CN103471943A - Pneumatic accelerating impact experiment method - Google Patents
Pneumatic accelerating impact experiment method Download PDFInfo
- Publication number
- CN103471943A CN103471943A CN2013104248726A CN201310424872A CN103471943A CN 103471943 A CN103471943 A CN 103471943A CN 2013104248726 A CN2013104248726 A CN 2013104248726A CN 201310424872 A CN201310424872 A CN 201310424872A CN 103471943 A CN103471943 A CN 103471943A
- Authority
- CN
- China
- Prior art keywords
- measured body
- large quality
- impact
- transmission mechanism
- force transmission
- 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.)
- Granted
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a pneumatic accelerating impact experiment method which is characterized by comprising the following steps: (1) installing and debugging a pneumatic accelerating impact experiment device; (2) installing and debugging a test instrument; (3) inflating a high-pressure air chamber; (4) starting the test instrument, switching on a power supply of a solenoid valve simultaneously, and accelerating a massive impact body along an accelerating tube to make the impact body impact a tested body; (5) reading a test result through the test instrument. The method has simple steps and is conveniently operated, the massive impact body can be reused, and the test instrument can be used for reading various dynamic impact parameters, so that the method can be used for effectively testing the harmful effects of accidental impact of heavy objects of 2kg-5kg to explosives, or of accidents in which objects of 1kg-5kg impact organic windows in the speed range of 8m/s-80m/s (namely the speed per hour is 28.8km-288km). Thus, the method is suitable for promotion and use.
Description
Technical field
The present invention relates to a kind of striking experiment method, relate in particular to a kind of Pneumatic acceleration striking experiment method.
Background technology
In fiery explosive shipping accident or other mishap, gunpowder, explosive, due to large mass objects accidental impact, will cause the mishaies such as burning, blast, cause great casualties and property loss.In addition, the automobile in high-speed cruising, train emissive plastic glazing, also may cause accident due to the accidental impact of certain mass object, causes great casualties and property loss.
In 8m/s～80m/s speed (being speed per hour 28.8km～288km) scope, to reusable, accurately locate the accidental impact of 2kg～5kg weight to fiery explosive or other materials, or the harm effect of quality 1kg～unscheduled events such as 5kg object strikes emissive plastic glazing, there is no effective method of testing.The current common practice is to adopt the following little quality bullet of disposable 0.5kg hammer into shape at the striking experiment of the following speed of 8m/s or adopt the striking experiment of disposable 5kg left and right impacting body higher than 80m/s higher than the impact test of 80m/s, the large quality of reusable 5kg with speed, and such test method can't be assessed with configuration fire explosive or organic glass and respond with the danger under 8m/s～80m/s speed accidental impact at quality 1kg～5kg object easy, accurately and efficiently.
Summary of the invention
The object of the invention is to overcome and there is no at present effective method of testing, and usually adopt little quality bullet below 0.5kg with speed higher than the impact test of 80m/s or adopt the striking experiment of disposable quality 5kg impacting body in the following speed of 8m/s, but, such test method can overcome current method of testing can't be easy, efficient assessment is with the defect of predetermined configuration fire explosive or the organic glass forms danger response during with 8m/s～80m/s speed accidental impact at quality 1kg～5kg object, a kind of not only accurate positioning is provided, step is simple, convenient operation, and impacting body is reusable, can effectively test in 8m/s～80m/s speed (being speed per hour 28.8km～288km) scope, 1kg～5kg weight is to fiery explosive, organic glass forms accidental impact, can also effectively test 5kg object strikes emissive plastic glazing or other materials etc. the Pneumatic acceleration striking experiment method of harm effect of unscheduled event.
Purpose of the present invention is achieved through the following technical solutions:
A kind of Pneumatic acceleration striking experiment method comprises the following steps:
(1) installation and adjustment Pneumatic acceleration striking experiment device;
(2) installation and adjustment testing tool;
(3) be filled with predetermined pressure gas (except the hazardous gas such as hydrogen) to plenum chamber;
(4) start testing tool, connect the power supply of solenoid valve simultaneously, large quality impacting body clashes into measured body after accelerating tube accelerates;
(5) by testing tool read test result.
Wherein, in step (4) when the measured body front end does not arrange force transmission mechanism large quality impacting body directly clash into measured body after accelerating and pass the installing port of anti-explosion tank right-hand member; When the measured body front end is provided with force transmission mechanism, large quality impacting body clashes into measured body by transmission rod after accelerating.
