Segmented series composite penetration structure

Abstract

The invention belongs to the technical field of deep underground target penetration, and particularly relates to a segmented series complex penetration structure which comprises a bullet tip, a bullet head and a bullet body, the bullet tip, the bullet head and the bullet body are sequentially connected, a charging cavity is formed in the rear end of the bullet body, a fuze assembly is installed at the rear end of the charging cavity, and the fuze assembly is connected with the bullet body. The bullet tip and the bullet body extend into the bullet head. A segmented series connection structure is adopted, the projectile tip and the projectile head open up a channel for projectile body penetration through a high-speed kinetic energy penetration mechanism, the projectile body continues to complete concrete fortification penetration within the optimal speed range of materials, the ultra-high-speed projectile body penetration efficiency is improved, the ultra-high-speed penetration power is improved by more than half compared with a traditional integral type penetration warhead, and the construction cost is reduced. The medium-high speed penetration performance is considered, and the wide speed range applicability is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of deep underground target penetration, and particularly relates to a segmented series composite penetration structure. BACKGROUND

[0002] With the modernization of national defense systems, strategic high-value targets such as military command posts, nuclear weapon facilities, missile silos, communication control protection works, aircraft hangars and the like have been fortified. With the increasing maturity of all-hypersonic vehicles and guidance technology, it has become possible to penetrate deep underground enemy targets at super-high speed.

[0003] Traditional conventional penetration structures all have the phenomenon of reverse reduction of penetration depth under the condition of super-high speed (greater than 5Ma) penetration. With the increase of speed, the penetration structure fails, and the penetration ability sharply decreases. The contribution in the direction of penetration depth is even lower than that under the condition of conventional penetration speed, and the super-high kinetic energy excitation cannot be played in the direction of penetration. Although the overall penetration projectile structure can effectively increase the upper limit of its penetration speed by means of reasonable structural design, increasing material strength, reducing filling ratio and increasing shell thickness, the effect is very limited and cannot solve the fundamental problem.

[0004] The traditional penetration structure adopts an overall structure. Under the action of conventional penetration speed 2.5Ma, the penetration stress and overload are small, and the strength limit of the projectile body material is not reached. Under this speed condition, the penetration of the target plate is quasi-rigid penetration, the projectile trajectory is basically collimated, and the deformation and mass loss of the projectile body can be basically ignored. However, with the development of super-high speed weapon platforms, the striking speed of the penetration warhead against the target can exceed 5Ma. With the increase of the penetration speed of the warhead, the penetration depth of the target increases. When the penetration speed exceeds 4Ma, the projectile body has a risk of breaking, and the penetration depth decreases obviously with the increase of the penetration speed. The traditional overall penetration structure has low penetration efficiency and cannot complete the given technical indicators. SUMMARY

[0005] The application provides a segmented series composite penetration structure to solve the above problems.

[0006] To achieve the above purpose, the application adopts the following technical scheme: A segmented series composite penetration structure, comprising a projectile tip, a projectile head and a projectile body, the projectile tip, the projectile head and the projectile body being connected in sequence, a charge cavity being formed at the rear end of the projectile body, and a fuze assembly being installed at the rear end of the charge cavity.

[0007] Further, the projectile tip and the projectile body both extend into the projectile head.

[0008] Still further, the projectile tip and the projectile body are connected with the projectile head in a threaded connection or welding manner.

[0009] Furthermore, the outer contour of the bullet tip can be any one of a cone shape, a convex arc curve, a concave arc curve, or a hyperbola.

[0010] Furthermore, when the outer contour of the bullet tip is conical, its cone angle is 0°~180°.

[0011] Furthermore, the projectile tip and body are made of any one of AerMet100 ultra-high strength alloy steel, G50 ultra-high strength alloy steel, or DT300 ultra-high strength alloy steel.

[0012] Furthermore, the warhead is made of any one of depleted uranium, tungsten-based alloys, high-entropy alloys, rare-earth-based active materials, or zirconium-based active materials.

[0013] Furthermore, the charge chamber uses JEOL-1 charge or 9025 insensitive charge, and the fuze assembly is a time-delay all-electronic fuze or an all-electronic fuze with layer counting function.

[0014] Furthermore, the head of the projectile is connected to the projectile head, and the head of the projectile has a double-conical structure, a pointed oval structure, or a combination of conical and oval structures.

[0015] Compared with the prior art, the present invention has the following advantages: This invention adopts a segmented series structure. The tip and warhead use the high-speed kinetic energy penetration mechanism to open a channel for the projectile to penetrate, so that the projectile can continue to penetrate the concrete fortification within the optimal velocity range of the material, thereby improving the penetration efficiency of the ultra-high speed projectile. The ultra-high speed penetration power is more than 50% higher than that of the traditional integral penetration warhead, while taking into account the medium and high speed penetration performance to achieve wide velocity range applicability.

[0016] This invention utilizes a projectile design that encapsulates the projectile body to avoid the extreme overload environment caused by ultra-high-speed penetration. It solves the problem of reduced penetration depth due to projectile material failure under ultra-high-speed penetration conditions, achieving a technological breakthrough in the field of ultra-high-speed penetration. This invention utilizes a projectile strength-toughness matching method to improve its tensile, bending, and shear resistance, protecting the integrity of the projectile. At the same time, the tail skirt angle of the projectile stage is adjustable to stabilize the projectile attitude and trajectory under different penetration and impact speeds.

