CN114018098A - Method for increasing underwater shooting range of bullet - Google Patents
Method for increasing underwater shooting range of bullet Download PDFInfo
- Publication number
- CN114018098A CN114018098A CN202111330929.7A CN202111330929A CN114018098A CN 114018098 A CN114018098 A CN 114018098A CN 202111330929 A CN202111330929 A CN 202111330929A CN 114018098 A CN114018098 A CN 114018098A
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- Prior art keywords
- bullet
- cavity
- sealing sheet
- warhead
- pressure
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003721 gunpowder Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 210000003934 vacuole Anatomy 0.000 description 2
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
- F42B10/38—Range-increasing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Toys (AREA)
Abstract
The invention relates to a method for increasing the underwater range of a bullet, which comprises a bullet (1). The bullet (2) of the bullet (1) consists of a bullet body (3), a sealing sheet (6) and a bullet cavity (7), and compressed air is stored in the bullet cavity (7). The movement of the warhead (2) in water adopts a supercavity technology, and the range is obviously increased; the arrangement of compressed air solves the problem of air source of artificial cavitation bubbles; the sealing sheet (6) is arranged, so that the technical problem that the supercavitation effect is generated timely in no time; the quality of the bullet cavity (7) and the compressed air is very small, the negative influence on the movement of the bullet (2) is negligible, and a condition is created for adopting a supercavitation technology; the arrangement of the middle air passage (4) and the plurality of side air passages (5) on the bullet body (3) enables the ejected compressed air to smoothly form supercavity; the power of the warhead (2) for shooting the gun into water is obviously increased by implementing the invention.
Description
Technical Field
The invention relates to a method for increasing the underwater range of a bullet, in particular to a method for increasing the underwater range of the bullet by increasing the underwater range and power of the bullet.
Background
The bullet head of the bullet is 800 times of resistance force in the air when moving in water, so that the bullet head of the bullet launched by the gun in the water has small range and power.
Since the super-cavity technology developed by the Soviet Union and firstly applied to the torpedo with the snow storm, people think that the bullet warhead moving in water also adopts the super-cavity technology after the effect of high-speed movement of the torpedo is obtained. However, the bullet has a small volume, so that the problem of air supply is difficult to solve, and the current progress is not large.
Disclosure of Invention
The invention aims to provide a method for increasing the underwater range of a warhead, which increases the underwater range of the warhead and power.
In order to solve the technical problem, the technical scheme of the invention is as follows:
a method for increasing the underwater range of bullet is disclosed.
The bullet consists of a bullet head and a bullet shell.
The shell cavity of the shell is filled with gunpowder.
The warhead comprises a warhead body, a sealing sheet and a warhead cavity.
The bullet body is positioned at the front part of the bullet and internally provided with a middle air passage and a side air passage.
The middle gas channel is positioned on the axis of the bullet body, the front end of the middle gas channel is close to the top point of the bullet body, and the middle gas channel opening at the rear end of the middle gas channel is positioned on the rear end face of the bullet body.
The side air passages are uniformly distributed around the axis of the bullet body, the inner ends of the side air passages are respectively in circular and sliding communication with the front end of the middle air passage, the side air passage openings at the outer ends of the side air passages are respectively positioned on the outer surface, close to the top point, of the bullet body at corresponding positions, and the middle parts of the side air passages are respectively bent forwards.
The sealing sheet is a circular sheet, the outer diameter of the sealing sheet is smaller than the outer diameter of the upper rear end face of the bullet body, the front circular face of the sealing sheet is coaxially and fixedly connected to the rear end face, and the sealing sheet seals the middle gas channel opening of the middle gas channel.
When the pressure acting on the back round surface of the sealing sheet is more than P0When the sealing sheet is broken at the middle gas passage opening, the pressure intensity of the sealing sheet on the back round surface is less than P0When the sealing sheet is in use, the sealing sheet is not broken at the position of the middle gas passage opening, and P is0The critical pressure for breaking the sealing sheet at the middle gas orifice.
The bullet cavity is positioned at the rear part of the bullet and stores compressed air in the cavity, and the pressure of the compressed air is less than the critical pressure P0But close to said critical pressure P0。
The working principle of the method for increasing the underwater range of the warhead is as follows:
when the bullet is shot by gun in water, the gunpowder in the shell cavity of the shell is detonated to produce high-temperature high-pressure gas, so that the bullet is separated from the shell, and at the same time, the compressed air in the bullet cavity on the bullet is heated by the high-temperature gas to be warmThe degree is increased, and the pressure is increased according to the Charles' law; then, the bullet rubs with the gun barrel, the friction generates heat, the temperature of the compressed air is further increased, and the pressure is further increased; the pressure of the compressed air is greater than said critical pressure P when the bullet is about to leave the barrel0The sealing piece is broken through at the middle air passage opening, compressed air in the bullet cavity is respectively sprayed out from the side air passage openings of the plurality of side air passages through the middle air passage and the plurality of side air passages, supercavitation is formed around the bullet, the bullet is in water but almost has no difference with the air, the resistance is greatly reduced, and therefore, the supercavitation technology is adopted, and the firing range is greatly increased.