Step (1) comprises the following steps:
(1a) debugging electromagnetically induced valve, and large quality impacting body is arranged on to the precalculated position in accelerating tube;
(1b) debug anti-explosion tank and target plate, and make the vertical relation of the installing port of the maintenance of large quality impacting body and target plate and anti-explosion tank;
(1c) measured body is arranged on stationary fixture;
In order to realize better the present invention, testing tool in step (2) comprises the photoelectricity test instrument of testing large quality impacting body speed, the sensor of the suffered dynamic pressure of test measured body and oscillograph and with the supporting signal converter of this sensor, described sensor is arranged on the measured body in step (1c).
In order to ensure effect, also need to install force transmission mechanism when the measured body front end is provided with transmission rod, and makes the end face centering laminating of end face with the large quality impacting body of transmission rod; Pulse-width modulator also is installed in advance on described force transmission mechanism.
The present invention compares than prior art, has the following advantages and beneficial effect:
(1) not only accurate positioning, step are simple for Pneumatic acceleration striking experiment method of the present invention, easy to operate, large quality impacting body is reusable, can also read multiple dynamic impact parameter by testing tool, therefore can effectively test in 8m/s～80m/s speed (being speed per hour 28.8km～288km) scope, the accidental impact of 2kg～5kg weight to fiery explosive, or the harm effect of quality 1kg～5kg object strikes emissive plastic glazing or other materials unscheduled event.
(2) the present invention is by debugging anti-explosion tank and target plate, and make large quality impacting body keep with anti-explosion tank in the vertical relation of target plate right side, thereby transmission rod is clashed in the path along near linear after can making impacting body accelerate, when not using force transmission mechanism, impacting body can be directly through the installing port of anti-explosion tank, and then guarantee effect power is clashed into and is arranged on the measured body on target plate with the direction vertical with target plate.
(3) testing tool of the present invention comprises the photoelectricity test instrument of testing large quality impacting body speed, the sensor of the suffered dynamic pressure of test measured body, displacement and with supporting strain amplifier, the oscillograph of this sensor, described sensor is arranged on the measured body in step (1c).Can test and show the stroke speed of large quality impacting body by the photoelectricity test instrument, suffered dynamic pressure, displacement in the time of can responding to measured body and be knocked by sensor, simultaneously, dynamic pressure, displacement information that sensor is sensed it are passed to oscillograph, by oscillograph, can read intuitively dynamic pressure information.
(4) when being provided with force transmission mechanism, the measured body front end also needs to install force transmission mechanism before measured body is installed in experimental technique of the present invention, and the end face of the transmission rod in force transmission mechanism and the end face of large quality impacting body can axis centering be fitted, thereby make large quality impacting body can effectively clash into measured body by this transmission rod; Simultaneously, pulse-width modulator also is installed on described force transmission mechanism in advance, the action time by the conveniently adjusted large quality impacting body of this pulse-width modulator to measured body.
The accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is the one-piece construction schematic diagram of measured body front end of the present invention while being provided with force transmission mechanism.
Wherein, the corresponding name of the Reference numeral in accompanying drawing is called:
1-base, 2-anti-explosion tank, 3-accelerating tube, 4-plenum chamber, 5-large quality impacting body, 6-measured body, 7-target plate, 8-stationary fixture, 9-force transmission mechanism, 10-electromagnetically induced valve, 11-support, 12-force transmission mechanism support.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
As shown in Figure 1, the Pneumatic acceleration striking experiment device that the present invention uses, mainly be comprised of base 1, on described base 1, also is provided with charging assembly.Described charging assembly comprises accelerating tube 3, for the ease of firmly supporting accelerating tube 3, on described base 1, also is provided with support 11, and 3 of described accelerating tubes are fixed on support 11.Simultaneously, in described accelerating tube 3 inside, large quality impacting body 5 also is installed, and the front end of this accelerating tube 3 is open end, and described large quality impacting body 5 is arranged on the rear end of accelerating tube 3.Large quality impacting body 5 of the present invention is large quality hammer or large quality bullet, can be also and large quality hammer or the large similar parts of quality bullet.For the ease of to large quality impacting body 5, providing power, in the junction, right side of described accelerating tube 3, also be provided with plenum chamber 4.
