CN110375594A - A kind of supercavity long-tail projectile entering water suitable for low-angle - Google Patents
A kind of supercavity long-tail projectile entering water suitable for low-angle Download PDFInfo
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- CN110375594A CN110375594A CN201910580221.3A CN201910580221A CN110375594A CN 110375594 A CN110375594 A CN 110375594A CN 201910580221 A CN201910580221 A CN 201910580221A CN 110375594 A CN110375594 A CN 110375594A
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- Prior art keywords
- projectile
- supercavity
- bullet
- angle
- low
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Classifications
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- 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
- F42B10/02—Stabilising arrangements
-
- 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
- F42B10/02—Stabilising arrangements
- F42B10/04—Stabilising arrangements using fixed fins
- F42B10/06—Tail fins
-
- 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
- F42B10/42—Streamlined projectiles
- F42B10/46—Streamlined nose cones; Windshields; Radomes
Abstract
The invention discloses a kind of supercavity long-tail projectiles for entering water suitable for low-angle.It can be used for surface ship deck or helicopter transmitting.The projectile is made of the bullet with multiple cavitation devices and the body with reinforcing rib.Vacuole as big as possible can also be formed when speed is smaller by projectile with multistage stepped cylindrical cavitation device, reduced projectile and entered the speed loss after water, increase the range of projectile, can also simultaneously improve the operational configuration that bullet low-angle enters water.Body uses the structure of empennage and reinforcing rib, projectile can be effectively prevent to overturn, and the operational configuration of projectile is allowed more to stablize.
Description
Technical field
The present invention relates to underwater projectile field, specifically a kind of structure optimization Supercavitating Projectile.
Background technique
Since supercavity technology has very good resistance reducing performance, grinding for supercavity technology is all very focused in countries in the world
Hair and application.The research about supercavity technology focuses primarily upon supercavitating torpedo, Supercavitating Projectile etc. at present.
Supercavity package body is formed after Supercavitating Projectile transmitting in water, the surface viscosity resistance on body surface is big at this time
Width reduces, and the speed of projectile can be improved in this way.Therefore Supercavitating Projectile can at a high speed it is stable enter water, enter formed after water it is super empty
Bubble, using supercavity, drag reduction is navigated by water in water, realizes water high speed, long-distance navigation, effectively destruction submarine target.
For Supercavitating Projectile as a kind of new weapon, it is primarily used to anti-torpedo and anti-torpedo combat system.It is usually
There are two types of the mode of operation, a kind of under-water body being mounted in anti-torpedo sail body, in surface ship or submarine, using underwater
Emission system transmitting, enemy's torpedo is intercepted by intensive radiation pattern.Another kind is mounted in the artillery system of helicopter, with
High speed enters the kinetic energy strike submarine target of water.Second of application mode most typically, most successful is exactly U.S. northrop lattice Shandong
The airborne thunder system of quickly going out that Men company develops, abbreviation RAMICS.The system is mounted on helicopter, emits a kind of special tail
The wing stablizes supercavity armor-piercing bullet, and Phenomena As A Pellet Entering Water forms supercavity, destroys target submarine mine using kinetic energy.
For Supercavitating Projectile weapon as a kind of new concept weapon, it is slow to make up traditional backhand thunder means reaction speed, makees
War low efficiency, the deficiency of safety difference, to improve naval to the cleaning ability and efficiency of submarine mine.Since Supercavitating Projectile is installed
On helicopter, and Controlled Mine Countermeasures quick-reaction capability can be improved in the good mobility of helicopter, so Supercavitating Projectile weapon
Anti-mine fast response time.For anti-mine warfare vessel when shallow water area implements operation to target, submarine is from experiencing submarine mine prestige
It is bigger to coerce risk, and airborne Supercavitating Projectile system is a kind of non-contact operation mode, so its security performance increases greatly
Add.The price of large-scale underwater mine neutralization vehicle is between 100 ~ 6,000,000 dollars, and novel expendable ROV is also required to tens of thousands of dollars,
And the cost of Supercavitating Projectile only needs tens of thousands of RMB, so Supercavitating Projectile has more economic advantages.
