CN115235677A - Diaphragm, forming device, shock wave strength tester and testing method - Google Patents
Diaphragm, forming device, shock wave strength tester and testing method Download PDFInfo
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- CN115235677A CN115235677A CN202210804499.6A CN202210804499A CN115235677A CN 115235677 A CN115235677 A CN 115235677A CN 202210804499 A CN202210804499 A CN 202210804499A CN 115235677 A CN115235677 A CN 115235677A
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- diaphragm
- shock wave
- wave strength
- fastener
- tester
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/14—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force of explosions; for measuring the energy of projectiles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
The invention discloses a diaphragm, a forming device, a shock wave strength tester and a testing method, which belong to the technical field of shock wave detection, wherein the diaphragm is used for testing the shock wave strength and structurally comprises a top part, a skirt edge and a side part; the top part is a circular plane, and can be subjected to extension deformation when being impacted by shock waves; the skirt edge is annular and is parallel to the top; the top and the skirt are connected by the side part, and the joint of the side part and the skirt is a curved surface. The whole diaphragm is in a convex structure, and particularly the diaphragm is provided with a skirt edge, so that the thickness of the outer edge of the diaphragm is increased, the diaphragm can be well fixed in related devices, and the diaphragm has excellent fixing performance.
Description
Technical Field
The invention relates to the technical field of shock wave detection, in particular to a diaphragm for testing shock wave strength, a forming device thereof, a shock wave strength tester and a method for testing shock wave strength by using the diaphragm.
Background
The destructive effect of the explosive on the surroundings after explosion is mainly reflected in the damage of the blast wave generated by explosion to the target object besides the damage of the shrapnel. In order to evaluate the damage effect of explosive explosion on a target, one method is to research the law of the intensity of shock waves during explosive explosion, namely to evaluate the explosion intensity according to the attenuation of the overpressure peak value of the shock waves along with the distance and the law of the overpressure of the shock waves at a certain point along with the attenuation of time; another method is to directly study the dynamic response and the damage degree of the action target under the impact load, namely to evaluate the explosion strength by simulating the damage degree of the target.
The first method generally uses an electrical measurement system to monitor the shock wave intensity, but the electrical measurement system is complex, and damage to the electrical measurement system may be caused by the damage of the shock wave, and the subassembly in the electrical measurement system, such as a pressure sensor, is expensive, and when there are more measurement points, the cost of the shock detection work is further increased; the second method, namely the test of the simulation target, is divided into two types: the biological evaluation method has high cost, individual physique difference of organisms is large, pathological analysis is needed to the organisms to obtain the damage effect, and in the structural damage evaluation method, a simulation target is deformed or damaged under the action of explosion, so that the simulation target cannot be reused and great waste is caused. Therefore, it is necessary to select a material and structure that is reasonably cost effective to evaluate the explosive strength and the destructive effect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the diaphragm for testing the intensity of the shock wave, and the distribution rule of the intensity of the ground explosion shock wave can be simply and conveniently researched through the deformation of the diaphragm.
The diaphragm specifically adopts the following technical scheme:
a diaphragm for use in a shock wave strength test, the diaphragm comprising a top portion, a skirt, and side portions;
the top is a circular plane and can be subjected to extension deformation when being impacted by shock waves;
the skirt edge is annular and is parallel to the top;
the side part is connected with the top part and the skirt edge, and the joint of the side part and the skirt edge is a curved surface.
Further, the connecting part of the side part and the skirt edge is an S-shaped curved surface.
Furthermore, the diaphragm is made of aluminum.
Meanwhile, the invention provides a forming device of the diaphragm, which specifically adopts the following technical scheme:
a membrane forming apparatus for preparing any one of the above membranes;
the forming device comprises a punch, a die sleeve and a base;
the punch comprises a circular ring bottom surface and a first cylinder positioned in the middle of the circular ring bottom surface; the bottom surface of the circular ring is connected with the first cylinder through a curved surface;
the die sleeve is provided with a concave cavity matched with the circular bottom surface of the punch and the first cylinder in shape, and the middle of the concave cavity is provided with a through hole;
the base is provided with a supporting surface for supporting the die sleeve and a second cylinder arranged in the middle of the supporting surface and matched with the through hole in shape, and the compression deformation of the membrane raw material is limited in the concave cavity.
Moreover, the invention also provides a shock wave intensity tester assembled with any one of the diaphragms, which adopts the following technical scheme:
a shock wave strength tester comprising: the diaphragm, the base and the fastener;
the membrane is any one of the membranes;
the base is provided with an inner cavity, and the periphery of the top of the inner cavity is provided with a first extrusion surface matched with the skirt edge and the side part of the diaphragm in shape;
the fastener is provided with a through hole, and the inner wall of the fastener is provided with a second extrusion surface matched with the first extrusion surface in shape;
when the skirt edge and the side portion of the diaphragm are clamped between the first extrusion surface and the second extrusion surface, the top of the diaphragm covers the opening of the inner cavity and is communicated with the outside air through the through hole of the fastening piece, and when the top of the diaphragm is impacted by shock waves, the top of the diaphragm can extend and deform towards the inside of the inner cavity.
Further, an external thread is arranged on the outer peripheral side of the inner cavity;
the fastener is provided with an internal thread matched with the external thread in shape;
the base and the fastener are connected through the threads of the external threads and the internal threads to clamp the diaphragm between the first extrusion surface and the second extrusion surface.
Furthermore, the outer side of the bottom of the base and the outer wall of the fastener are provided with two symmetrical planes which are used for being engaged by a wrench when the base is in threaded connection with the fastener.
In addition, the invention also provides a method for testing the intensity of the shock wave by using any one of the shock wave intensity testers, and the method for testing the intensity of the shock wave specifically adopts the following technical scheme:
a method of testing ground shockwave intensity comprising:
laying a plurality of shock wave strength testers on the ground around the explosion point; the shock wave strength tester is any one of the shock wave strength testers;
detonating the detonation source;
measuring the top deformation of a diaphragm in the shock wave strength tester;
and determining the ground shock wave intensity corresponding to the position of the shock wave intensity tester according to the deformation of the top of the diaphragm.
Further, the specific way of laying the shock wave strength tester is as follows:
if the static explosion shock wave ground strength test is carried out, arranging shock wave strength testers on concentric circles with different diameters by taking an explosion point as a center;
if the ground strength test of the dynamic explosion shock wave is carried out, shock wave strength testers are arranged on the periphery of the estimated explosion point in a # -shaped grid mode.
And further calibrating the relation between the deformation of the top of the diaphragm and the shock wave intensity before determining the ground shock wave intensity corresponding to the position of the shock wave intensity tester according to the deformation of the diaphragm.
Has the advantages that:
(1) The diaphragm provided by the invention comprises a top part, a skirt edge and a side part, wherein the top part is a circular plane, the skirt edge is annular and is parallel to the top part, the side part is connected with the top part and the skirt edge, the whole diaphragm is in a convex structure, and particularly the diaphragm is provided with the skirt edge, so that the thickness of the outer edge of the diaphragm is increased, and the diaphragm can be well fixed in related devices, namely has excellent fixing performance.
(2) The connecting part of the side part and the skirt edge of the diaphragm provided by the invention is an S-shaped curved surface, so that the stress direction of the edge of the top part of the diaphragm when the top part of the diaphragm is impacted can be changed, and meanwhile, the contact area of the diaphragm and the fixing device can be increased.
(3) The diaphragm provided by the invention can be formed by quickly extruding aluminum materials with good ductility, is low in manufacturing cost and can be largely used in a shock wave strength test.
(4) The diaphragm forming device provided by the invention basically comprises the punch, the die sleeve and the base, the structure is simple and compact, the die sleeve is placed on the base when the diaphragm is manufactured, then the raw material of the diaphragm is placed in the concave cavity of the die sleeve, the punch is placed on the die sleeve, the punch is taken down after being pressurized in place by using a pressurizing device, the die sleeve is taken down, and the manufactured testing diaphragm is pushed out from the lower surface of the die sleeve, so that the operation is simple and efficient.
(5) The invention provides a shock wave strength tester which basically comprises a base, a fastening piece and a diaphragm, wherein the skirt edge of the diaphragm is equivalent to the increase of the thickness of the outer edge of the diaphragm, so that the skirt edge and the side part of the diaphragm can be stably and fixedly clamped between the base and the fastening piece, and the joint of the side part and the skirt edge of the diaphragm is an S-shaped curved surface, so that the stress direction of the edge of the diaphragm when the top of the diaphragm is impacted can be changed, and the problem that the outer edge of the traditional circular diaphragm is easy to slip or partially slip after the diaphragm is impacted greatly when the outer edge of the traditional circular diaphragm is simply extruded and fixed or fixed by adopting a bolt flange plate, so that the accuracy of a test result is greatly influenced is solved;
the inner cavity arranged on the base enables the top of the diaphragm to be expanded and deformed towards the inner cavity when being impacted by shock waves, and the skirt edge of the diaphragm is firmly fixed with the side plate, so that the structure of the rest parts of the diaphragm is firmly fixed except the top of the diaphragm which needs to be expanded and deformed is not restrained; moreover, when the shock wave strength tester is applied to shock wave strength testing, after the diaphragm is impacted by shock waves, the base and the fastening piece can be repeatedly used, and the diaphragm can be quickly replaced.
(6) The ground shock wave strength testing method provided by the invention only needs to arrange a large number of shock wave strength testers consisting of the base, the fastening pieces and the diaphragms on the periphery of the explosion point, and obtains the distribution condition of the ground shock wave strength according to the deformation of each diaphragm, wherein the subsequent test only needs to replace the diaphragms in each shock wave strength tester, thereby solving the problems that the traditional electrical testing system has a complex structure and high price, and a biological evaluation method and a structural damage evaluation method cannot be repeatedly used.
Drawings
FIG. 1 is a front view of a diaphragm according to one embodiment of the present invention;
FIG. 2 is a top view of a diaphragm according to one embodiment of the present invention;
fig. 3 is a schematic structural view of a film forming apparatus provided in a second embodiment of the present invention, (a) a front view, and (b) a sectional view;
FIG. 4 is a view of the die case of FIG. 3, (a) a front view, (b) a top view, and (c) a cross-sectional view;
FIG. 5 is a view of the base of FIG. 3, (a) a front view, (b) a top view, and (c) a cross-sectional view;
FIG. 6 is a front view of a shock wave tester provided in accordance with a third embodiment of the present invention;
FIG. 7 is a cross-sectional view of FIG. 6;
FIG. 8 is a schematic structural view of the fastener of FIG. 6, (a) in front elevation, (b) in plan, (c) in side elevation, (d) in cross-sectional view;
FIG. 9 is a schematic diagram illustrating a method for testing the intensity of static shock waves according to a fourth embodiment of the present invention;
FIG. 10 is a schematic diagram of a dynamic shock wave strength testing method according to a fourth embodiment of the present invention;
wherein, 1-a membrane; 101-top; 102-a skirt; 103-side part; 2-a film forming device; 201-a punch; 202-a die sleeve; 203-a base; 204-circular ring bottom surface; 205-a first cylinder; 206-a via; 207-support surface; 208-a second cylinder; 301-a base; 302-a fastener; 303-lumen; 304-a first pressing surface; 305-a second pressing surface; 306-external threads; 307-internal threads; 308-kidney shaped pits.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
the first embodiment is as follows:
this embodiment provides a diaphragm that can be used to test the strength of a shock wave.
As shown in fig. 1 and 2, the diaphragm 1 includes a top portion 101, a skirt 102, and a side portion 103, wherein: the top portion 101 is a circular plane and can be expanded and deformed when being impacted by shock waves, the skirt 102 is annular and parallel to the top portion 101, the side portion 103 is connected with the top portion 101 and the skirt 102, and the joint of the side portion 103 and the skirt 102 is a curved surface.