During use, can use the devices such as air compressor or high pressure gas holder to be filled with the gas of predetermined pressure to plenum chamber 4.For the ease of automatically opening plenum chamber 4, make the gases at high pressure in plenum chamber 4 enter in accelerating tube 3 the large quality impacting body 5 of rear promotion that expands rapidly along accelerating tube 3 accelerated motions, impacting body 5 reaches predetermined speed while arriving accelerating tube 3 left port, also is provided with the electromagnetically induced valve 10 of opening plenum chamber 4 between described accelerating tube 3 and plenum chamber 4.During use, connect the power supply of electromagnetically induced valve 10, can open rapidly plenum chamber 4.
Simultaneously, on described base 1, also be provided with anti-explosion tank 2, described anti-explosion tank 2 is fixed on base 1, and this anti-explosion tank 2 has a plurality of installing ports, so that miscellaneous part is installed while using.Be provided with target plate 7 in described anti-explosion tank 2 inside, simultaneously, on this target plate 7, also be provided with stationary fixture 8, on described stationary fixture 8, measured body 6 is installed, after described large quality impacting body 5 accelerates, pass the installing port of anti-explosion tank 2 and clash into measured body 6.
Not only measuring accuracy is high, simple to operate for Pneumatic acceleration striking experiment method of the present invention, and with low cost, large quality impacting body is reusable, its base is provided with anti-explosion tank, measured body is arranged in anti-explosion tank, can effectively protect the 30gTNT explosive yield by this anti-explosion tank, thereby prevent in experimentation the accident that meets accident.Large quality impacting body is arranged in accelerating tube, open plenum chamber during use and gases at high pressure expanded rapidly and promote large quality impacting body so that large quality impacting body is accelerated, clash into measured body after making large quality impacting body reach the speed of test request, suffered dynamic pressure when movement velocity that can the large quality impacting body of use test instrument test and measured body are knocked, thereby can effectively test in 8m/s～80m/s speed (being speed per hour 28.8km～288km) scope, accidental impact for 2kg～5kg weight to fiery explosive, or at 1kg～materials such as 5kg object strikes band predetermined configuration emissive plastic glazing the harm effect in unscheduled event.
Before experiment, need first installation and adjustment Pneumatic acceleration striking experiment device, at first debug electromagnetically induced valve 10, make electromagnetically induced valve 10 can open reliably plenum chamber 4, and large quality impacting body 5 is arranged on the precalculated position in accelerating tube 3.Then debug anti-explosion tank 2 and target plate 7, make large quality impacting body 5 keep the vertical relation with the right output port of target plate 7 and anti-explosion tank 2, even large quality impacting body 5 can be along the center line movement of installing port, and its acting force is vertically acted on target plate 7.Then measured body 6 is arranged on stationary fixture 8, and stationary fixture 8 accurately is arranged on target plate 7.The measured body 6 used in the present embodiment is gunpowder, explosive or organic glass with predetermined configuration, and this measured body 6 can be also other article.
Next need the installation and adjustment testing tool, described testing tool comprises the photoelectricity test instrument of testing large quality impacting body 5 movement velocitys, the sensor of the suffered dynamic pressure of test measured body 6 and oscillograph and with the supporting signal converter of this sensor.Described installation of sensors is on measured body 6, so that dynamic pressure, the displacement of induction measured body 6 while being subject to clashing into, this sensor is passed to signal converter by dynamic pressure, the displacement information sensed, and be passed to again oscillograph after by signal converter, signal being changed, oscillograph is shown this dynamic pressure, displacement, stored, so that the experimenter gathers this test data.
Then use aerating device to be filled with predetermined pressure gas in plenum chamber 4, the dielectric gas used in the present embodiment is nitrogen or helium, and this dielectric gas can be also other gases except hydrogen.Next can start the testing tools such as light electric tachometer and oscillograph, connect the power supply of solenoid valve 10 simultaneously and open plenum chamber 4, gases at high pressure in plenum chamber 4 expand rapidly and promote large quality impacting body 5 and accelerate rapidly and move along the path of near linear along accelerating tube 3, after the installing port that then large quality impacting body 5 passes on anti-explosion tank 2, directly clash into measured body 6.Dynamic pressure, displacement information that sensor on measured body 6 is subject to measured body in knockout process 6 are passed to oscillograph, photoelectricity test speed instrument is tested rear demonstration by the speed in large quality impacting body 5 motion processes, by the fast instrument of this oscillograph and photoelectricity test direct read test result.
