CN103822753B - Simulation deepwater environment explosive test container implode impact wave pressure measurer - Google Patents
Simulation deepwater environment explosive test container implode impact wave pressure measurer Download PDFInfo
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- CN103822753B CN103822753B CN201410104940.5A CN201410104940A CN103822753B CN 103822753 B CN103822753 B CN 103822753B CN 201410104940 A CN201410104940 A CN 201410104940A CN 103822753 B CN103822753 B CN 103822753B
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Abstract
The present invention relates to a kind of simulation deepwater environment explosive test container implode impact wave pressure measurer.Its technical scheme is: be fixed with upper metal bar (1) and lower metal bar (11) accordingly in the upper inside wall and bottom of simulating deepwater environment explosive test container (4); 3 ~ 8 iron wires (10) are vertically connected with, the top and bottom of every root iron wire (10) and upper metal bar (1) and lower metal bar (11) is corresponding connects in spherical explosive (2) side; Every root iron wire (10) is fixed with piezoelectric transducer (5) respectively, each piezoelectric transducer (5) and spherical explosive (2) are positioned on same level line, each piezoelectric transducer (5) is electrically connected with data collecting card (9) by respective coaxial test cable (3), data collecting card (9) is connected with computing machine (7) by netting twine (8), and computing machine (7) is built with explosion wave pressure test software.The present invention has test feature accurate, safe and reliable, easy for installation and with low cost.<u />
Description
Technical field
The invention belongs to underwater blast wave pressure test field.Be specifically related to a kind of simulation deepwater environment explosive test container implode impact wave pressure measurer.
Technical background
Along with human society utilizes the Devoting Major Efforts To Developing of rivers,lakes and seas resource, submarine blast is more and more widely used in all kinds of Underwater Engineering, as waterway dredging, seismic prospecting and deep water reef explosion etc.Submarine blast belongs to multiple coupled cross discipline, and due to its complicacy, research is always based on experiment.In order to better carry out the research of underwater engineering blasting technology, many scientific research institutions start to introduce satisfactory simulation deepwater environment explosive test container.
Utilize underwater blast wave pressure test device to monitor underwater blast wave, and then carry out scientific research to the propagation law of underwater blast wave, this is the method generally adopted.At present, in the underwater blast wave pressure test device used, pressure transducer is separated with charge amplifier, and is connected by long cable, explosion wave pressure signal by changing by external magnetic field effect in long cable process, thus makes test result occur relatively large deviation; In existing simulation deepwater environment explosive test container implode impact wave pressure measurer, mainly pass through the rope of suspension strap counterweight or be used for fixation pressure sensor at simulation deepwater environment explosive test container inner wall weld metal base.When carrying out the explosive test of simulation deepwater environment, for recording the underwater blast wave pressure at the distance spherical explosive diverse location place at same depth of water place in simulation deepwater environment explosive test container, there is poor reliability in existing proving installation, sensor is fixing loosely, point position is difficult to the problems such as replacing, can not meet test demand.
Summary of the invention
The present invention is intended to overcome prior art defect, and object is to provide a kind ofly tests simulation deepwater environment explosive test container implode impact wave pressure measurer accurate, safe and reliable, easy for installation and with low cost.
For achieving the above object, the present invention adopts following technical scheme: described device comprises piezoelectric transducer, data collecting card and computing machine.Spherical explosive is equipped with at simulation deepwater environment explosive test container center place, is fixed with upper metal bar and lower metal bar accordingly in the upper inside wall and bottom simulating deepwater environment explosive test container.3 ~ 8 iron wires are vertically connected with in spherical explosive side, one end of every root iron wire is fixedly connected with upper metal bar, the other end is fixedly connected with lower metal bar, and be 200mm ~ 400mm near first iron wire of spherical explosive and the distance of spherical explosive, the spacing of every root iron wire is equal.