The membrane 1 is of a convex structure overall, and particularly the membrane 1 is provided with the skirt edge 102, so that the thickness of the outer edge of the membrane 1 is increased, and the membrane 1 can be well fixed in related devices, namely, the membrane has excellent fixing performance.
Furthermore, the connecting part of the skirt 102 and the side part 103 is an S-shaped curved surface, so that when the skirt 102 and the side part 103 of the membrane 1 are fixed, the force bearing direction of the edge of the top part 101 of the membrane 1 when being impacted can be changed, and meanwhile, the contact area of the membrane 1 and the fixing device can be increased. In this embodiment, the diaphragm 1 is made of an aluminum material with good ductility, is low in manufacturing cost, and can be used in a large amount in a shock wave strength test. More specifically, in the present embodiment, the membrane 1 made of aluminum has a thickness of 0.2 to 0.5mm.
Example two:
on the basis of the first embodiment, the present embodiment provides a film forming apparatus.
As shown in fig. 3 to 5, the film forming apparatus 2 includes a punch 201, a die sleeve 202 and a base 203, all of which are made of steel, wherein the punch 201 includes a circular bottom surface 204 and a first cylinder 205 located in the middle of the circular bottom surface 204, and the circular bottom surface 204 is connected to the first cylinder 205 through a curved surface; the die sleeve 202 is provided with a concave cavity matched with the circular bottom surface 204 of the punch 201 and the first cylinder 205 in shape, and the middle of the concave cavity is provided with a through hole 206; the base 203 is provided with a supporting surface 207 for supporting the die case 202 and a second cylinder 208 disposed in the middle of the supporting surface 207 and having a shape fitting with the through hole 206, so that the raw film material can be confined in the cavity by deformation under pressure.
When the diaphragm forming device is used, the die sleeve 202 is firstly placed on the base 203, then the diaphragm raw material with good ductility is placed in the cavity, finally the punch 201 is pressed in place through the pressing device, the die sleeve 202 is taken down after the required diaphragm 1 is formed through punching, and the manufactured diaphragm 1 is pushed out from the lower surface of the die sleeve 202, so that the operation is simple and efficient.
Example three:
on the basis of the second embodiment, the present embodiment provides a shock wave strength tester made of a metal material entirely.
As shown in fig. 6 to 8, the shock wave strength tester includes a diaphragm 1, a base 301, and a fastener 302; the base 301 is provided with an inner cavity 303 with the diameter approximately equal to that of the top 101 of the diaphragm 1, and the periphery of the top of the inner cavity 303 is provided with a first pressing surface 304 matched with the skirt 102 and the side part 103 of the diaphragm 1 in shape; the fastener 302 is provided with a through hole having a diameter substantially equal to the diameter of the top 101 of the diaphragm 1; and a second pressing surface 305 matched with the first pressing surface 304 in shape is arranged on the inner wall of the fastener 302; when the skirt edge 102 and the side part 103 of the diaphragm 1 are clamped between the first extrusion surface 304 and the second extrusion surface 305, the top part 101 of the diaphragm 1 covers the opening of the inner cavity 303 and is communicated with the outside air through the through hole of the fastener 302; when the top 101 of the diaphragm 1 is impacted by the shock wave, the top 101 of the diaphragm 1 can be deformed to extend into the inner cavity 303.
In the shock wave strength tester, the S-shaped curved surface of the diaphragm 1 can change the force direction of the edge of the top part 101 of the diaphragm 1 when the top part 101 is impacted, and simultaneously, the pressing areas of the first pressing surface 304 and the second pressing surface 305 on the skirt edge 102 and the side part 103 of the diaphragm 1 are increased, so that the skirt edge 102 and the side part 103 of the diaphragm 1 can be stably and fixedly clamped between the base 301 and the fastener 302; in addition, skirt 102 of membrane 1 is equivalent to increase the thickness of outer edge of membrane 1, thereby further enhancing its stability when fixedly mounted between base 301 and fastener 302.