As shown in Figure 2, one-piece construction in the present embodiment is substantially the same manner as Example 1, unique difference only is also to be provided with force transmission mechanism at described measured body 6 front ends, described force transmission mechanism comprises the force transmission mechanism 9 that is arranged on measured body 6 front ends and the force transferring structure support 12 that supports this force transmission mechanism 9, and described force transmission mechanism 9 comprises transmission rod and is connected to the impact damper on transmission rod.The measured body 6 that described force transmission mechanism 9 clashes into is arranged on stationary fixture 8, and transmission rod can also accurately move along force transferring structure support 12 left and right.
The present embodiment is arranged on stationary fixture 8 and by stationary fixture 8 and is arranged on target plate 7 and needs to install force transmission mechanism before right side at measured body 6, and the end face centering laminating of the end face that makes transmission rod and large quality impacting body 5, so that large quality impacting body 5 its contact area maximum while clashing into transmission rod.On described force transmission mechanism 9, pulse-width modulator can also be installed in advance, so that regulate the action time that 5 pairs of measured bodies of large quality impacting body 6 clash into.
During test; after accelerating, large quality impacting body 5 at first clashes into the transmission rod on force transmission mechanism 9; transmission rod is subject to clashing into pulse-width modulator and measured body 6 after the shock of large quality impacting body 5; thereby the impact of large quality impacting body 5 is passed to measured body 6; can make large quality impacting body 5 not act directly on measured body 6, thereby can protect the effect end of large quality impacting body 5 not damage because of measured body 6.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a Pneumatic acceleration striking experiment method, is characterized in that, comprises the following steps:
(1) installation and adjustment Pneumatic acceleration striking experiment device;
(2) installation and adjustment testing tool;
(3) to plenum chamber, inflate;
(4) start testing tool, connect the power supply of solenoid valve simultaneously, large quality impacting body clashes into measured body after accelerating tube accelerates;
(5) by testing tool read test result.
2. according to a kind of Pneumatic acceleration striking experiment method claimed in claim 1, it is characterized in that, in step (4) when the measured body front end does not arrange force transmission mechanism large quality impacting body accelerate and pass after the installing port on anti-explosion tank and directly clash into measured body; When the measured body front end is provided with force transmission mechanism, large quality impacting body clashes into measured body by force transmission mechanism after accelerating.
3. according to a kind of described Pneumatic acceleration striking experiment method of claim 1 or 2, it is characterized in that, step (1) comprises the following steps:
(1a) debugging electromagnetically induced valve, and large quality impacting body is arranged on to the precalculated position in accelerating tube;
(1b) debug anti-explosion tank and target plate, and make the vertical relation of the installing port of the maintenance of large quality impacting body and target plate and anti-explosion tank;
(1c) measured body is arranged on stationary fixture.
4. according to a kind of Pneumatic acceleration striking experiment method claimed in claim 3, it is characterized in that: the testing tool in step (2) comprises the photoelectricity test instrument of testing large quality impacting body speed, the sensor of the suffered dynamic pressure of test measured body, displacement and oscillograph and with the supporting signal converter of this sensor, described sensor is arranged on the measured body in step (1c).