Every root iron wire is fixed with piezoelectric transducer respectively, each piezoelectric transducer and spherical explosive are positioned on same level line, each piezoelectric transducer is electrically connected with data collecting card through Splices cable dish by respective coaxial test cable, data collecting card is connected with computing machine by netting twine, and computing machine is built with explosion wave pressure test software.
Described spherical explosive is the spherical explosive that the precision of surface comprises metal cover parcel press-fits.
Described upper metal bar is identical with the diameter of lower metal bar, and the diameter of upper metal bar and lower metal bar is 20 ~ 40mm.
The diameter of described 3 ~ 8 iron wires is identical, and the diameter of every root iron wire is 1 ~ 3mm.
In the main flow of described explosion wave pressure test software:
represent piezoelectric transducer respectively at the blast impulse wave pressure that timing point n gathers;
represent the explosion wave pressure peak that each piezoelectric transducer gathers; I represents piezoelectric transducer serial number from inside to outside, and i is the natural number of 1 ~ 8; N represents timing point sum, and N is 20000 ~ 50000.
The main flow of described explosion wave pressure test software is:
S1, initialization, arrange timing point sum N, timing point n=0,
S2, timing point add up n=n+1;
S3, respectively scan A/D1 ~ A/D8, record the blast impulse wave pressure that each piezoelectric transducer gathers
S4, judgement
whether be greater than
if be greater than
then perform S5, otherwise perform S6;
S5、
S6, judge whether n is greater than N, if be greater than N, perform S7, otherwise return S2;
S7, the data that each piezoelectric transducer is gathered, respectively with timing point n for horizontal ordinate, with piezoelectric transducer gather blast impulse wave pressure
for ordinate, draw underwater blast wave pressure curve, export
Owing to adopting technique scheme, the present invention compared with prior art has following good effect:
1, test accurately.Piezoelectric transducer in the present invention can be fixed on iron wire easily, iron wire is connected with lower metal bar with upper metal bar again, strain exceptionally straight after there is some tension, under water in blast process, ensure that piezoelectric transducer can not by underwater blast wave effect and depart from calibration position; Coaxial test cable, around on upper metal bar or lower metal bar, can prevent it to be subject to underwater blast wave effect and damaged, guarantees accurately to obtain explosion wave pressure signal.
2, safe and reliable.Data collecting card is connected with computing machine by netting twine, can realize the data transmission of long distance, guarantee the safety of tester and instrument.
3, easy for installation.The present invention, according to specifically testing demand, can change quantity and the position of iron wire and piezoelectric transducer, easy assembly and disassembly flexibly.
4, with low cost.Material therefor processing of the present invention is simple, low cost.
Therefore, the present invention has test feature accurate, safe and reliable, easy for installation and with low cost.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the main flow block diagram of explosion wave pressure test software of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, the restriction not to its protection domain.
Embodiment 1
A kind of simulation deepwater environment explosive test container implode impact wave pressure measurer.As shown in Figure 1, described device comprises piezoelectric transducer 5, data collecting card 9 and computing machine 7.Spherical explosive 2 is equipped with in simulation deepwater environment explosive test container 4 center, is fixed with upper metal bar 1 and lower metal bar 11 accordingly in the upper inside wall and bottom simulating deepwater environment explosive test container 4.5 iron wires 10 are vertically connected with in spherical explosive 2 side, one end of every root iron wire 10 is fixedly connected with upper metal bar 1, the other end is fixedly connected with lower metal bar 11, first iron wire 10 of close spherical explosive 2 is 200mm ~ 400mm with the distance of spherical explosive 2, and the spacing of every root iron wire 10 is equal.
As shown in Figure 1, every root iron wire 10 is fixed with piezoelectric transducer 5 respectively, each piezoelectric transducer 5 is positioned on same level line with spherical explosive 2, each piezoelectric transducer 5 is electrically connected with data collecting card 9 through Splices cable dish 6 by respective coaxial test cable 3, data collecting card 9 is connected with computing machine 7 by netting twine 8, and computing machine is built with explosion wave pressure test software.
Described spherical explosive 2 is spherical explosives that the precision of surface comprises metal cover parcel press-fits.
Described upper metal bar 1 is identical with the diameter of lower metal bar 11, and the diameter of upper metal bar 1 and lower metal bar 11 is 20 ~ 30mm.
The diameter of described 5 iron wires 10 is identical, and the diameter of every root iron wire 10 is 1 ~ 2mm.
In the main flow of described explosion wave pressure test software:
represent each piezoelectric transducer 5 respectively at the blast impulse wave pressure that timing point n gathers;
represent the explosion wave pressure peak that each piezoelectric transducer 5 gathers; I represents piezoelectric transducer 5 serial number from inside to outside, and i is the natural number of 1 ~ 8; N represents timing point sum, and N is 20000 ~ 50000.
The main flow of described explosion wave pressure test software is as shown in Figure 2:
S1, initialization, arrange timing point sum N, timing point n=0,
S2, timing point add up n=n+1;
S3, respectively scan A/D1 ~ A/D8, record the blast impulse wave pressure that each piezoelectric transducer 5 gathers
S4, judgement
whether be greater than
if be greater than
then perform S5, otherwise perform S6;
S5、
S6, judge whether n is greater than N, if be greater than N, perform S7, otherwise return S2;
S7, the data that each piezoelectric transducer 5 is gathered, respectively with timing point n for horizontal ordinate, the blast impulse wave pressure gathered with piezoelectric transducer 5
for ordinate, draw underwater blast wave pressure curve, export
Embodiment 2
A kind of simulation deepwater environment explosive test container implode impact wave pressure measurer.Except following technical parameter, all the other are with embodiment 1:
3 ~ 4 or 6 ~ 8 iron wires 10 are vertically connected with in spherical explosive 2 side;
The diameter of upper metal bar 1 and lower metal bar 11 is 30 ~ 40mm;
The diameter of described 3 ~ 4 or 6 ~ 8 iron wires 10 is identical, and the diameter of every root iron wire 10 is 2 ~ 3mm.
This embodiment compared with prior art has following good effect:
1, test accurately.Piezoelectric transducer 5 in this embodiment can be fixed on iron wire 10 easily, iron wire 10 is connected with lower metal bar 11 with upper metal bar 1 again, strain exceptionally straight after there is some tension, under water in blast process, ensure that piezoelectric transducer 5 can not depart from calibration position by underwater blast wave effect; Coaxial test cable on upper metal bar 1 or lower metal bar 11, can prevent it to be subject to underwater blast wave effect and damaged around 3, guarantees accurately to obtain explosion wave pressure signal.
2, safe and reliable.Data collecting card 9 is connected with computing machine 7 by netting twine 8, can realize the data transmission of long distance, guarantee the safety of tester and instrument.
3, easy for installation.This embodiment, according to specifically testing demand, can change quantity and the position of iron wire 10 and piezoelectric transducer 5, easy assembly and disassembly flexibly.
4, with low cost.The processing of this embodiment material therefor is simple, low cost.
Therefore, this embodiment has test feature accurate, safe and reliable, easy for installation and with low cost.
Claims (5)
1. simulate a deepwater environment explosive test container implode impact wave pressure measurer, it is characterized in that described device comprises piezoelectric transducer (5), data collecting card (9) and computing machine (7); Spherical explosive (2) is equipped with in simulation deepwater environment explosive test container (4) center, is fixed with upper metal bar (1) and lower metal bar (11) accordingly in the upper inside wall and bottom simulating deepwater environment explosive test container (4); 3 ~ 8 iron wires (10) are vertically connected with in spherical explosive (2) side, one end of every root iron wire (10) is fixedly connected with upper metal bar (1), the other end is fixedly connected with lower metal bar (11), close first iron wire (10) of spherical explosive (2) is 200mm ~ 400mm with the distance of spherical explosive (2), and the spacing of every root iron wire (10) is equal;
Every root iron wire (10) is fixed with piezoelectric transducer (5) respectively, each piezoelectric transducer (5) and spherical explosive (2) are positioned on same level line, each piezoelectric transducer (5) is electrically connected with data collecting card (9) through Splices cable dish (6) by respective coaxial test cable (3), data collecting card (9) is connected with computing machine (7) by netting twine (8), and computing machine (7) is built with explosion wave pressure test software.