This shock wave intensity tester has solved traditional circular diaphragm and has followed simple extrusion fixed or adopt the bolt ring flange fixed time outward, receives great impact back at circular diaphragm, and it is fixed along easy slippage or local slippage outward to greatly influence the problem of shock wave test result accuracy. In addition, the diaphragm 1 is fixedly connected in the shock wave strength tester through threads, and the base 301 is provided with the inner cavity 303 corresponding to the top 101 of the diaphragm 1, so that the structure of the rest parts of the diaphragm 1 is firmly extruded and fixed except the top needing to be stretched and deformed is not restrained; moreover, when the shock wave strength tester is applied to a shock wave strength test, after the diaphragm 1 is impacted by the shock wave, the base 301 and the fastener 302 can be reused, and the diaphragm 1 can be quickly replaced.
Furthermore, the outer periphery of the inner cavity 303 is also provided with an external thread 306; the fastener 302 is provided with an internal thread 307 which is form-fit with the external thread 306; the base 301 and the fastener 302 are connected by the external thread 306 and the internal thread 307 to clamp the skirt 102 and the side 103 of the diaphragm 1 between the first pressing surface 304 and the second pressing surface 305.
As an improvement, the outer side of the bottom of the base 301 and the outer wall of the fastener 302 are both provided with two symmetrical planes for the engagement of a wrench when the base 301 and the fastener 302 are screwed in a threaded connection; further, a kidney-shaped recess 308 is provided in the base 301 at a position substantially close to the lower portion, so that the weight of the base 301 can be reduced and the holding by hand can be facilitated.
Example four:
on the basis of the third embodiment, the present embodiment provides a method for testing the ground shock wave strength.
Referring to fig. 9 and 10, the method includes:
distributing a plurality of shock wave strength testers on the ground around the explosion point;
detonating the detonation source;
measuring the deformation of the top 101 of the diaphragm 1 in the shock wave strength tester;
and determining the ground shock wave intensity corresponding to the position of the shock wave intensity tester according to the deformation of the top part 101 of the membrane 1.
As shown in fig. 9, if the static explosive shock wave ground strength test is performed, the tester is arranged on concentric circles with different diameters at a set test distance interval with the explosion point as the center; as shown in fig. 10, if the dynamic explosive shock wave ground strength test is performed, due to the uncertainty of the explosion source falling point (explosion point), shock wave strength testers are arranged in a # -shaped grid in a large range around the estimated explosion point, that is, the testers are arranged on the nodes of each grid, the distance between each tester and the explosion point is measured again according to the actual explosion point after explosion, so as to obtain an explosive shock wave field, and further evaluate the power and damage effect of the explosive shock wave.
More specifically, since the top 101 of the diaphragm 1 will be deformed by the shock wave generated by explosion after reaching the deployed tester, and the deformation is related to the shock wave intensity, i.e. the height of deformation and the size of the formed volume reflect the shock wave pressure and impulse indexes, in this embodiment, the deformation amount of the top 101 of the diaphragm 1 is the height and the formed volume of the deformation of the top 101 of the diaphragm 1 extending to the inner cavity 303 after the impact.
It should be noted that before determining the ground shockwave intensity corresponding to the location of the shockwave intensity tester from the deformation of the top 101 of the diaphragm 1, the relationship between the deformation of the top 101 of the diaphragm 1 and the shockwave intensity needs to be calibrated. Moreover, in order to make the test result more accurate, when the static or dynamic explosion shock wave ground strength test is performed, the top 101 of the diaphragm 1 should be as flush with the ground as possible.
It can be seen that the ground shock wave strength testing method only needs to arrange a large number of shock wave strength testers consisting of the base 301, the fasteners 302 and the diaphragms 1 on the periphery of the explosion point, and obtains the distribution situation of the ground shock wave strength according to the deformation of the top 101 of each diaphragm 1, wherein the subsequent test only needs to replace the diaphragms 1 in each shock wave strength tester, so that the problems that the traditional electrical testing system is complex in structure and high in price, and a biological evaluation method and a structural damage evaluation method cannot be used repeatedly are solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A diaphragm for use in a shock wave strength test, the diaphragm comprising a top portion, a skirt, and side portions;
the top is a circular plane and can be subjected to extension deformation when being impacted by shock waves;
the skirt edge is annular and is parallel to the top;
the side part is connected with the top part and the skirt edge, and the joint of the side part and the skirt edge is a curved surface.