5. according to a kind of Pneumatic acceleration striking experiment method claimed in claim 4, it is characterized in that: also need to install force transmission mechanism installing measured body when the measured body front end is provided with force transmission mechanism before, and make the end face centering laminating of end face with the large quality impacting body of transmission rod; Pulse-width modulator also is installed in advance on described force transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424872.6A CN103471943B (en) | 2013-09-17 | 2013-09-17 | A kind of Pneumatic acceleration striking experiment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310424872.6A CN103471943B (en) | 2013-09-17 | 2013-09-17 | A kind of Pneumatic acceleration striking experiment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103471943A true CN103471943A (en) | 2013-12-25 |
| CN103471943B CN103471943B (en) | 2015-10-14 |
Family
ID=49796884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310424872.6A Active CN103471943B (en) | 2013-09-17 | 2013-09-17 | A kind of Pneumatic acceleration striking experiment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103471943B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954513A (en) * | 2014-05-13 | 2014-07-30 | 中国工程物理研究院化工材料研究所 | High-drop precision drop hammer impact test device of explosive and other materials |
| CN104089833A (en) * | 2014-07-22 | 2014-10-08 | 南昌航空大学 | Pneumatic material impact test device simulating shooting of bullet (cannonball) |
| CN104655388A (en) * | 2015-03-18 | 2015-05-27 | 吉林大学 | High-speed collision experiment testing device for vehicle power battery |
| CN105953997A (en) * | 2016-07-15 | 2016-09-21 | 芜湖赛宝信息产业技术研究院有限公司 | High-acceleration impact testing machine |
| CN106017208A (en) * | 2016-07-15 | 2016-10-12 | 中国工程物理研究院总体工程研究所 | Integrated firing device of heavy air cannon |
| CN104267208B (en) * | 2014-09-18 | 2017-09-08 | 西安近代化学研究所 | A kind of diaphragm that tests the speed for the one-dimensional treadmill test of explosive |
| CN107505215A (en) * | 2017-08-07 | 2017-12-22 | 武汉大学 | A kind of impact test apparatus |
| CN108469451A (en) * | 2018-03-22 | 2018-08-31 | 中国工程物理研究院化工材料研究所 | A kind of explosive material is hit and disintegrating slag retracting device |
| CN109813517A (en) * | 2019-01-28 | 2019-05-28 | 西安工业大学 | A kind of high-speed motion body emitter and its launching technique based on electromagnetism acceleration |
| CN110082288A (en) * | 2019-06-04 | 2019-08-02 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig |
| CN112378613A (en) * | 2021-01-18 | 2021-02-19 | 江西江铃集团奥威汽车零部件有限公司 | Device for detecting performance of automobile engine baffle |
| CN112697616A (en) * | 2020-12-17 | 2021-04-23 | 南京理工大学 | Test method suitable for flat plate impact |
| CN114354149A (en) * | 2021-12-02 | 2022-04-15 | 浙江美盾防护技术有限公司 | Test fixing device of multi-angle bulletproof plate wall |
| CN115266423A (en) * | 2022-08-10 | 2022-11-01 | 哈尔滨工业大学 | Penetration test device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10009987A1 (en) * | 2000-03-01 | 2001-09-06 | Heinz Kreiskorte | Test device for generating shock and impact loads, has mass that strikes test object via striking head, when mass accelerates to test speed via the supply of compressed air in cylinder |
| CN101498637A (en) * | 2009-03-11 | 2009-08-05 | 太仓市璜泾镇锐杰实验仪器制造厂 | High-speed particle impact test apparatus |
| CN101504347A (en) * | 2008-02-04 | 2009-08-12 | 西北工业大学 | Material dynamic double-pressing and shearing experimental device based on Hopkinson rod |
| CN102680337A (en) * | 2011-12-06 | 2012-09-19 | 河南科技大学 | Test method of high-speed cold hitting simulated experiment |
-
2013
- 2013-09-17 CN CN201310424872.6A patent/CN103471943B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10009987A1 (en) * | 2000-03-01 | 2001-09-06 | Heinz Kreiskorte | Test device for generating shock and impact loads, has mass that strikes test object via striking head, when mass accelerates to test speed via the supply of compressed air in cylinder |
| CN101504347A (en) * | 2008-02-04 | 2009-08-12 | 西北工业大学 | Material dynamic double-pressing and shearing experimental device based on Hopkinson rod |
| CN101498637A (en) * | 2009-03-11 | 2009-08-05 | 太仓市璜泾镇锐杰实验仪器制造厂 | High-speed particle impact test apparatus |
| CN102680337A (en) * | 2011-12-06 | 2012-09-19 | 河南科技大学 | Test method of high-speed cold hitting simulated experiment |
Non-Patent Citations (1)
| Title |
|---|
