CN110542530A - Anti-knock testing device and experimental method thereof - Google Patents
Anti-knock testing device and experimental method thereof Download PDFInfo
- Publication number
- CN110542530A CN110542530A CN201910893781.4A CN201910893781A CN110542530A CN 110542530 A CN110542530 A CN 110542530A CN 201910893781 A CN201910893781 A CN 201910893781A CN 110542530 A CN110542530 A CN 110542530A
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- sensor
- pdv
- cabin
- test
- antiknock
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- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 238000002474 experimental method Methods 0.000 title claims abstract description 7
- 238000004088 simulation Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 31
- 239000002360 explosive Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims description 2
- 238000000827 velocimetry Methods 0.000 claims 1
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses an anti-knock testing device and an experimental method thereof, wherein the device comprises a simulation cabin, a cabin end cover and a testing system, wherein a clamping device is arranged on the cabin end cover, a sample is fixed on the cabin end cover by the clamping device, a mounting hole is formed in the bottom of the simulation cabin and used for mounting a sensor support, the sensor support is fixed at the bottom of the simulation cabin through a first nut, a sensor base is mounted on the sensor support, and a sensor is mounted on the sensor base. The antiknock testing device integrates various advanced testing technologies, adopts a joint diagnosis method to comprehensively evaluate the antiknock effect, and has the advantages of simplicity in operation, good reliability and the like.
Description
Technical Field
The invention relates to a testing device, in particular to an anti-knock testing device and an experimental method thereof.
Background
The method has important significance for developing research on the anti-explosion performance of materials or structures and improving the anti-explosion performance of armored vehicles. The conventional anti-knock test device is often designed more coarsely and has fewer test items. In order to better characterize the antiknock performance of a material or structure, more elaborate tests and the addition of advanced test items are required.
Disclosure of Invention
The invention aims to provide an anti-knock testing device and an experimental method thereof, which are integrated with a plurality of testing means, the device can continuously change the installation type, the installation distance and the like of a sensor according to different use scenes, and a multi-system joint diagnosis test can provide more and more reliable data.
In order to achieve the technical effects, the invention provides the following technical scheme: the utility model provides an antiknock testing arrangement, includes simulation cabin, cabin end cover and test system, be provided with clamping device on the cabin end cover, clamping device fixes the sample on the cabin end cover, and simulation cabin bottom is provided with the mounting hole for the installation sensor support, the sensor support is fixed in simulation cabin bottom through first nut, installs the sensor base on the sensor support, and the sensor is installed on the sensor base.
The further technical scheme is that the test system is selected from any one or more of a PDV speed measurement system, a pressure test system, a back plate speed test, an under-cabin overpressure test and an under-cabin sound field test.
The further technical scheme is that the clamping device consists of a clamp, a second nut and a bolt, wherein the clamp fixes the sample and the cabin end cover together and fastens the sample and the cabin end cover by adjusting the position of the second nut.
a further technical scheme is that the lower end of the sensor support is prefabricated with threads, the relative position of the sensor support and the simulation cabin can be adjusted at will by adjusting the position of the first nut, and the sensor support is designed in a hollow mode so that a test cable can be connected into the simulation cabin conveniently.
The PDV speed measurement system comprises a PDV support, a guide column, a PDV base and a PDV probe, wherein the PDV support is fixed on a sensor support, the guide column is installed on the PDV support, the PDV base is installed on the guide column, the PDV probe is installed on the PDV base, and the position of the PDV probe can be indirectly adjusted by adjusting the position of the guide column in the PDV support.
The further technical scheme is that a PCB sensor is fixed at the bottom in the simulation cabin.
The further technical scheme is that the pressure testing system comprises a pressure sensor, and the pressure sensor is installed on a sensor base.
The invention also provides an experimental method of the anti-knock testing device, which is characterized in that the testing device is fixed, a tested sample is placed above a cabin end cover of the testing device, then an explosive component is assembled on the cabin end cover, the explosive is detonated after the testing device is ready, and the attenuation effect of the sample on shock waves is obtained through test data analysis.
