Multi-size pre-controlled fragments for a fragment warhead

Abstract

The present application belongs to the technical field of fragment warhead, and particularly relates to a multi-size pre-controlled fragment for fragment warhead. The fragment warhead is pre-fabricated with grooves on the shell to form a multi-size pre-controlled groove array configuration, and to form multi-size pre-controlled fragments when striking. In the multi-size pre-controlled groove array configuration, grooves are engraved on different regions of the shell according to different sizes, and at least three different sizes of pre-controlled grooves are formed to correspond to three different sizes of fragments. The three different sizes of fragments include the smallest small fragments (1), the medium-size middle fragments (2), and the largest large fragments (3). After the fragment structure of the present application is adopted, the metal utilization rate of the projectile body is improved, a kind of warhead damage to multiple targets is realized, the concentrated killing radius of the warhead and the density of the penetrated steel plate reach the index requirements, and there is a certain margin, which greatly improves the damage efficiency of the fragment warhead.

Description

Technical Field

[0001] This invention belongs to the technical field of fragmentation warheads, specifically relating to a multi-size pre-controlled fragmentation for a fragmentation warhead. Background Technology

[0002] Pre-drilling grooves on the steel casing of the warhead is one of the main methods for forming kill elements in fragmentation warheads. Typically, grooves are drilled on the warhead casing according to a specific dimensional configuration, such as... Figure 1 As shown, the width, depth, and included angle of the transverse and longitudinal grooves on the entire shell are all of the same size, so they can only form fragments of a single size, and can only effectively strike one type of target when hitting a target.

[0003] As battlefield situations evolve, high-explosive fragmentation warheads are increasingly developing towards multi-functionality, requiring them to engage multiple targets. Since different targets require different kinetic energy, various fragments of different sizes are needed to effectively strike personnel, technical weapons, and light armored vehicles. If only a single type of fragment is used, it cannot damage multiple targets on the battlefield, significantly reducing the warhead's destructive effectiveness. For example, if the fragments primarily target personnel, their small size may prevent them from striking technical targets; conversely, if the larger fragments primarily target technical weapons, the smaller number of fragments reduces fragment density, thus significantly diminishing destructive effectiveness. Summary of the Invention

[0004] (a) Technical problems to be solved The technical problem to be solved by this invention is: how to more effectively strike multiple targets.

[0005] (II) Technical Solution To solve the above-mentioned technical problems, the present invention provides a multi-size pre-controlled fragment for a fragmentation warhead. The fragmentation warhead has grooves pre-cut on its shell to form a multi-size pre-controlled groove array configuration, which forms multi-size pre-controlled fragments upon impact. In the multi-size pre-controlled groove array configuration, at least three different sizes of pre-controlled grooves are formed by grooving different areas of the shell according to different sizes, corresponding to three different sizes of fragments; The three different sizes of fragments include the smallest fragment (1), the medium fragment (2), and the largest fragment (3).

[0006] The three different sizes of pre-control tanks are located in different adjacent areas.

[0007] The three different sizes of pre-control slots are all composed of two slots, one horizontal and one vertical. The horizontal and vertical slots are at 45 degrees to the radius of the warhead, and the two slots are at a 90-degree angle to each other, resulting in rhomboid fragments.

[0008] The three different sizes of pre-control tanks are located in adjacent areas.

[0009] The distribution of the three different sizes of pre-control grooves is as follows: along the spring axis, they are the areas corresponding to small fragments (1), medium fragments (2), and large fragments (3) respectively. Alternatively, along the bullet axis, the regions corresponding to the medium fragment (2), large fragment (3), and small fragment (1) are arranged in sequence; Alternatively, along the trajectory of the projectile, the regions corresponding to the large fragment (3), small fragment (1), and medium fragment (2) are arranged sequentially. Alternatively, along the direction of the projectile axis, the regions corresponding to small fragments (1), large fragments (3), and medium fragments (2) are arranged in sequence; Alternatively, along the trajectory of the projectile, the regions corresponding to the medium fragment (2), small fragment (1), and large fragment (3) are arranged sequentially. Alternatively, along the direction of the projectile axis, the regions corresponding to the large fragment (3), medium fragment (2), and small fragment (1) are arranged in sequence.

[0010] Among them, in the regions where the three different sizes of pre-controlled grooves are located, the transverse and longitudinal grooves of each region are set to share a through groove with the transverse and longitudinal grooves of the adjacent regions at the corresponding positions.