Although Supercavitating Projectile has many advantages, but also there are many areas for improvement.Supercavitating Projectile transmitting
Power is provided without propulsion device afterwards, its operational configuration is also controlled without control device, so the realization master of its ballistic performance
If leaning on hydrodynamic performance, and the problem of flow dynamic characteristic most critical is exactly the configuration design of projectile.Configuration design has two
A emphasis needs to consider.First is that rapidity.Supercavitating Projectile itself does not have dynamical system, enter projectile after water to quickly generate it is super
Vacuole and vacuole will wrap up body, so projectile, when with certain initial velocity, its configuration design is particularly significant.Second is that
Stability.In the entire ballistic process of Supercavitating Projectile, it is related to across medium flight.When across medium flight, projectile
The phenomenon that trajectory that immersion angle degree will affect projectile is formed, and can even generate outer drift when immersion angle degree is especially small
Chinese patent 108844418A discloses a kind of fin stabilization high speed Supercavitating Projectile.The invention uses fin stabilization
Mode increases empennage in projectile tail portion, can improve that common trajectory is flexible, the poor disadvantage of linearity.But the invention
The maximum radius of radius ratio cylinder projectile at empennage is obviously big, and to make the fully wrapped around projectile of supercavity, projectile is necessary
There is bigger speed.
Summary of the invention
The purpose of the present invention is to provide a kind of supercavity long-tail projectiles for entering water suitable for low-angle.
The technical solution for realizing the aim of the invention is as follows: a kind of supercavity long-tail projectile entering water suitable for low-angle,
Including bullet, reinforcing rib, empennage and rear portion fixing end；Bullet has stair-stepping multistage cavitation device, and reinforcing rib, empennage are solid
It is scheduled between bullet and rear portion fixing end, while empennage is uniformly around being fixed on reinforcing rib.
The quantity of the bullet cavitation device is 6 to 8, and the radius of cavitation device changes linearly；Front end radius is the smallest
Cavitation device is disk cavitator；The length of every level-one cavitation device is gradually shortened from front to back.
The reinforcing rib, which is located at, plays axis center position.
The length of the reinforcing rib and empennage accounts for the half of projectile length.
The width of the empennage is no more than the maximum radius of bullet.
The quantity of the empennage is six.
Compared with prior art, the present invention its remarkable advantage: (1) present invention has multistage in the shape design of bullet
Stepped cylindrical cavitation device can also reduce projectile when projectile velocity is smaller and enter the speed loss after water, and increase is penetrated
The range of bullet.(2) ladder-like cavitation device bullet of the invention can also improve the operational configuration that bullet low-angle enters water.(3) originally
The body of invention uses the structure of empennage and reinforcing rib, projectile can be effectively prevent to overturn, and makes the operational configuration of projectile more steady
It is fixed.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is overall structure sectional view of the invention.
Fig. 3 is the diagrammatic cross-section of the invention with empennage body part.
Specific embodiment
The present invention is a kind of Supercavitating Projectile of profile optimization design, can be used for surface ship deck or helicopter hair
It penetrates.The projectile reduces speed loss when can navigating by water under water, keeps its navigation more stable in the process, range is farther.Together
When it can also enhance low-angle and enters aqueous, make it more stable when low-angle enters water.
Supercavitating Projectile includes the bullet with multiple cavitation devices, the body with reinforcing rib.
(1) bullet has multistage stepped cylindrical cavitation device, and the quantity of general cavitation device is 6 to 8, cavitation device
Radius change linearly.Radius the smallest cavitation device in front end is disk cavitator.The length of every level-one cavitation device by preceding to
It shortens gradually afterwards.
(2) body accounts for about the half of entire projectile length, is made of cylindrical reinforcing rib and empennage.Reinforcing rib position
In playing axis center position, front and back is fixed.The maximum radius of radius ratio bullet of reinforcing rib is much smaller.
(3) empennage has 6, is fixed on around reinforcing rib to even angle, while its rear end is also fixed.Empennage
Width be no more than the maximum radius of bullet.
Technical solution of the present invention is described further below.