2. The diaphragm of claim 1 wherein the junction of said side portion and said skirt is an S-shaped curve.
3. A diaphragm according to claim 1 or 2, wherein the material of the diaphragm is aluminium.
4. A film forming apparatus for producing a film according to any one of claims 1 to 3;
the forming device comprises a punch, a die sleeve and a base;
the punch comprises a circular ring bottom surface and a first cylinder positioned in the middle of the circular ring bottom surface; the bottom surface of the circular ring is connected with the first cylinder through a curved surface;
the die sleeve is provided with a concave cavity matched with the circular bottom surface of the punch and the first cylinder in shape, and the middle of the concave cavity is provided with a through hole;
the base is provided with a supporting surface for supporting the die sleeve and a second cylinder arranged in the middle of the supporting surface and matched with the through hole in shape, and the compression deformation of the membrane raw material is limited in the concave cavity.
5. A shock wave strength tester, comprising: a diaphragm, a base and a fastener;
the membrane is the membrane of any one of claims 1-3;
the base is provided with an inner cavity, and the periphery side of the top of the inner cavity is provided with a first extrusion surface matched with the skirt edge and the side part of the diaphragm in shape;
the fastener is provided with a through hole, and the inner wall of the fastener is provided with a second extrusion surface matched with the first extrusion surface in shape;
when the skirt edge and the side portion of the diaphragm are clamped between the first extrusion surface and the second extrusion surface, the top of the diaphragm covers the opening of the inner cavity and is communicated with the outside air through the through hole of the fastener, and when the top of the diaphragm is impacted by shock waves, the top of the diaphragm can extend and deform towards the inside of the inner cavity.
6. The shock wave strength tester of claim 5, wherein the outer peripheral side of the inner cavity is further provided with an external thread;
the fastener is provided with an internal thread matched with the external thread in shape;
the base is connected with the fastener through the external thread and the internal thread in a threaded manner so as to clamp the diaphragm between the first extrusion surface and the second extrusion surface.
7. The shock wave strength tester of claim 5 or 6, wherein the outer side of the base bottom and the outer wall of the fastener are provided with two symmetrical planes for engagement by a wrench when the base is threadedly connected to the fastener.
8. A method for testing the intensity of ground shock waves is characterized in that,
distributing a plurality of shock wave strength testers on the ground around the explosion point; the shock wave intensity tester is the shock wave intensity tester of any one of claims 5-7;
detonating a detonation source;
measuring the top deformation of a diaphragm in a shock wave strength tester;
and determining the ground shock wave intensity corresponding to the position of the shock wave intensity tester according to the deformation of the top of the diaphragm.
9. The method for testing the strength of a ground shockwave as recited in claim 8, wherein the shockwave strength tester is deployed by:
if the static explosion shock wave ground strength test is carried out, arranging shock wave strength testers on concentric circles with different diameters by taking an explosion point as a center;
if the dynamic explosion shock wave ground strength test is carried out, a shock wave strength tester is arranged on the periphery of the estimated explosion point by using the # -shaped grid.
10. The method for testing ground shock wave strength according to claim 8 or 9, wherein the relationship between the deformation of the top of the diaphragm and the shock wave strength is calibrated before determining the ground shock wave strength corresponding to the location of the shock wave strength tester from the deformation of the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210804499.6A CN115235677A (en) | 2022-07-08 | 2022-07-08 | Diaphragm, forming device, shock wave strength tester and testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210804499.6A CN115235677A (en) | 2022-07-08 | 2022-07-08 | Diaphragm, forming device, shock wave strength tester and testing method |
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| CN115235677A true CN115235677A (en) | 2022-10-25 |
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| CN202210804499.6A Pending CN115235677A (en) | 2022-07-08 | 2022-07-08 | Diaphragm, forming device, shock wave strength tester and testing method |
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