CN102004022A - Vibration and noise complex experiment equipment - Google Patents
Vibration and noise complex experiment equipment Download PDFInfo
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- CN102004022A CN102004022A CN 201010563486 CN201010563486A CN102004022A CN 102004022 A CN102004022 A CN 102004022A CN 201010563486 CN201010563486 CN 201010563486 CN 201010563486 A CN201010563486 A CN 201010563486A CN 102004022 A CN102004022 A CN 102004022A
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Abstract
The invention discloses vibration and noise complex experiment equipment which is characterized by mainly comprising a noise experiment box, a vibration table and a control box, wherein the noise experiment box is an airtight box body and is internally provided with a sound cavity which is internally provided with at least one set of sound production device; the noise experiment box is provided with a bracket support over the ground, an accommodation space is formed below the noise experiment box, and the vibration table is arranged in the accommodation space; the table board of the vibration table is fixedly provided with an extending head, the bottom surface of the noise experiment box is provided with an interface corresponding to the extending head, the extending head extends into the sound cavity through the interface, and a sealing device is arranged between the circumferential direction of the extending head and the interface for connection; and the control box is internally provided with a control circuit used for controlling the noise experiment box and the vibration table. The invention not only can simultaneously provide complex experiments of the vibration experiment and the noise experiment, but also can provided single vibration experiment or single noise experiment, which fills in a blank in the field in China.
Description
Technical field
The present invention relates to a kind of compound mechanics environmental test equipment, be specifically related to a kind of vibration, noise composite testing equipment.Being mainly used in can provide vibration, noise complex test environment simultaneously to products such as each electron-like of containing vibration, noise factor in the working environment, machinery and equipment, and design, the exploitation of product to be measured, each stage such as process, dispatch from the factory are tested.
Background technology
In the actual use of all kinds of civilian, military use products, product all need be faced certain environmental baseline, generally includes factors such as temperature, vibration, humidity, noise.All kinds of environmental factors all can produce corresponding environmental stress to product, and this actual use for product is disadvantageous.Wherein vibrating the typical effects that causes has: structural crack or fracture, components and parts inefficacy, electric loose contact or short circuit or the like; The typical effects that noise causes has parts acoustic fatigue and vibrating fatigue, electric contact interrupter duty, electrical noise excessive or the like.Therefore must carry out strict test each stage such as design, develop, process, dispatch from the factory to product, guarantee that product meets design standards and relevant GB, army mark.
At present, to the test of vibration mainly be by all kinds of electronic, mechanical, hydraulic vibration gens to test specimen impose sine, at random, mode of vibration such as impact, with the vibratory impulse of imitation specimen in actual environment for use, thereby finish the vibration test of testing exemplar; Test to noise mainly is by all kinds of reverberation chambers, travelling-wave tube the test exemplar to be imposed sound field patterns such as diffusion field noise, glancing incidence noise, cavity resonance noise, disturb with the very noisy in the actual environment for use of imitation specimen, thereby finish the noise fest of testing exemplar.But no matter be shaking table or reverberation chamber, travelling-wave tube, single vibration or noise fest all can only be provided, can't vibrate composite testing simultaneously with noise.
The working environment that has some products to be faced in actual use comprises the noise and vibration factor simultaneously, plug-in as aircraft, it bears the low-frequency vibration that transmits from the aircraft main body by plug-in framework on the one hand, bears the high frequency noise that the boundary-layer air pressure fluctuation that directly acts on plug-in outside surface in the flight course excited on the other hand again and vibrates.Wherein, low-frequency vibration mainly causes structure is comprised the inefficacy of support, large circuit board and electromechanical assembly (as gyroscope, relay), and the high frequency noise vibration mainly causes the internal electron product bug.