The volume of the warhead cavity must satisfy: the warhead moves in the designed range in the whole course and always moves in a supercavity state.
After the structure is adopted, the movement of the bullet in water adopts the supercavity technology, so that the resistance borne by the bullet is reduced to 1/800, and the shooting range of the bullet is obviously increased. The application of the supercavity technology solves the technical problem that the shooting range of the warhead in water is very small, and the application is one of the great creations of the invention.
After the structure is adopted, the compressed air is stored in the bullet cavity, so that the problem of air source of artificial vacuole is solved, and the invention is the second important creation.
By adopting the structure, the sealing piece is arranged, so that the technical problem that the compressed air breaks the sealing piece sooner or later and generates a supercavitation effect in time is solved, and the sealing piece is a third important creation of the invention.
After adopting such structure, utilize high temperature gas and frictional heating ingeniously, according to Charles' law, compressed air leads to pressure increase because of the temperature risees, makes it punctually break the gasket and produces super vacuole. This is the fourth major creation of the present invention.
After the structure is adopted, as the quality of the bullet cavity and the compressed air which are additionally arranged on the bullet is very small, the negative influence on the movement of the bullet can be slightly ignored, and the condition that the bullet is in a supercavity state in water is created, which is the fifth important creation of the invention.
After the structure is adopted, because the middle air passage and the plurality of side air passages are arranged on the bullet body, because the side air passages at the outer ends of the plurality of side air passages are respectively positioned on the outer surface of the bullet body at the corresponding positions, which is close to the top point, and because the middle parts of the plurality of side air passages are respectively bent forwards, the compressed air sprayed out from the side air passages of the plurality of side air passages can smoothly form supercavity, which is the six important creations of the invention.
With this structure, the power of the bullet shooting the gun into the water is remarkably increased.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Figure 1 is an enlarged schematic view of a section of a bullet along an axis.
Detailed Description
As shown in fig. 1, a method for increasing the water range of a bullet comprises a bullet 1.
The bullet 1 consists of a bullet head 2 and a cartridge case 8.
The case chamber 8a of the case 8 is filled with gunpowder 9.
The bullet 2 comprises a bullet body 3, a sealing piece 6 and a bullet cavity 7.
The bullet body 3 is positioned at the front part of the bullet 2, and a middle air passage 4 and a side air passage 5 are formed inside the bullet body.
The middle gas channel 4 is located on the axis of the bullet body 3, the front end of the middle gas channel is close to the top point of the bullet body 3, and the middle gas channel opening 4a at the rear end of the middle gas channel is located on the rear end surface 3a of the bullet body 3.
A plurality of side air channels 5 which are evenly distributed around the axis of the bullet body 3, the inner ends of the side air channels are respectively communicated with the front end of the middle air channel 4 in a circular and sliding way, the side air channel openings 5a at the outer ends of the side air channels are respectively positioned on the outer surface of the bullet body 3 close to the top point at the corresponding positions, and the middle parts of the side air channels are respectively bent forwards.
The sealing sheet 6 is a circular sheet, the outer diameter of which is smaller than the outer diameter of the upper rear end face 3a of the bullet body 3, the front circular face of which is coaxially and fixedly connected to the rear end face 3a, and the sealing sheet seals the middle gas passage opening 4a of the middle gas passage 4.
As acting on the secretThe pressure intensity of the back round surface of the sealing sheet 6 is more than P0When the pressure of the sealing sheet 6 on the back round surface is less than P, the sealing sheet 6 is broken at the middle gas opening 4a0When the sealing sheet 6 is not broken at the middle gas opening 4a, the P is0The critical pressure for breaking the sealing sheet 6 at the middle gas opening 4 a.
The bullet chamber 7, which is located at the rear of the bullet 2, stores compressed air therein, the pressure of which is less than the critical pressure P0But close to said critical pressure P0。
The working principle of the method for increasing the underwater range of the warhead is as follows:
when the bullet 1 is shot by a gun in water, gunpowder 9 in a shell cavity 8a of the shell 8 deflagrates to generate high-temperature and high-pressure gas, so that the bullet 2 is separated from the shell 8, meanwhile, compressed air in a bullet cavity 7 on the bullet 2 is heated by the high-temperature gas, the temperature is increased, and the pressure is increased according to Charles' law; then, the bullet 2 rubs with the gun barrel, the friction generates heat, the temperature of the compressed air is further increased, and the pressure is further increased; the pressure of the compressed air is greater than said critical pressure P when the bullet 2 is about to leave the barrel0The sealing piece 6 is broken at the middle air duct opening 4a, the compressed air in the warhead cavity 7 is respectively sprayed out from the side air duct openings 5a of the plurality of side air ducts 5 through the middle air duct 4 and the plurality of side air ducts 5, supercavitation is formed around the warhead 2, the warhead 2 is in water, but almost has no difference with the air, the resistance is greatly reduced, and therefore the supercavitation technology is adopted, and the range is greatly increased.