The present invention is a kind of Supercavitating Projectile with optimization structure, it is made of bullet and body.Bullet 1 has
Stair-stepping multistage cylindrical cavitation device, body are made of reinforcing rib 2 and empennage 3, and 4 be that the rear portion of reinforcing rib and empennage is fixed
End.
Projectile is when route speed is bigger in water, and the cavitation device of front end, which can produce one and wrap, entirely to be penetrated
The vacuole of bullet.At this time since the viscous drag of air is smaller than the viscous drag of water, so the resistance that projectile generates in water is just
It can become smaller, kinetic energy rejection reduces, more preferable to the strike effect of target.But when the speed of projectile is lesser, is produced from front end
Raw vacuole is not enough to wrap up entire projectile, and the contact area of water and body is larger, so that the resistance that projectile is subject to is still larger.
The projectile that the present invention designs, because bullet has multistage cavitation device, when the sky that speed is smaller, and front end cavitation device generates
Bubble be when cannot wrap entire body, behind the cavitation devices at different levels that are not wrapped start to generate vacuole, increase as far as possible
The vacuole covering on big body surface, reduces the contact area of body and water, so that projectile reduces the loss of speed, increase is penetrated
Journey.
If projectile has the pointed bullet of hemispherical bullet or sharp shape, when they are when low-angle enters water, water
Resistance can be formed in bullet, this resistance can not only be such that the speed of projectile reduces, and can generate a upward lift, make to penetrate
Bullet generates outer drift phenomenon.When the projectile with multiple cylindrical cavitation devices enters water with low-angle, water generates bullet
Resistance can be the power perpendicular to disk cavitator, although the speed that such power can make projectile enter water reduces, it is not
Projectile can be made to generate a upward lift, bullet can be effectively prevented and generate a upward movement, prevent from floating outside projectile existing
The generation of elephant.
The body of projectile is made of reinforcing rib 2 and empennage 3.The both ends of reinforcing rib and empennage are fixed, and are existed in this way
It is unlikely to deform or is damaged during navigation.This structure keeps the center of gravity of projectile earlier, in addition the stabilization of empennage,
Overturning when can preventing projectile from navigating by water under water enhances stability when projectile navigation.
Claims (6)
1. a kind of supercavity long-tail projectile for entering water suitable for low-angle, it is characterised in that: including bullet (1), reinforcing rib (2),
Empennage (3) and rear portion fixing end (4)；Bullet (1) has stair-stepping multistage cavitation device, and reinforcing rib (2), empennage (3) are fixed
Between bullet (1) and rear portion fixing end (4), while empennage (3) is uniformly around being fixed on reinforcing rib (2).
2. the supercavity long-tail projectile according to claim 1 for entering water suitable for low-angle, it is characterised in that: the bullet
(1) quantity of cavitation device is 6 to 8, and the radius of cavitation device changes linearly；Radius the smallest cavitation device in front end is that disk is empty
Change device；The length of every level-one cavitation device is gradually shortened from front to back.
3. the supercavity long-tail projectile according to claim 1 for entering water suitable for low-angle, it is characterised in that: the reinforcement
Muscle (2), which is located at, plays axis center position.
4. the supercavity long-tail projectile according to claim 1 for entering water suitable for low-angle, it is characterised in that: the reinforcement
The length of muscle (2) and empennage (3) accounts for the half of projectile length.
5. the supercavity long-tail projectile according to claim 1 for entering water suitable for low-angle, it is characterised in that: the empennage
(3) width is no more than the maximum radius of bullet.