The product that comprises the noise and vibration factor in the working environment like that simultaneously, the comprehensive effect of vibration, noise can comprise all effects that these cause separately, and vibration, noise integrated environment may influence each other, and are created in the absent variable comprehensive effect of any single environment.Therefore be directed to this series products, thereby want working environment that is virtually reality like reality to greatest extent and reach good test effect, just must vibrate simultaneously, noise fest, otherwise single vibration test or noise fest will be ignored some integrated environment stress, can't reach comprehensive test effect.Up-to-date national military standard GJB 150.24A-2009 proposes relevant testing standard to this series products.
No matter be shaking table or reverberation chamber, travelling-wave tube, single vibration or noise fest all can only be provided, still do not have the composite testing that a kind of device can provide vibration, noise fest simultaneously at present.The inventor this in manufacturing development and the design experiences of being engaged in Related product for many years, at the problems referred to above, in detail after design and the scrupulous assessment, eventually the present invention of a true tool practicality.
Summary of the invention
The object of the invention provides a kind of vibration, noise composite testing equipment, and this equipment not only can provide independent vibration or noise fest pattern, vibration and noise compbined test pattern also can be provided, thereby reach comprehensive test effect.
For achieving the above object, the technical solution used in the present invention is: a kind of vibration, noise composite testing equipment, mainly form by noise fest case, shaking table and control box three parts; Wherein, described noise fest case is an airtight casing, and its inside is an operatic tunes, is provided with at least one cover sound-producing device in this operatic tunes; Described noise fest case is provided with a stent support over the ground, and forms an accommodation space below the noise fest case, and described shaking table is located in this accommodation space; Fixedly install an Extension Head on the moving-coil table top of described shaking table, corresponding Extension Head offers an interface on the described noise fest case bottom surface, and described Extension Head stretches in the operatic tunes through this interface, and circumferentially with between interface establishes packoff and be connected at Extension Head; Establish control circuit in the described control box, be used to control noise fest case and shaking table.
Related content in the technique scheme is explained as follows:
1. in the such scheme, described sound-producing device evokes required sound field in the operatic tunes after the voice signal of certain specific spectral pattern that control box sends drives, and can many cover sound-producing devices be set according to the requirement of the required acoustical power of test.
2. in the such scheme, described Extension Head upper end is by the fixing test specimen of piece fixture; Described Extension Head stretches in the operatic tunes through described interface, and shaking table and noise fest case inside are separated.
3. in the such scheme, the effect of described packoff is to guarantee the sealing between shaking table anchor clamps and the chamber, makes the shaking table work noise not influence sound field in the noise fest case; Described packoff is an O-ring seal that is ductile, and can not cause additional stiffness to the moving-coil to-and-fro movement, is good with silicon rubber loop.
Principle of work of the present invention and advantage are as follows: the present invention is by being provided with the noise fest case on the table top of shaking table, and the work of sound-producing device in vibration by control box control vibration table surface and the noise fest case, use and reach the purpose of finishing vibration, noise composite testing.The present invention not only can provide the composite testing of vibration, noise fest simultaneously, and independent vibration test or independent noise fest can also be provided, and has filled up the domestic blank in this field.
Description of drawings
Accompanying drawing 1 is structural principle synoptic diagram of the present invention.
In the above accompanying drawing: 1. noise fest case; 2. shaking table; 3. control box; 4. the operatic tunes; 5. sound-producing device; 6. support; 7. accommodation space; 8. moving-coil table top; 9. Extension Head; 10. interface; 11. packoff; 12. test specimen.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described:
Embodiment:
Shown in accompanying drawing 1, a kind of vibration, noise composite testing equipment mainly are made up of noise fest case 1, shaking table 2 and control box 3 three parts.
Wherein, described noise fest case 1 is an airtight casing, and its inside is an operatic tunes 4, is provided with at least one cover sound-producing device 5 in this operatic tunes 4; Wherein, described sound-producing device 5 evokes required sound field (can many cover sound-producing devices 5 be set according to the requirement of the required acoustical power of test) in the operatic tunes 4 after the voice signal of certain specific spectral pattern that control box 3 sends drives.