[0017] This structure achieves ultra-high-speed penetration, especially above Mach 5, across a wide velocity range through a segmented, tandem composite method. By adjusting the length matching relationship of the tip, warhead, and body segments according to the target velocity, it effectively improves the destructive power against reinforced concrete targets. Under ultra-high-speed conditions, the penetration capability of the segmented, tandem composite projectile is 50% higher than that of traditional integral penetration projectiles; under medium- and high-speed conditions, the penetration capability of the segmented, tandem composite projectile is comparable to that of integral penetration projectiles. Simultaneously, this invention features a compact structure, high space utilization, and good trajectory alignment, ensuring the integrity of the projectile structure and its penetration power. It improves both the utilization of the cabin space and the terminal penetration power. This structure can achieve enhanced penetration capability across the entire velocity range, meeting the needs of different tactical and technical indicators and different battlefield environments.

[0018] The cone angle of the projectile tip of this invention can be adjusted within the range of 0° to 180° to suit different penetration conditions. Attached Figure Description

[0019] Fig. 1 This is a schematic diagram of the structure of the present invention; Fig. 2 This is a schematic diagram of the tip structure of the projectile of the present invention; Fig. 3 This is a schematic diagram of the structure of the warhead of the present invention; Fig. 4 This is a schematic diagram of the structure of the projectile of the present invention; In the diagram, 1 is the projectile tip, 2 is the projectile body, 3 is the propellant chamber, and 5 is the fuse assembly. Detailed Implementation

[0020] To further illustrate the technical solution of the present invention, the present invention will be further described below through embodiments. Example 1

[0021] like Figs. 1 to 4As shown, a segmented tandem composite penetration structure includes a projectile tip 1, a projectile head 2, and a projectile body 3. The outer contour of the projectile tip 1 is any one of a conical, convex arc curve, concave arc curve, or hyperbola. The projectile tip 1, projectile head 2, and projectile body 3 are connected in sequence. Both the projectile tip 1 and projectile body 3 extend into the projectile head 2. The projectile tip 1 and projectile body 3 are connected to the projectile head 2 by threaded connection or welding. The head of the projectile body 3 is connected to the projectile head 2. The head of the projectile body 3 is a double conical structure, a pointed oval structure, or a combination of conical and oval structures. A charge cavity 4 is opened at the rear end of the projectile body 3, and a fuse assembly 5 is installed at the rear end of the charge cavity 4. The projectile tip 1 and projectile body 3 are made of any one of AerMet100 ultra-high strength alloy steel, G50 ultra-high strength alloy steel, or DT300 ultra-high strength alloy steel. The projectile 2 is made of any one of depleted uranium, tungsten-based alloys, high-entropy alloys, rare earth-based active materials, or zirconium-based active materials. The propellant cavity 4 uses JEOL-1 propellant or 9025 insensitive propellant. The fuze assembly 5 is a time-delay all-electronic fuze or an all-electronic fuze with layer counting function. Example 2

[0022] In this embodiment, the outer contour of the bullet tip 1 is conical, and its cone angle is 0°~180°.

[0023] The foregoing has shown and described the main features and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A segmented tandem composite penetration structure, characterized in that: It includes a projectile tip (1), a projectile head (2) and a projectile body (3), which are connected in sequence. A charging cavity (4) is provided at the rear end of the projectile body (3), and a fuse assembly (5) is installed at the rear end of the charging cavity (4).

2. The segmented series composite penetration structure according to claim 1, characterized in that: Both the projectile tip (1) and the projectile body (3) extend into the projectile head (2).

3. The segmented tandem composite penetration structure according to claim 1, characterized in that: The projectile tip (1) and the projectile body (3) are connected to the projectile head (2) by means of threaded connection or welding.

4. The segmented series composite penetration structure according to claim 1, characterized in that: The outer contour of the bullet tip (1) can be any one of a cone shape, a convex arc curve, a concave arc curve, or a hyperbola.

5. The segmented series composite penetration structure according to claim 1, characterized in that: When the outer contour of the bullet tip (1) is conical, its cone angle is 0°~180°.

6. The segmented series composite penetration structure according to claim 1, characterized in that: The projectile tip (1) and projectile body (3) are made of any one of AerMet100 ultra-high strength alloy steel, G50 ultra-high strength alloy steel or DT300 ultra-high strength alloy steel.

7. The segmented series composite penetration structure according to claim 1, characterized in that: The material of the warhead (2) is any one of depleted uranium, tungsten-based alloys, high-entropy alloys, rare earth-based active materials, or zirconium-based active materials.

8. The segmented series composite penetration structure according to claim 1, characterized in that: The charge chamber (4) uses JEOL-1 charge or 9025 insensitive charge, and the fuze assembly (5) is a time-delay all-electronic fuze or an all-electronic fuze with layer counting function.

9. The segmented series composite penetration structure according to claim 1, characterized in that: The head of the projectile (3) is connected to the projectile (2), and the head of the projectile (3) is a double cone structure, a pointed oval structure, or a combination of cone and oval structure.

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