| 花成等: "RDX与D-RDX基PBX炸药撞击安全性研究", 《含能材料》, vol. 18, no. 5, 31 December 2010 (2010-12-31) * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954513A (en) * | 2014-05-13 | 2014-07-30 | 中国工程物理研究院化工材料研究所 | High-drop precision drop hammer impact test device of explosive and other materials |
| CN104089833A (en) * | 2014-07-22 | 2014-10-08 | 南昌航空大学 | Pneumatic material impact test device simulating shooting of bullet (cannonball) |
| CN104267208B (en) * | 2014-09-18 | 2017-09-08 | 西安近代化学研究所 | A kind of diaphragm that tests the speed for the one-dimensional treadmill test of explosive |
| CN104655388A (en) * | 2015-03-18 | 2015-05-27 | 吉林大学 | High-speed collision experiment testing device for vehicle power battery |
| CN104655388B (en) * | 2015-03-18 | 2017-03-29 | 吉林大学 | A kind of Vehicular dynamic battery high velocity impact experiment test device |
| CN105953997B (en) * | 2016-07-15 | 2018-10-02 | 芜湖赛宝信息产业技术研究院有限公司 | A kind of high acceleration shock testing machine |
| CN105953997A (en) * | 2016-07-15 | 2016-09-21 | 芜湖赛宝信息产业技术研究院有限公司 | High-acceleration impact testing machine |
| CN106017208A (en) * | 2016-07-15 | 2016-10-12 | 中国工程物理研究院总体工程研究所 | Integrated firing device of heavy air cannon |
| CN107505215A (en) * | 2017-08-07 | 2017-12-22 | 武汉大学 | A kind of impact test apparatus |
| CN108469451A (en) * | 2018-03-22 | 2018-08-31 | 中国工程物理研究院化工材料研究所 | A kind of explosive material is hit and disintegrating slag retracting device |
| CN108469451B (en) * | 2018-03-22 | 2020-11-03 | 中国工程物理研究院化工材料研究所 | Explosive material striking and disintegrating slag recovery unit |
| CN109813517A (en) * | 2019-01-28 | 2019-05-28 | 西安工业大学 | A kind of high-speed motion body emitter and its launching technique based on electromagnetism acceleration |
| CN109813517B (en) * | 2019-01-28 | 2023-11-10 | 西安工业大学 | High-speed moving body transmitting device based on electromagnetic acceleration and transmitting method thereof |
| CN110082288A (en) * | 2019-06-04 | 2019-08-02 | 西安近代化学研究所 | A kind of explosive impact damage experimental rig |
| CN112697616A (en) * | 2020-12-17 | 2021-04-23 | 南京理工大学 | Test method suitable for flat plate impact |
| CN112378613A (en) * | 2021-01-18 | 2021-02-19 | 江西江铃集团奥威汽车零部件有限公司 | Device for detecting performance of automobile engine baffle |
| CN114354149A (en) * | 2021-12-02 | 2022-04-15 | 浙江美盾防护技术有限公司 | Test fixing device of multi-angle bulletproof plate wall |
| CN115266423A (en) * | 2022-08-10 | 2022-11-01 | 哈尔滨工业大学 | Penetration test device |
| CN115266423B (en) * | 2022-08-10 | 2024-09-20 | 哈尔滨工业大学 | Penetration test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103471943B (en) | 2015-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103471943B (en) | A kind of Pneumatic acceleration striking experiment method | |
| CN105004502A (en) | Airbag linear impact test platform and test method | |
| CN204882023U (en) | Linear collision test platform of air bag | |
| CN101458152B (en) | High g value impact acceleration simulation test system and method , test method and application | |
| US10415946B2 (en) | Wheel center hole size qualification detection device | |
| KR20100020281A (en) | Apparatus for testing crash | |
| CN103048075B (en) | A kind of impact force testing device | |
| CN204085836U (en) | A kind of Gas Gun formula shock response spectrum testing machine | |
| CN204461706U (en) | A kind of Vehicular dynamic battery high velocity impact experiment test device | |
| CN103017996A (en) | High-magnitude strong-impact test method | |
| CN102200485A (en) | Hailstone testing machine for solar photovoltaic module | |
| CN105605976A (en) | Gas catapulting device | |
| CN101241037A (en) | Ice hockey emitter for detecting anti-collision of solar cell module | |
| CN210422805U (en) | Large-scale solid rocket grain structural integrity test device | |
| CN107854799B (en) | Multi-scene electrical short circuit simulation experiment device and method | |
| CN204998768U (en) | Unmanned aerial vehicle protects trigger device | |
| CN205317439U (en) | Pneumatic perpendicular impact test machine of big high g value of load | |
| CN103115745B (en) | Hypersonic shock tunnel hanging pendulum type relief means | |
| CN212539571U (en) | High-energy level impact test bench | |
| CN104897359A (en) | Simple identification device for collision between tail of large-slenderness-ratio model and support rod | |
| CN103759873B (en) | A kind of negative step force pilot system | |
| CN202511760U (en) | Nail gun test device | |
| CN104062126A (en) | Novel centring device for engine simulation experiment | |
| CN102620659B (en) | Nail gun test device and nail gun test method | |
| CN104165745B (en) | A kind of disc spring drive-type impact test apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |