CN101975654A - Film-breaking device of electric film-breaking shock tube - Google Patents
Film-breaking device of electric film-breaking shock tube Download PDFInfo
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- CN101975654A CN101975654A CN 201010279910 CN201010279910A CN101975654A CN 101975654 A CN101975654 A CN 101975654A CN 201010279910 CN201010279910 CN 201010279910 CN 201010279910 A CN201010279910 A CN 201010279910A CN 101975654 A CN101975654 A CN 101975654A
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Abstract
The invention relates to a film-breaking device of an electric film-breaking shock tube, which comprises a high-pressure section (1) and a low-pressure section (6) that are connected through a bolt (10), wherein a film-breaking device is arranged between the high-pressure section (1) and the low-pressure section (6). The film-breaking device is characterized by being a circular baffle plate (3), the periphery of which is an annular plate, wherein the center of the circular baffle plate (3) is provided with a center column, ribs are uniformly distributed between the center column and the annular plate, a fan cavity is formed between every two ribs; the annular plate is provided with a power supply binding post (5); a center conducting column (11) is arranged on the center column; a wire fixing post (15) is arranged on the annular plate; a resistor wire (17) is wound between the wire fixing post (15) and the center conducting column (11), each rib forms a bridge frame of the resistor wire (17), the resistor wire (17) is connected through an electric connecting member to form a power supply loop; and an easily-melting film (8) is adhered on the circular baffle plate (3); and the back surface of the easily-melting film (8) is tightly attached to the resistor wire (17) on the bridge frame.
Description
One, technical field
The invention belongs to the fluid mechanics research field, be specifically related to a kind of film breaking unit of electric rupture of membranes formula shock tube.
Two, background technology
Shock tube can produce shock wave, and utilizes the required experiment condition of this supersonic pressure wave simulation, and (as burning, blast and non-permanent wave motion etc.) have a wide range of applications in the fundamental research of a lot of physics and chemistry.
Shock tube rupture of membranes mode mainly contains passive type and active two kinds.The passive type rupture of membranes is to crush diaphragm when the pressure reduction between the high and low pressure section reaches certain value, Rupture of Membrane pressure can be by controls such as diaphragm thickness or groove depths, this mode is mainly used in the bigger situation of high and low pressure section pressure reduction, and advantage is simple in structure, and shortcoming is a stability and controlled relatively poor.
Electricity rupture of membranes mode belongs to active rupture of membranes mode, has reliability height, controlled good advantage, and particularly advantage is more obvious under the less situation of shock tube high and low pressure section pressure reduction.At present, the diaphragm of electric rupture of membranes mode adopts the double-layer polyester diaphragm usually, between the two-layer diaphragm around " ten " font resistance wire, power supply module by the rupture of membranes system sparks, make the resistance wire transient heating, polyester film sheet and resistance wire contact position be by hot melt, thus rupture of membranes and produce shock wave.
Resistance wire in the existing electric rupture of membranes system generally adopts manual mode of twining to be made into to be clipped in the double-layer polyester diaphragm after " ten " font or is attached on the single-layer polyester diaphragm, whenever doing an experiment just needs to twine the resistance wire of " a ten " font, and the workload of the duplication of labour is bigger.In addition, owing to just clamp polyester film sheet simply between high pressure section and low pressure stage, the pressure reduction between high pressure section and the low pressure stage makes diaphragm to the outstanding formation of low pressure stage bulge, causes resistance wire and polyester film sheet loose contact, cause the asymmetric of rupture of membranes, thereby influence generates the quality of shock wave.
Three, summary of the invention
The objective of the invention is to solve the above-mentioned shortcoming of electric rupture of membranes system, a kind of easy for installation, resistance wire can be repeatedly used, the rupture of diaphragm symmetry is good electric film breaking unit is provided.
Basic ideas of the present invention are: increase the dividing plate that a dismountable hard insulation (as teflon) is made between high pressure section and low pressure stage, dividing plate center (the dividing plate internal diameter is more bigger than shock tube internal diameter) integral body processes " ten " font support, is used to support resistance wire and diaphragm.Twine resistance wire for convenience, the needs of turning back according to resistance wire on dividing plate have been arranged the solidus post that several can stretch.Before twining resistance wire all solidus posts are unscrewed, its inner spring can play the solidus capital automatically and spill wire casing.Initiating terminal with resistance wire twines several circles on the solidus screw then, tightens screw and pushes down the end of a thread.Then resistance wire is passed through the solidus post successively according to the coiling order, and resistance wire is embedded in the wire casing, need slightly firmly that resistance wire is stretching substantially in the coiling process.The end of resistance wire twines several circles equally on another solidus screw, tighten screw and push down the end of a thread.At last all solidus posts are tightened, one make resistance wire tighten stretching, be close to " ten " font rack surface; Two guarantee the not outstanding baffle surface of solidus post, in order to avoid influence the sealing between dividing plate and high pressure section and the low pressure stage.
After resistance wire twines and finishes, (suggestion is pasted with a little high vacuum silicone grease) on the dividing plate paved, sticked on to meltable diaphragm (as polyester film sheet), guarantee that polyester film sheet contacts well with resistance wire.
At last dividing plate is installed between high pressure section and the low pressure stage, guarantee electrode and power-line terminal on the dividing plate align be communicated with after, with bolt and tighten.
The concrete technical scheme that the present invention adopts is: a kind of film breaking unit of electric rupture of membranes formula shock tube, comprise high pressure section and low pressure stage, link at high pressure section and low pressure stage is respectively equipped with high pressure section flange and low pressure stage flange, connect by bolt between high pressure section flange and the low pressure stage flange, between high pressure section and low pressure stage, film breaking unit is housed, the high pressure section O-ring seal is housed between film breaking unit and the high pressure section, the low pressure stage O-ring seal is housed between film breaking unit and the low pressure stage, it is characterized in that the formation of film breaking unit is:
A circular dividing plate of making by hard insulation;
The periphery of circular dividing plate is an annular slab, and newel is left at the center of circular dividing plate, is evenly equipped with many roots bar between newel and the annular slab, forms fan-shaped cavity between the adjacent rib;
Annular plate surface is equipped with a pair of power-line terminal to low pressure stage one side;
Newel is equipped with the center conductive post towards high pressure section one side;
Annular plate surface is to high pressure section one side and be positioned at every root bar and radially locate to be equipped with the solidus post;
Be wound with resistance wire between each solidus post and the center conductive post, every root bar constitutes the crane span structure of resistance wire, and resistance wire connects and composes electric power loop by electrical connector and power-line terminal;
Circular separator face is pasted with meltable diaphragm to high pressure section one side, and the resistance wire that is positioned on the crane span structure is close at the meltable diaphragm back side.
In the practice, the non-resistance wire part that is positioned on the crane span structure should be avoided directly contacting with meltable diaphragm as far as possible; The winding method of electric power loop and resistance wire thereof can have multiple specific design mode, but takes which kind of mode all should guarantee the synchronous thermally equivalent of resistance wire on each crane span structure as far as possible, so that resistance wire melts meltable diaphragm everywhere synchronously.
Further scheme is: rib is 4, and this 4 root bar constitutes cross crane span structure.Certainly, rib also can be for more than 3 or 5, but in order both to guarantee not bulge of diaphragm, are convenient to assemble parts such as resistance wire again, are advisable with 4.
Further scheme is:
Have through hole on the annular slab, the solidus post is loaded in the through hole, the solidus cylinder has the ring winding groove to the end periphery of high pressure section one side, the other end termination of solidus post has the internal thread screw, turn is housed in the through hole, from the low pressure stage side direction through hole of through hole screw is housed, screw cooperates with the internal thread screw of solidus post after passing turn;
Have through hole on the newel, the center conductive post is loaded in the through hole, the center conductive cylinder has Wire channel in building to the end of high pressure section one side, the other end termination of center conductive post has the internal thread screw, turn is housed in the through hole, from the low pressure stage side direction through hole of through hole screw is housed, screw cooperates with the internal thread screw of center conductive post after passing turn;
Have the electrical connector hole on the annular slab, electrical connector is loaded in the electrical connector hole, and electrical connector comprises: towards the electrode of high pressure section one side, electrode head has the ring winding groove, the electrode afterbody has the internal thread screw, electrical connector is equipped with turn in the hole, from the low pressure stage side direction electrical connector hole in electrical connector hole screw is housed, and screw cooperates with the internal thread screw of electrode after passing turn.
Can assemble resistance wire so very easily and change meltable diaphragm etc.Certainly, the wire laying mode of solidus post, center conductive post, electrical connector, power-line terminal, electric power loop and resistance wire thereof etc. is not limited to aforesaid way, and a lot of conventional replacements can be arranged.
Advantage of the present invention is: easy for installation, resistance wire can be repeatedly used, the rupture of diaphragm symmetry is good, and crane span structure can prevent the polyester film sheet bulge, guarantees that resistance wire contacts with polyester film sheet well, generates the excellent quality of shock wave.
Four, description of drawings
Fig. 1 is the shock tube system architecture synoptic diagram among the present invention.
Fig. 2 is the partial enlarged drawing of the a-quadrant of Fig. 1.
Fig. 3 is the structural representation of film breaking unit among the present invention.
Fig. 4 is the sectional view of Fig. 3.
Fig. 5 is the partial enlarged drawing in the C zone of Fig. 4.
Fig. 6 is the front elevation of solidus post.
Fig. 7 is the D-D cut-open view among Fig. 6.
Fig. 8 is the E-E cut-open view among Fig. 6.
Fig. 9 is the front elevation of electrode among the present invention.
Figure 10 is the F-F cut-open view among Fig. 9.
Figure 11 is the G-G cut-open view among Fig. 9.
Figure 12 is the front elevation of center conductive post.
Figure 13 is the left view of center conductive post.
Figure 14 is the H-H cut-open view among Figure 12.
Figure 15 is the I-I cut-open view among Figure 13.
1.-10. Figure 16 represents the sequencing of coiling for resistance wire winding synoptic diagram among the present invention, sequence number.
Among the figure: high pressure section 1, high pressure section flange 2, dividing plate 3, low pressure stage flange 4, power-line terminal 5, low pressure stage 6, low pressure stage O-ring seal 7, meltable diaphragm 8, high pressure section O-ring seal 9, bolt 10, center conductive post 11, electrode 12, turn 13, screw 14, solidus post 15, solidus screw 16, resistance wire 17.
Five, embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15 and shown in Figure 16, a kind of film breaking unit of electric rupture of membranes formula shock tube, comprise high pressure section 1 and low pressure stage 6, link at high pressure section 1 and low pressure stage 6 is respectively equipped with high pressure section flange 2 and low pressure stage flange 4, connect by bolt 10 between high pressure section flange 2 and the low pressure stage flange 4, between high pressure section 1 and low pressure stage 6, film breaking unit is housed, between film breaking unit and the high pressure section 1 high pressure section O-ring seal 9 is housed, between film breaking unit and the low pressure stage 6 low pressure stage O-ring seal 7 is housed, it is characterized in that the formation of film breaking unit is:
A circular dividing plate 3 of making by hard insulation;
The periphery of circular dividing plate 3 is an annular slab, and newel is left at the center of circular dividing plate 3, is evenly equipped with 4 root bars between newel and the annular slab and constitutes cross crane span structure, forms fan-shaped cavity between the adjacent rib;
Annular plate surface is equipped with a pair of power-line terminal 5 to low pressure stage 6 one sides;
Newel is equipped with center conductive post 11 towards high pressure section 1 one sides;
Annular plate surface is to high pressure section 1 one sides and be positioned at every root bar and radially locate to be equipped with solidus post 15;
Be wound with resistance wire 17 between each solidus post 15 and the center conductive post 11, every root bar constitutes the crane span structure of resistance wire 17, and resistance wire 17 connects and composes electric power loop by electrical connector and power-line terminal 5;
Circular dividing plate 3 is pasted with meltable diaphragm 8 towards high pressure section 1 one sides, and the resistance wire 17 that is positioned on the crane span structure is close at meltable diaphragm 8 back sides.
Have through hole on the annular slab, solidus post 15 is loaded in the through hole, solidus post 15 has the ring winding groove towards the end periphery of high pressure section 1 one sides, the other end termination of solidus post 15 has the internal thread screw, turn 13 is housed in the through hole, from the low pressure stage 6 side direction through holes of through hole screw 14 is housed, screw 14 passes turn 13 backs and cooperates with the internal thread screw of solidus post 15;
Have through hole on the newel, center conductive post 11 is loaded in the through hole, center conductive post 11 has Wire channel in building towards the end of high pressure section 1 one sides, the other end termination of center conductive post 11 has the internal thread screw, turn 13 is housed in the through hole, from the low pressure stage 6 side direction through holes of through hole screw 14 is housed, screw 14 passes turn 13 backs and cooperates with the internal thread screw of center conductive post 11;
Have the electrical connector hole on the annular slab, electrical connector is loaded in the electrical connector hole, and electrical connector comprises: towards the electrode 12 of high pressure section 1 one sides, electrode 12 heads have the ring winding groove, electrode 12 afterbodys have the internal thread screw, turn 13 is housed in the electrical connector hole, from the low pressure stage 6 side direction electrical connector holes in electrical connector hole screw 14 is housed, screw 14 passes turn 13 backs and cooperates with the internal thread screw of electrode 12.
Among the present invention, dividing plate 3 is main bodys of film breaking unit, and miscellaneous part is installed on the dividing plate 3.
From Fig. 1 as seen, dividing plate 3 is between high pressure section flange 2 and low pressure stage flange 4, and the three fixes by bolt 10, and its median septum 3 can be dismantled; High pressure section 1 is generally stainless steel pipes, its left end sealing is equipped with static pressure table, gas admittance valve and air outlet valve on the pipeline, right-hand member is connected with dividing plate 3 by high pressure section flange 2, and accompany polyester film sheet 8 and high pressure section O-ring seal 9 between the two, thereby high pressure section is realized sealing; Low pressure stage 6 is generally stainless steel pipes, and left end is connected with dividing plate 3 by low pressure stage flange 4, and accompanies low pressure stage O-ring seal 7 between the two, thereby the low pressure stage flange contact facings is realized sealing.
From Fig. 3 as seen, dividing plate 3 centers are " ten " font support, 4 square solidus posts 15 have been arranged at four ends of " ten " font support, solidus post 15 outward flanges are positioned on the extended line of " ten " font carriage center, fixedly outside the screw 14 of solidus post 15 spring 13 is arranged, solidus post 15 end faces are concordant with end face of flange when screw 14 is tightened, and solidus post 15 end faces eject dividing plate 3 end faces automatically and expose wire casing when screw 14 is unscrewed." ten " font carriage center is equipped with 1 center conductive post 11, and its material is that brass and solidus post 15 similar also can be stretched automatically.Arranged square-shaped electrode 12 in adjacent 2 solidus post 15 centre positions, upper and lower respectively has 1 among Fig. 3, and its structure and solidus post 15 are similar.Up the following symmetric arrangement of electrode 12 2 solidus screws 16, the two ends of fixed resistance silk respectively.Solidus post 15 to electrode 12, electrode 12 to being carved with the wide wire casing of about 1mm between the solidus screw 16, the wire casing degree of depth should be consistent apart from the distance of end face with the winding slot on solidus post 15 and the electrode 12.
From Fig. 6, Fig. 7 and Fig. 8 as seen, a circle winding slot is arranged on the solidus post 15, the width of winding slot and the degree of depth should be slightly larger than the external diameter of resistance wire 17.
From Fig. 9, Figure 10 and Figure 11 as seen, the structure of electrode 12 and solidus post 15 are similar, and the sectional dimension of electrode 12 is greater than solidus post 15.
From Figure 12, Figure 13, Figure 14 and Figure 15 as seen, center conductive post 11 has 2 vertical and Wire channel in building by its center, can guarantee on " ten " font support that two sections vertical resistance wires are reliable in the contact of center conductive post 11 places, simultaneously also effective fixed resistance silk 17.
Coiling (resistance wire 17) method is as follows: at first cut the suitable resistance wire of a segment length 17, then the screw 14 on all solidus posts 15, electrode 12 and the center conductive post 11 is unscrewed, its inner spring 13 can be automatically with its jack-up and spill wire casing, unscrew solidus screw 16.Then the initiating terminal with resistance wire 17 twines several circles on solidus screw 16, tightens gib screw 16 and pushes down the end of a thread.Then resistance wire 17 is passed through electrode 12 → solidus post 15 → center conductive post 11 → solidus post 15 → electrode 12 → solidus post 15 → center conductive post 11 → solidus post 15 → electrode 12 → solidus screw 16 successively according to the order of the coiling shown in Figure 16, need slightly firmly that resistance wire 17 is stretching substantially in the coiling process, the end of resistance wire 17 twines several circles equally on another solidus screw 16, tighten solidus screw 16 then and push down the end of a thread.At last the screw 14 of all solidus posts 15, electrode 12 and center conductive post 11 is tightened, make resistance wire 17 tighten stretching, be close to " ten " font rack surface, and not outstanding dividing plate 3 surfaces of the end face of guaranteeing solidus post 15, electrode 12 and center conductive post 11, in order to avoid the influence sealing.
After resistance wire 17 twines and finishes, (suggestion is pasted with a little high vacuum silicone grease) on the dividing plate 3 paved, sticked on to polyester film sheet 8, guarantee that polyester film sheet 8 contacts well with resistance wire 17.
So far, the assembling of film breaking unit has just been finished.Then, film breaking unit is installed between high pressure section flange 2 and the low pressure stage flange 4, guarantee 5 alignment of electrode 12 and power-line terminal after, fix and tighten with bolt 10.
Then high pressure section 1 is inflated, reached setting value, close charging valve until high pressure section 1 pressure.
The power supply module of relief rupture of membranes system sparks, and makes resistance wire 17 transient heatings, and polyester film sheet 8 and resistance wire 17 contact positions are by hot melt, thus polyester film sheet 8 rapid ruptures of membranes and produce shock wave.
Only need change a polyester film sheet 8 and get final product when re-using next time, need not to change resistance wire 17.If after long-term the use, when finding the rupture of membranes poor effect, should change resistance wire 17 separately.
Claims (3)
1. the film breaking unit of an electric rupture of membranes formula shock tube, comprise high pressure section (1) and low pressure stage (6), link at high pressure section (1) and low pressure stage (6) is respectively equipped with high pressure section flange (2) and low pressure stage flange (4), connect by bolt (10) between high pressure section flange (2) and the low pressure stage flange (4), between high pressure section (1) and low pressure stage (6), film breaking unit is housed, high pressure section O-ring seal (9) is housed between film breaking unit and the high pressure section (1), low pressure stage O-ring seal (7) is housed between film breaking unit and the low pressure stage (6), it is characterized in that the formation of film breaking unit is:
A circular dividing plate (3) of making by hard insulation;
The periphery of circular dividing plate (3) is an annular slab, and newel is left at the center of circular dividing plate (3), is evenly equipped with many roots bar between newel and the annular slab, forms fan-shaped cavity between the adjacent rib;
Annular plate surface is equipped with a pair of power-line terminal (5) to low pressure stage (6) one sides;
Newel is equipped with center conductive post (11) towards high pressure section (1) one side;
Annular plate surface is to high pressure section (1) one side and be positioned at every root bar and radially locate to be equipped with solidus post (15);
Be wound with resistance wire (17) between each solidus post (15) and the center conductive post (11), every root bar constitutes the crane span structure of resistance wire (17), and resistance wire (17) connects and composes electric power loop by electrical connector and power-line terminal (5);
Circular dividing plate (3) is pasted with meltable diaphragm (8) towards high pressure section (1) one side, and the resistance wire (17) that is positioned on the crane span structure is close at meltable diaphragm (8) back side.
2. the film breaking unit of electric rupture of membranes formula shock tube according to claim 1 is characterized in that: rib is 4, and this 4 root bar constitutes cross crane span structure.
3. the film breaking unit of electric rupture of membranes formula shock tube according to claim 1 is characterized in that:
Have through hole on the annular slab, solidus post (15) is loaded in the through hole, solidus post (15) has the ring winding groove towards the end periphery of high pressure section (1) one side, the other end termination of solidus post (15) has the internal thread screw, turn (13) is housed in the through hole, from low pressure stage (6) the side direction through hole of through hole screw (14) is housed, screw (14) passes turn (13) back and cooperates with the internal thread screw of solidus post (15);
Have through hole on the newel, center conductive post (11) is loaded in the through hole, center conductive post (11) has Wire channel in building towards the end of high pressure section (1) one side, the other end termination of center conductive post (11) has the internal thread screw, turn (13) is housed in the through hole, from low pressure stage (6) the side direction through hole of through hole screw (14) is housed, screw (14) passes turn (13) back and cooperates with the internal thread screw of center conductive post (11);
Have the electrical connector hole on the annular slab, electrical connector is loaded in the electrical connector hole, and electrical connector comprises: towards the electrode (12) of high pressure section (1) one side, electrode (12) head has the ring winding groove, electrode (12) afterbody has the internal thread screw, turn (13) is housed in the electrical connector hole, from low pressure stage (6) the side direction electrical connector hole in electrical connector hole screw (14) is housed, screw (14) passes turn (13) back and cooperates with the internal thread screw of electrode (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010279910XA CN101975654B (en) | 2010-09-09 | 2010-09-09 | Film-breaking device of electric film-breaking shock tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010279910XA CN101975654B (en) | 2010-09-09 | 2010-09-09 | Film-breaking device of electric film-breaking shock tube |
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| CN101975654A true CN101975654A (en) | 2011-02-16 |
| CN101975654B CN101975654B (en) | 2012-02-01 |
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| CN201010279910XA Expired - Fee Related CN101975654B (en) | 2010-09-09 | 2010-09-09 | Film-breaking device of electric film-breaking shock tube |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105911215A (en) * | 2016-05-24 | 2016-08-31 | 中国人民解放军装备学院 | Pneumatic needle membrane piercing device for rectangular-section shockwave tube |
| CN106644359A (en) * | 2016-12-07 | 2017-05-10 | 中国航天空气动力技术研究院 | Film clamping device for double-film pressure-fixed film breaking and single-film impact film breaking |
| CN106644358A (en) * | 2016-12-05 | 2017-05-10 | 中国航天空气动力技术研究院 | Shock tunnel diaphragm rupture device |
| CN107860511A (en) * | 2017-11-08 | 2018-03-30 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of small Step Pressure generator of shock tube |
| CN108844709A (en) * | 2018-07-02 | 2018-11-20 | 中北大学 | A kind of controllable film breaking unit for the low driving pressure of shock tube |
| CN109975473A (en) * | 2019-03-20 | 2019-07-05 | 浙江大学 | A kind of electronic needle of shock tube that can be used under lower pressure punctures film device |
| CN110307960A (en) * | 2019-07-15 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of shock tube active film breaking unit |
| CN113029495A (en) * | 2021-05-31 | 2021-06-25 | 中国工程物理研究院流体物理研究所 | High Mach shock tube experimental apparatus based on arc discharge driving |
| CN116399540A (en) * | 2023-06-07 | 2023-07-07 | 中国飞机强度研究所 | Device and method for launching air cannon system for aircraft impact dynamics strength test |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105911215A (en) * | 2016-05-24 | 2016-08-31 | 中国人民解放军装备学院 | Pneumatic needle membrane piercing device for rectangular-section shockwave tube |
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| CN107860511B (en) * | 2017-11-08 | 2020-04-24 | 中国航空工业集团公司北京长城计量测试技术研究所 | Shock tube micro step pressure generator |
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| CN108844709B (en) * | 2018-07-02 | 2020-09-29 | 中北大学 | Controllable membrane breaking device for low driving pressure of shock tube |
| CN108844709A (en) * | 2018-07-02 | 2018-11-20 | 中北大学 | A kind of controllable film breaking unit for the low driving pressure of shock tube |
| CN109975473A (en) * | 2019-03-20 | 2019-07-05 | 浙江大学 | A kind of electronic needle of shock tube that can be used under lower pressure punctures film device |
| CN110307960A (en) * | 2019-07-15 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of shock tube active film breaking unit |
| CN110307960B (en) * | 2019-07-15 | 2021-06-22 | 中国航空工业集团公司北京长城计量测试技术研究所 | Active membrane breaking device for shock tube |
| CN113029495A (en) * | 2021-05-31 | 2021-06-25 | 中国工程物理研究院流体物理研究所 | High Mach shock tube experimental apparatus based on arc discharge driving |
| CN113029495B (en) * | 2021-05-31 | 2021-08-03 | 中国工程物理研究院流体物理研究所 | High Mach shock tube experimental apparatus based on arc discharge driving |
| CN116399540A (en) * | 2023-06-07 | 2023-07-07 | 中国飞机强度研究所 | Device and method for launching air cannon system for aircraft impact dynamics strength test |
| CN116399540B (en) * | 2023-06-07 | 2023-08-18 | 中国飞机强度研究所 | Device and method for launching air cannon system for aircraft impact dynamics strength test |
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| CN101975654B (en) | 2012-02-01 |
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