The sensor in this application can adjust its and tested the distance of sample wantonly through sensor support, adaptable different experimental scene demands. The tail end of the sensor support can be replaced by a corresponding base according to different sensor types, and the sensor support is suitable for installation of various sensors.
The PDV speed measurement system in the device is mainly used for testing the speed characteristics of the back surface of a sample after the back surface is impacted by explosion, and the pressure test system is mainly used for testing the pressure value of the interior of a cabin after the explosion impact waves are attenuated by the sample. Fixing the testing device, placing the tested sample above a cabin end cover of the testing device, assembling an explosive component on the cabin end cover, detonating the explosive after the explosive component is ready, and analyzing test data to obtain the attenuation effect of the sample on the shock wave.
compared with the prior art, the invention has the following beneficial effects: the invention adopts the bracket to flexibly position and install the tail end of the test system, can constantly change the installation type, the installation distance and the like of the sensor according to different use scenes, integrates various advanced test technologies, adopts a joint diagnosis method to comprehensively evaluate the anti-knock effect, and has the advantages of simple operation, good reliability and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the testing device of the present invention;
FIG. 2 is a schematic structural view of a sensor holder according to the present invention;
The device comprises a cabin end cover, a sample, a 3-PDV probe, a 4-PDV base, a clamp, a second nut, a bolt, a guide column, a pressure sensor, a sensor base, a sensor support, a 12-PDV support, a first nut, a PCB sensor, a simulated cabin and a sensor of different types, wherein the cabin end cover is 1, the sample is 2, the PDV probe is 3, the PDV base is 5, the clamp is 6, the second nut is 7, the bolt is 8, the guide column is 9, the pressure sensor is 10, the sensor base is 11.
Detailed Description
The invention will be further explained and explained with reference to the drawings and the detailed description.
Example 1
As shown in fig. 1-2, the present invention provides an anti-knock testing apparatus, which comprises a simulation cabin, a cabin end cover and a testing system, and mainly comprises: the device comprises a cabin end cover 1, a sample 2, a PDV probe 3, a PDV base 4, a clamp 5, a nut 6, a bolt 7, a guide column 8, a pressure sensor 9, a sensor base 10, a sensor support 11, a PDV support 12, a special nut 13, a PCB sensor 14 and a simulation cabin 15.
The bottom end of the simulation cabin 15 is prefabricated with a mounting hole of the sensor support 11, the sensor support 11 is fixed on the simulation cabin 15 through the first nut 13, the lower end of the sensor support 11 is prefabricated with threads, the relative position of the sensor support 11 and the simulation cabin 15 can be adjusted freely by adjusting the position of the first nut 13, and the sensor support 11 is designed in a hollow mode so that a test cable can be connected into the simulation cabin 15 conveniently. The sensor base 10 is connected with the sensor support 11 by screw threads, the sensor base 10 is provided with corresponding interfaces with different types of sensors 16, and various types of sensors 16 are arranged on the sensor base 10 and comprise the pressure sensor 9. The PDV bracket 12 is fixed on the 2 sensor brackets 11, the guide post 8 is arranged on the PDV bracket 12, the PDV base 4 is arranged on the guide post 8, the PDV probe 3 is arranged on the PDV base 4, and the position of the PDV probe 3 can be indirectly adjusted by adjusting the position of the guide post 8 in the PDV bracket 12. The PCB sensor 14 is separately fixed to the bottom end of the analog compartment 15 due to its large height.
The clamp 5, the second nut 6 and the bolt 7 form a simple clamping device, a flange plate extends outwards from the upper end of the simulation cabin 15, and the cabin end cover 1 and the sample 2 can be installed and fixed on the simulation cabin 15 through the simple clamping device.