Described noise fest case 1 is provided with a support 6 over the ground and supports, and forms an accommodation space 7 below noise fest case 1, and described shaking table 2 is located in this accommodation space 7.
As shown in Figure 1, fixedly install an Extension Head 9 on the moving-coil table top 8 of described shaking table 2, fixedly test specimen 12 of a piece fixture is passed through in these Extension Head 9 upper ends; Corresponding described Extension Head 9 offers an interface 10 on described noise fest case 1 bottom surface, described Extension Head 9 stretches in the operatic tunes 4 through this interface 10, shaking table 2 and noise fest case 1 inside are separated, and circumferentially establish packoff 11 at Extension Head 9 and be connected with 10 interfaces.The effect of sealing device 11 is to guarantee the sealing between shaking table 2 and the noise fest case 1, makes shaking table 2 work noises not influence sound field in the noise fest case 1; Described packoff 11 is an O-ring seal that is ductile, and can not cause additional stiffness to the moving-coil to-and-fro movement, is good with silicon rubber loop.
Establish control circuit in the described control box 3, be used to control noise fest case 1 and shaking table 2.
During work, control shaking table 2 and 1 work of noise fest case simultaneously by control box 3, comprise signal source, preamplifying circuit, power amplifier module and relevant auxiliary circuit etc. in the control box 3, provide vibration-testing by shaking table 2, provide noise testing by noise fest case 1, vibration, noise composite testing are finished in both cooperations, and real comprehensively test can be provided the product that contains vibration, noise in actual working environment simultaneously.
A kind of vibration of the present invention, noise composite testing equipment not only can provide the composite testing of vibration, noise fest simultaneously, and independent vibration test or independent noise fest can also be provided, and have filled up the domestic blank in this field.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. a vibration, noise composite testing equipment is characterized in that: mainly be made up of noise fest case, shaking table and control box three parts; Wherein, described noise fest case is an airtight casing, and its inside is an operatic tunes, is provided with at least one cover sound-producing device in this operatic tunes; Described noise fest case is provided with a stent support over the ground, and forms an accommodation space below the noise fest case, and described shaking table is located in this accommodation space;
Fixedly install an Extension Head on the table top of described shaking table, corresponding Extension Head offers an interface on the described noise fest case bottom surface, and described Extension Head stretches in the operatic tunes through this interface, and circumferentially with between interface establishes packoff and be connected at Extension Head;
Establish control circuit in the described control box, be used to control noise fest case and shaking table.
2. vibration according to claim 1, noise composite testing equipment is characterized in that: described packoff is an O-ring seal that is ductile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105634861A CN102004022B (en) | 2010-11-29 | 2010-11-29 | Vibration and noise complex experiment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105634861A CN102004022B (en) | 2010-11-29 | 2010-11-29 | Vibration and noise complex experiment equipment |
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| CN102004022A true CN102004022A (en) | 2011-04-06 |
| CN102004022B CN102004022B (en) | 2012-01-25 |
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| CN2010105634861A Active CN102004022B (en) | 2010-11-29 | 2010-11-29 | Vibration and noise complex experiment equipment |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721546A (en) * | 2012-06-28 | 2012-10-10 | 沈阳黎明航空发动机(集团)有限责任公司 | Mechanical force and sound wave coupling excitation system and test system device |
| CN102829815A (en) * | 2012-08-13 | 2012-12-19 | 苏州岸肯电子科技有限公司 | Vibrating table arranged in damping room |
| CN102868462A (en) * | 2012-09-07 | 2013-01-09 | 苏州市大富通信技术有限公司 | Inter-modulation signal detecting system and method |
| CN103090965A (en) * | 2013-01-16 | 2013-05-08 | 广州市中新塑料有限公司 | Automotive upholstery vibration noise detection method and muting device |
| CN104019974A (en) * | 2014-06-14 | 2014-09-03 | 广西科技大学 | Simple vibration and noise reducing test device for satellite fairing |
| CN104034524A (en) * | 2014-06-24 | 2014-09-10 | 中国飞机强度研究所 | Device and method for acoustic-static combined loading test |
| CN104374826A (en) * | 2014-12-15 | 2015-02-25 | 中国飞机强度研究所 | Test unit for testing acoustic response of rotor blades |
| CN104458176A (en) * | 2014-12-15 | 2015-03-25 | 中国飞机强度研究所 | Noise and vibration combined test device for blade of rotor |
| CN106114901A (en) * | 2016-06-21 | 2016-11-16 | 中国飞机强度研究所 | A kind of noise and pitotstatic charger |
| CN106989815A (en) * | 2017-04-26 | 2017-07-28 | 北京强度环境研究所 | A kind of noise fest device |
| CN107976293A (en) * | 2017-11-27 | 2018-05-01 | 上海卫星装备研究所 | Electronic array satellite sound and vibration integration simulation experiment system |
| CN109612713A (en) * | 2019-01-16 | 2019-04-12 | 北京卫星环境工程研究所 | Heat, sound, vibration combined stress simulation test device |
| CN110139190A (en) * | 2019-05-09 | 2019-08-16 | 中国飞机强度研究所 | A method of for improving high sound intensity reverberation chamber high frequency sound pressure level |
| CN110243617A (en) * | 2019-05-29 | 2019-09-17 | 北京强度环境研究所 | A kind of integrated environment simulator |
| CN111413059A (en) * | 2020-05-08 | 2020-07-14 | 弗锐德天宇环境科技成都有限公司 | Four combined test cases of portable two shaking tables |
| CN111751066A (en) * | 2019-03-28 | 2020-10-09 | 爱斯佩克株式会社 | Environmental test apparatus, laboratory component, and environmental test method |
| CN111781076A (en) * | 2019-10-24 | 2020-10-16 | 东北大学 | Integrated tester and testing method for shock absorption, noise reduction and impact resistance of composite material |
| CN112665715A (en) * | 2021-01-15 | 2021-04-16 | 成都航空职业技术学院 | Vibration fault detection system and method for aircraft engine |
| CN113483977A (en) * | 2021-06-28 | 2021-10-08 | 北京强度环境研究所 | Acoustic characteristic testing device for light and thin structure |
| CN113739898A (en) * | 2021-08-27 | 2021-12-03 | 中国电子科技集团公司第十一研究所 | Detector signal acquisition system |
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| JPH07229785A (en) * | 1994-02-15 | 1995-08-29 | Tlv Co Ltd | Vibration and sound measuring device |
| CN2751285Y (en) * | 2004-06-10 | 2006-01-11 | 复旦大学 | Sound vibration laser monitoring test instrument |
| CN201867296U (en) * | 2010-11-29 | 2011-06-15 | 苏州苏试试验仪器有限公司 | Combined vibration and noise testing equipment |
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| JPH07229785A (en) * | 1994-02-15 | 1995-08-29 | Tlv Co Ltd | Vibration and sound measuring device |
| CN2751285Y (en) * | 2004-06-10 | 2006-01-11 | 复旦大学 | Sound vibration laser monitoring test instrument |
| CN201867296U (en) * | 2010-11-29 | 2011-06-15 | 苏州苏试试验仪器有限公司 | Combined vibration and noise testing equipment |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721546A (en) * | 2012-06-28 | 2012-10-10 | 沈阳黎明航空发动机(集团)有限责任公司 | Mechanical force and sound wave coupling excitation system and test system device |