The volume of the warhead chamber 7 must satisfy: the warhead 2 moves in the designed range in the whole course and always moves in a supercavity state.
The embodiments of the present invention are described in detail above with reference to the accompanying drawings. The present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Variations that do not depart from the gist of the invention are intended to be within the scope of the invention.
Claims (3)
1. A method for increasing the underwater range of a bullet, which comprises a bullet (1);
the bullet (1) consists of a bullet head (2) and a bullet shell (8);
gunpowder (9) is filled in a shell cavity (8a) of the shell (8);
the method is characterized in that:
the warhead (2) comprises a warhead body (3), a sealing sheet (6) and a warhead cavity (7);
the bullet body (3) is positioned at the front part of the bullet (2), and a middle air passage (4) and a side air passage (5) are formed in the bullet body;
the middle air channel (4) is positioned on the axis of the bullet body (3), the front end of the middle air channel is close to the top point of the bullet body (3), and the middle air channel opening (4a) at the rear end of the middle air channel is positioned on the rear end surface (3a) of the bullet body (3);
the side air passages (5) are uniformly distributed around the axis of the bullet body (3), the inner ends of the side air passages are respectively in circular and smooth communication with the front end of the middle air passage (4), the side air passage openings (5a) at the outer ends of the side air passages are respectively positioned on the outer surface, close to the vertex, of the bullet body (3) at corresponding positions, and the middle parts of the side air passages are respectively bent forwards;
the sealing sheet (6) is a round sheet, the outer diameter of the sealing sheet is smaller than that of the upper rear end face (3a) of the bullet body (3), the front round face of the sealing sheet is coaxially and fixedly connected to the rear end face (3a), and the sealing sheet seals the middle gas passage opening (4a) of the middle gas passage (4);
when the pressure acting on the rear circular surface of the sealing sheet (6) is greater than P0When the sealing piece (6) is broken at the middle gas opening (4a), the pressure acting on the back round surface of the sealing piece (6) is less than P0When the sealing sheet (6) is not broken at the middle gas opening (4a), the P is0Is the critical pressure for breaking the sealing sheet (6) at the middle gas opening (4 a);
the bullet cavity (7) is positioned at the rear part of the bullet (2), and the cavity of the bullet cavity stores compressed air, and the pressure of the compressed air is less than the critical pressure P0But close to said critical pressure P0。
2. The method of increasing the underwater range of a warhead of claim 1, wherein:
the working principle of the method for increasing the underwater range of the warhead is as follows:
when the bullet (1) is shot by a gun in water, gunpowder (9) in a bullet shell cavity (8a) of the bullet shell (8) detonates to generate high-temperature and high-pressure gas, so that the bullet head (2) is separated from the bullet shell (8), meanwhile, compressed air in a bullet head cavity (7) on the bullet head (2) is heated by the high-temperature gas, the temperature is increased, and the pressure is increased according to a charles law; then, the bullet (2) rubs with a gun barrel, the friction generates heat, the temperature of the compressed air is further increased, and the pressure is further increased; the pressure of the compressed air is greater than the critical pressure P when the bullet (2) is about to leave the barrel0The sealing sheet (6) is in well gas duct mouth (4a) department is broken through, compressed air in bullet chamber (7) through well gas duct (4) and these a plurality of side gas ducts (5), respectively from side gas duct mouth (5a) blowout of these a plurality of side gas ducts (5) form the supercavity around bullet (2), bullet (2) although in aqueous, but with almost as no difference in the air, the resistance reduces greatly, therefore, adopt supercavity technique not adopting supercavity technique, its range greatly increases.
3. The method of increasing the underwater range of a warhead of claim 1, wherein:
the volume of the bullet cavity (7) must satisfy: the warhead (2) moves in the whole range of the designed range and always moves in a supercavitation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330929.7A CN114018098A (en) | 2021-10-31 | 2021-10-31 | Method for increasing underwater shooting range of bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330929.7A CN114018098A (en) | 2021-10-31 | 2021-10-31 | Method for increasing underwater shooting range of bullet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114018098A true CN114018098A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111330929.7A Pending CN114018098A (en) | 2021-10-31 | 2021-10-31 | Method for increasing underwater shooting range of bullet |
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| Country | Link |
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| CN (1) | CN114018098A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111972A (en) * | 2022-08-30 | 2022-09-27 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Self-service air film damping device for high-speed underwater projectile body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444165A (en) * | 2019-09-04 | 2021-03-05 | 南京理工大学 | Underwater supercavitation navigation body with hollow appearance characteristics |
-
2021
- 2021-10-31 CN CN202111330929.7A patent/CN114018098A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444165A (en) * | 2019-09-04 | 2021-03-05 | 南京理工大学 | Underwater supercavitation navigation body with hollow appearance characteristics |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111972A (en) * | 2022-08-30 | 2022-09-27 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Self-service air film damping device for high-speed underwater projectile body |
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