6. the supercavity long-tail projectile according to claim 5 for entering water suitable for low-angle, it is characterised in that: the empennage
(3) quantity is six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910580221.3A CN110375594A (en) | 2019-06-28 | 2019-06-28 | A kind of supercavity long-tail projectile entering water suitable for low-angle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910580221.3A CN110375594A (en) | 2019-06-28 | 2019-06-28 | A kind of supercavity long-tail projectile entering water suitable for low-angle |
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| CN110375594A true CN110375594A (en) | 2019-10-25 |
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| CN201910580221.3A Pending CN110375594A (en) | 2019-06-28 | 2019-06-28 | A kind of supercavity long-tail projectile entering water suitable for low-angle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156866A (en) * | 2019-12-27 | 2020-05-15 | 哈尔滨工程大学 | High-speed entry navigation body second grade head form |
| CN111959674A (en) * | 2020-07-03 | 2020-11-20 | 西北工业大学 | Strong mobility supercavitation navigation device based on straight rudder preposed hydrodynamic layout |
| CN114858007A (en) * | 2022-04-28 | 2022-08-05 | 天津中德应用技术大学 | Underwater projectile configuration design |
| CN115265289A (en) * | 2022-05-16 | 2022-11-01 | 东北大学 | Bullet with small critical incident angle |
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| GB1193833A (en) * | 1966-07-14 | 1970-06-03 | Tampella Oy Ab | Improvements in or relating to Mortar Bombs |
| EP0174082A1 (en) * | 1984-07-23 | 1986-03-12 | Judd Engineering Limited | Projectile stabilising fin unit |
| DK153251B (en) * | 1981-09-09 | 1988-06-27 | Bofors Ab | AMMUNITION UNIT, PRESENTLY FOR EXERCISE FORM |
| US20100237186A1 (en) * | 2009-03-23 | 2010-09-23 | Lockheed Martin Corporation | Drag-stabilized water-entry projectile and cartridge assembly |
| US20110297031A1 (en) * | 2007-03-27 | 2011-12-08 | Lockheed Martin Corporation | Surface Ship, Deck-Launched Anti-Torpedo Projectile |
| CN107532874A (en) * | 2015-01-27 | 2018-01-02 | 联合战术系统有限公司 | Pneumatic projectile |
| CN207439277U (en) * | 2018-01-23 | 2018-06-01 | 北京思创天罡装备科技有限公司 | Underwater gun's bullet bullet based on supercavity principle |
| CN108180792A (en) * | 2017-12-29 | 2018-06-19 | 南京理工大学 | Supercavitating Projectile about granule surface contral drag reduction |
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2019
- 2019-06-28 CN CN201910580221.3A patent/CN110375594A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1193833A (en) * | 1966-07-14 | 1970-06-03 | Tampella Oy Ab | Improvements in or relating to Mortar Bombs |
| DK153251B (en) * | 1981-09-09 | 1988-06-27 | Bofors Ab | AMMUNITION UNIT, PRESENTLY FOR EXERCISE FORM |
| EP0174082A1 (en) * | 1984-07-23 | 1986-03-12 | Judd Engineering Limited | Projectile stabilising fin unit |
| US20110297031A1 (en) * | 2007-03-27 | 2011-12-08 | Lockheed Martin Corporation | Surface Ship, Deck-Launched Anti-Torpedo Projectile |
| US20100237186A1 (en) * | 2009-03-23 | 2010-09-23 | Lockheed Martin Corporation | Drag-stabilized water-entry projectile and cartridge assembly |
| CN107532874A (en) * | 2015-01-27 | 2018-01-02 | 联合战术系统有限公司 | Pneumatic projectile |
| CN108180792A (en) * | 2017-12-29 | 2018-06-19 | 南京理工大学 | Supercavitating Projectile about granule surface contral drag reduction |
| CN207439277U (en) * | 2018-01-23 | 2018-06-01 | 北京思创天罡装备科技有限公司 | Underwater gun's bullet bullet based on supercavity principle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156866A (en) * | 2019-12-27 | 2020-05-15 | 哈尔滨工程大学 | High-speed entry navigation body second grade head form |
| CN111959674A (en) * | 2020-07-03 | 2020-11-20 | 西北工业大学 | Strong mobility supercavitation navigation device based on straight rudder preposed hydrodynamic layout |
| CN114858007A (en) * | 2022-04-28 | 2022-08-05 | 天津中德应用技术大学 | Underwater projectile configuration design |
| CN115265289A (en) * | 2022-05-16 | 2022-11-01 | 东北大学 | Bullet with small critical incident angle |
| CN115265289B (en) * | 2022-05-16 | 2023-08-29 | 东北大学 | Bullet with small critical incident angle |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20191025 |