine jet pipe；Push-pull electromagnet is mounted on mounting bracket
On, and the central axis of push-pull electromagnet is overlapped with engine axis, the impact head of push-pull electromagnet is sprayed towards engine
Blanking cover in pipe；
Noise transducer mounting bracket is fixed on push-pull electromagnet shell, and noise transducer is mounted on noise transducer installation
On bracket, and noise transducer axis is directed toward blanking cover and engine axis intersection point；The sound spectrum that noise transducer will test passes
It is defeated by external detection module.
2. a kind of experimental rig using echo test method detection engine inflation pressure according to claim 1, special
Sign is: installation site of the push-pull electromagnet in mounting bracket is axially adjustable, hits so as to adjust push-pull electromagnet
The percussion power tapped the head to blanking cover.
3. a kind of experimental rig using echo test method detection engine inflation pressure according to claim 2, special
Sign is: being demarcated according to axially mounted position of the desired percussion power to push-pull electromagnet, and the root in mounting bracket
According to the mounting structure of calibration position setting push-pull electromagnet.
4. a kind of experimental rig using echo test method detection engine inflation pressure according to claim 2, special
Sign is: noise transducer mounting bracket is adjustable angle structure, can be according to axis of the push-pull electromagnet in mounting bracket
To installation site, the axis for adjusting noise transducer is directed toward, and noise transducer axis is made to be directed toward blanking cover and engine axis always
Intersection point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811225957.0A CN109458275B (en) | 2018-10-21 | 2018-10-21 | Test device for detecting engine inflation pressure by adopting echo test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811225957.0A CN109458275B (en) | 2018-10-21 | 2018-10-21 | Test device for detecting engine inflation pressure by adopting echo test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109458275A true CN109458275A (en) | 2019-03-12 |
| CN109458275B CN109458275B (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811225957.0A Active CN109458275B (en) | 2018-10-21 | 2018-10-21 | Test device for detecting engine inflation pressure by adopting echo test method |
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| Country | Link |
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| CN (1) | CN109458275B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880622A (en) * | 2021-02-04 | 2021-06-01 | 上海航天控制技术研究所 | Method for calibrating swing angle sensor of flexible spray pipe by using inclinometer |
| CN114062920A (en) * | 2021-11-30 | 2022-02-18 | 河南职业技术学院 | Internet of things detection circuit for power switch cabinet |
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| US7174788B2 (en) * | 2003-12-15 | 2007-02-13 | General Electric Company | Methods and apparatus for rotary machinery inspection |
| EP2488844A1 (en) * | 2009-10-14 | 2012-08-22 | Robert Bosch GmbH | Ultrasonic measuring device and measuring method |
| CN103336908A (en) * | 2013-07-23 | 2013-10-02 | 哈尔滨工业大学 | Method for predicating residual life by monotonous echo state network |
| CN108131217A (en) * | 2017-11-21 | 2018-06-08 | 西北工业大学 | The non-linear pressure coupling response function measurement method of solid propellant |
| CN108362350A (en) * | 2018-02-26 | 2018-08-03 | 中国人民解放军国防科技大学 | Method and device for measuring residual volume of storage tank based on nonlinear acoustic cavity resonance |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7174788B2 (en) * | 2003-12-15 | 2007-02-13 | General Electric Company | Methods and apparatus for rotary machinery inspection |
| EP2488844A1 (en) * | 2009-10-14 | 2012-08-22 | Robert Bosch GmbH | Ultrasonic measuring device and measuring method |
| CN103336908A (en) * | 2013-07-23 | 2013-10-02 | 哈尔滨工业大学 | Method for predicating residual life by monotonous echo state network |
| CN108131217A (en) * | 2017-11-21 | 2018-06-08 | 西北工业大学 | The non-linear pressure coupling response function measurement method of solid propellant |
| CN108362350A (en) * | 2018-02-26 | 2018-08-03 | 中国人民解放军国防科技大学 | Method and device for measuring residual volume of storage tank based on nonlinear acoustic cavity resonance |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880622A (en) * | 2021-02-04 | 2021-06-01 | 上海航天控制技术研究所 | Method for calibrating swing angle sensor of flexible spray pipe by using inclinometer |
| CN114062920A (en) * | 2021-11-30 | 2022-02-18 | 河南职业技术学院 | Internet of things detection circuit for power switch cabinet |
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| Publication number | Publication date |
|---|---|
| CN109458275B (en) | 2020-12-08 |
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Inventor after: Gao Yonggang Inventor after: Li Xuhua Inventor after: Zhu Ziwen Inventor after: Liu Bo Inventor after: Wang Zhe Inventor after: Qu Youyang Inventor after: Song Feifei Inventor after: Zhu Yao Inventor after: He Xiaofang Inventor before: Gao Yonggang Inventor before: He Xiaofang Inventor before: Zhu Ziwen Inventor before: Liu Bo Inventor before: Wang Zhe Inventor before: Qu Youyang Inventor before: Song Feifei Inventor before: Zhu Yao |
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