| CN102829815A (en) * | 2012-08-13 | 2012-12-19 | 苏州岸肯电子科技有限公司 | Vibrating table arranged in damping room |
| CN102868462A (en) * | 2012-09-07 | 2013-01-09 | 苏州市大富通信技术有限公司 | Inter-modulation signal detecting system and method |
| CN103090965A (en) * | 2013-01-16 | 2013-05-08 | 广州市中新塑料有限公司 | Automotive upholstery vibration noise detection method and muting device |
| CN104019974A (en) * | 2014-06-14 | 2014-09-03 | 广西科技大学 | Simple vibration and noise reducing test device for satellite fairing |
| CN104034524A (en) * | 2014-06-24 | 2014-09-10 | 中国飞机强度研究所 | Device and method for acoustic-static combined loading test |
| CN104374826B (en) * | 2014-12-15 | 2019-02-05 | 中国飞机强度研究所 | It is a kind of for testing the experimental rig of rotor blade acoustic response |
| CN104374826A (en) * | 2014-12-15 | 2015-02-25 | 中国飞机强度研究所 | Test unit for testing acoustic response of rotor blades |
| CN104458176A (en) * | 2014-12-15 | 2015-03-25 | 中国飞机强度研究所 | Noise and vibration combined test device for blade of rotor |
| CN106114901A (en) * | 2016-06-21 | 2016-11-16 | 中国飞机强度研究所 | A kind of noise and pitotstatic charger |
| CN106114901B (en) * | 2016-06-21 | 2019-01-18 | 中国飞机强度研究所 | A kind of noise and pitotstatic loading device |
| CN106989815A (en) * | 2017-04-26 | 2017-07-28 | 北京强度环境研究所 | A kind of noise fest device |
| CN107976293A (en) * | 2017-11-27 | 2018-05-01 | 上海卫星装备研究所 | Electronic array satellite sound and vibration integration simulation experiment system |
| CN109612713A (en) * | 2019-01-16 | 2019-04-12 | 北京卫星环境工程研究所 | Heat, sound, vibration combined stress simulation test device |
| CN109612713B (en) * | 2019-01-16 | 2021-01-05 | 北京卫星环境工程研究所 | Comprehensive stress simulation test device for heat, sound and vibration |
| CN111751066A (en) * | 2019-03-28 | 2020-10-09 | 爱斯佩克株式会社 | Environmental test apparatus, laboratory component, and environmental test method |
| CN110139190A (en) * | 2019-05-09 | 2019-08-16 | 中国飞机强度研究所 | A method of for improving high sound intensity reverberation chamber high frequency sound pressure level |
| CN110139190B (en) * | 2019-05-09 | 2020-06-09 | 中国飞机强度研究所 | Method for improving high-frequency sound pressure level of high-sound-intensity reverberation chamber |
| CN110243617A (en) * | 2019-05-29 | 2019-09-17 | 北京强度环境研究所 | A kind of integrated environment simulator |
| CN111781076A (en) * | 2019-10-24 | 2020-10-16 | 东北大学 | Integrated tester and testing method for shock absorption, noise reduction and impact resistance of composite material |
| CN111413059A (en) * | 2020-05-08 | 2020-07-14 | 弗锐德天宇环境科技成都有限公司 | Four combined test cases of portable two shaking tables |
| CN112665715A (en) * | 2021-01-15 | 2021-04-16 | 成都航空职业技术学院 | Vibration fault detection system and method for aircraft engine |
| CN113483977A (en) * | 2021-06-28 | 2021-10-08 | 北京强度环境研究所 | Acoustic characteristic testing device for light and thin structure |
| CN113739898A (en) * | 2021-08-27 | 2021-12-03 | 中国电子科技集团公司第十一研究所 | Detector signal acquisition system |
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| CN102004022B (en) | 2012-01-25 |
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Address after: 215122 Suzhou City Industrial Park, Suzhou science and Technology Park in the new city, the town of Ting Ting Feng Road, No. 18 Patentee after: Suzhou Su extensive environmental reliability laboratory Co., Ltd. Address before: 215122 Suzhou City Industrial Park, Suzhou science and Technology Park in the new city, the town of Ting Ting Feng Road, No. 18 Patentee before: Suzhou Guangbo Mechanics Environment Laboratory Co., Ltd. |