During testing, the tool is assembled, the testing system is connected properly according to testing requirements, the explosive is installed at the upper end of the sample 2, the test data is detonated and recorded, a test site is cleaned and the data is processed, and the anti-detonation effect of the material is analyzed and evaluated according to the data such as mass point speed of the back surface of the sample 2 and overpressure in the simulation cabin 15.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (8)
1. The utility model provides an antiknock testing arrangement, its characterized in that, includes simulation cabin, cabin end cover and test system, be provided with clamping device on the cabin end cover, clamping device fixes the sample on the cabin end cover, and simulation cabin bottom of the body is provided with the mounting hole for the installation sensor support, the sensor support is fixed in simulation cabin bottom through first nut, installs the sensor base on the sensor support, and the sensor is installed on the sensor base.
2. The antiknock test apparatus of claim 1, wherein the test system is selected from any one or more of a PDV velocimetry system, a pressure test system, a backplate velocity test, an in-cabin overpressure test, and an in-cabin sound field test.
3. The antiknock test apparatus of claim 1, wherein the clamping means is comprised of a clamp, a second nut, and a bolt, the clamp securing the sample and the chamber end cap together and tightening by adjusting the position of the second nut.
4. The antiknock test apparatus of claim 1, wherein the lower end of the sensor bracket is pre-threaded, the relative position of the sensor bracket and the simulation chamber can be adjusted by adjusting the position of the first nut, and the sensor bracket is hollow so that the test cable can be conveniently connected to the simulation chamber.
5. The antiknock test device of claim 2, wherein the PDV velocity measurement system includes a PDV mount, a guide post, a PDV base, and a PDV probe, the PDV mount is fixed to the sensor mount, the guide post is mounted to the PDV mount, the PDV base is mounted to the guide post, the PDV probe is mounted to the PDV base, and the PDV probe is indirectly adjustable in position by adjusting the position of the guide post in the PDV mount.
6. The antiknock testing apparatus of claim 1, wherein a PCB sensor is further secured to the bottom of the simulation chamber.
7. The antiknock testing apparatus of claim 2, wherein the pressure testing system includes a pressure sensor mounted on a sensor base.
8. The experimental method of the anti-knock testing device is characterized in that the testing device is fixed, a tested sample is placed above a cabin end cover of the testing device, then an explosive component is assembled on the cabin end cover, the explosive is detonated after the testing device is ready, and the attenuation effect of the sample on shock waves is obtained through test data analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893781.4A CN110542530A (en) | 2019-09-20 | 2019-09-20 | Anti-knock testing device and experimental method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893781.4A CN110542530A (en) | 2019-09-20 | 2019-09-20 | Anti-knock testing device and experimental method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110542530A true CN110542530A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910893781.4A Pending CN110542530A (en) | 2019-09-20 | 2019-09-20 | Anti-knock testing device and experimental method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111707431A (en) * | 2020-05-13 | 2020-09-25 | 清华大学 | Device and method for testing explosion-proof shock wave performance of cabin protection structure |
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2019
- 2019-09-20 CN CN201910893781.4A patent/CN110542530A/en active Pending
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| CN204202553U (en) * | 2014-10-22 | 2015-03-11 | 广西电网公司电力科学研究院 | A kind of rupture disk state monitoring apparatus |
| CN107655933A (en) * | 2017-09-20 | 2018-02-02 | 西安近代化学研究所 | A kind of high explosive expansion characteristics parameter measuring apparatus |
| CN208505806U (en) * | 2018-07-16 | 2019-02-15 | 西南科技大学 | A kind of explosively loading device based on uniaxial train condition |
| CN109781554A (en) * | 2019-03-05 | 2019-05-21 | 西南交通大学 | Ballisticimpact oscillator system and ballisticimpact put measuring system |
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| CN111707431A (en) * | 2020-05-13 | 2020-09-25 | 清华大学 | Device and method for testing explosion-proof shock wave performance of cabin protection structure |
| CN111707431B (en) * | 2020-05-13 | 2021-06-11 | 清华大学 | Device and method for testing explosion-proof shock wave performance of cabin protection structure |
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