2. the simulation deepwater environment explosive test container implode impact wave pressure measurer according to claims 1, is characterized in that described spherical explosive (2) is the spherical explosive that press-fits of precision of surface comprises metal cover parcel.
3. the simulation deepwater environment explosive test container implode impact wave pressure measurer according to claims 1, it is characterized in that described upper metal bar (1) is identical with the diameter of lower metal bar (11), the diameter of upper metal bar (1) and lower metal bar (11) is 20 ~ 40mm.
4. the simulation deepwater environment explosive test container implode impact wave pressure measurer according to claims 1, it is characterized in that the diameter of described 3 ~ 8 iron wires (10) is identical, the diameter of every root iron wire (10) is 1 ~ 3mm.
5. the simulation deepwater environment explosive test container implode impact wave pressure measurer according to claims 1, is characterized in that in the main flow of described explosion wave pressure test software:
represent each piezoelectric transducer (5) respectively at the blast impulse wave pressure that timing point n gathers;
represent the explosion wave pressure peak that each piezoelectric transducer (5) gathers; I represents piezoelectric transducer (5) serial number from inside to outside, and i is the natural number of 1 ~ 8; N represents timing point sum, and N is 20000 ~ 50000;
The main flow of described explosion wave pressure test software is:
S1, initialization, arrange timing point sum N, timing point n=0,
S2, timing point add up n=n+1;
S3, respectively scan A/D1 ~ A/D8, record the blast impulse wave pressure that each piezoelectric transducer (5) gathers
S4, judgement
whether be greater than
if be greater than
then perform S5, otherwise perform S6;
S5、
S6, judge whether n is greater than N, if be greater than N, perform S7, otherwise return S2;
S7, the data that each piezoelectric transducer (5) is gathered, respectively with timing point n for horizontal ordinate, the blast impulse wave pressure gathered with piezoelectric transducer (5)
for ordinate, draw underwater blast wave pressure curve, export
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105571885B (en) * | 2015-12-22 | 2017-11-10 | 中国船舶重工集团公司第七○二研究所 | Simulate deepwater environment explosion testing device |
| CN105606267B (en) * | 2015-12-31 | 2018-06-12 | 中国船舶重工集团公司第七○二研究所 | The measuring device and method of explosive underwater explosion power |
| CN105486452B (en) * | 2015-12-31 | 2018-11-13 | 张宇峰 | Shock wave tests comparison-type scaling method |
| CN108061789A (en) * | 2017-11-27 | 2018-05-22 | 北京理工大学 | A kind of simulation Underwater Explosion test explosive strength test device |
| CN108593520A (en) * | 2018-05-07 | 2018-09-28 | 河南工程学院 | Electric pulse coal petrography fracturing anatonosis experimental system and experimental method under a kind of air environment |
| CN109974915B (en) * | 2019-04-11 | 2023-11-17 | 中国矿业大学(北京) | System and method for testing explosion pressure in water |
| CN110440980A (en) * | 2019-09-03 | 2019-11-12 | 重庆交通大学 | A kind of supercritical CO2Phase conversion pulse is lauched biological effect test macro and method |
| CN114814155A (en) * | 2022-05-07 | 2022-07-29 | 安徽理工大学 | Test device for simulating explosion shock wave pressure in deep water free field environment |
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Application publication date: 20140528 Assignee: Hubei Haosheng Explosives engineering Co.,Ltd. Assignor: WUHAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2023980036415 Denomination of invention: A Pressure Testing Device for Explosion Shock Wave in Containers for Simulating Deepwater Environment Explosion Testing Granted publication date: 20151118 License type: Common License Record date: 20230609 |
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