[0011] The longitudinal and transverse grooves in adjacent areas are designed as through grooves, meaning that the longitudinal or transverse grooves between adjacent areas are collinear. This ensures that when the shell is detonated and fractured, the fragment intervals do not affect each other, and fragments of different sizes do not interfere with each other during the stress groove forming process. It also prevents some fragments from rupturing prematurely, causing the shell to depressurize rapidly and leading to an increase in the number of fragments.

[0012] The depth of the pre-controlled groove is selected to be 0.5 to 0.67 times the wall thickness. The above measures can prevent uneven stress during the detonation process from causing fragments to clump together or excessive fragments.

[0013] Among them, the small fragments (1) are used to strike personnel, the medium fragments (2) are used to strike technical weapons, and the large fragments (3) are used to strike light armored vehicles.

[0014] The specific fragment sizes of the three types of fragments are determined based on velocity distribution and impact kinetic energy; the kinetic energy for striking personnel is 98J, the kinetic energy for striking technical weapons is 600J, and the kinetic energy for striking light armored vehicles (12mm thick armor steel plates) is 4900J.

[0015] (III) Beneficial Effects Compared with the prior art, the technical solution of the present invention pre-cuts grooves in the steel shell to form multiple pre-controlled fragment regions of different sizes, thereby obtaining fragments of various sizes and effectively striking multiple targets.

[0016] In a missile project, due to warhead weight limitations, the warhead, while lightweight, needs to strike various targets including personnel and technical weapons, and the technical weapons have high density requirements. By adopting the fragmentation structure of this invention, the metal utilization rate of the missile body is improved, enabling a single warhead to destroy multiple targets. The warhead's dense kill radius and penetration density in steel plates both meet the required specifications with a certain margin, significantly enhancing the destructive effectiveness of the fragmentation warhead. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a slotted array configuration for forming a fragment in the prior art.

[0018] Figure 2 This is a schematic diagram of the pre-controlled groove array configuration for forming multiple fragments according to the present invention. Detailed Implementation

[0019] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0020] To solve the above-mentioned technical problems, the present invention provides a multi-size pre-controlled fragment for a fragmentation warhead. The fragmentation warhead has grooves pre-cut on its shell to form a multi-size pre-controlled groove array configuration, which forms multi-size pre-controlled fragments upon impact. In the multi-size pre-controlled groove array configuration, at least three different sizes of pre-controlled grooves are formed by grooving different areas of the shell according to different sizes, corresponding to three different sizes of fragments; The three different sizes of fragments include the smallest fragment (1), the medium fragment (2), and the largest fragment (3).

[0021] The three different sizes of pre-control tanks are located in different adjacent areas.

[0022] The three different sizes of pre-control slots are all composed of two slots, one horizontal and one vertical. The horizontal and vertical slots are at 45 degrees to the radius of the warhead, and the two slots are at a 90-degree angle to each other, resulting in rhomboid fragments.

[0023] The three different sizes of pre-control tanks are located in adjacent areas.

[0024] The distribution of the three different sizes of pre-control grooves is as follows: along the spring axis, they are the areas corresponding to small fragments (1), medium fragments (2), and large fragments (3) respectively. Alternatively, along the bullet axis, the regions corresponding to the medium fragment (2), large fragment (3), and small fragment (1) are arranged in sequence; Alternatively, along the trajectory of the projectile, the regions corresponding to the large fragment (3), small fragment (1), and medium fragment (2) are arranged sequentially. Alternatively, along the direction of the projectile axis, the regions corresponding to small fragments (1), large fragments (3), and medium fragments (2) are arranged in sequence; Alternatively, along the trajectory of the projectile, the regions corresponding to the medium fragment (2), small fragment (1), and large fragment (3) are arranged sequentially. Alternatively, along the direction of the projectile axis, the regions corresponding to the large fragment (3), medium fragment (2), and small fragment (1) are arranged in sequence.

[0025] Among them, in the regions where the three different sizes of pre-controlled grooves are located, the transverse and longitudinal grooves of each region are set to share a through groove with the transverse and longitudinal grooves of the adjacent regions at the corresponding positions.

[0026] The longitudinal and transverse grooves in adjacent areas are designed as through grooves, meaning that the longitudinal or transverse grooves between adjacent areas are collinear. This ensures that when the shell is detonated and fractured, the fragment intervals do not affect each other, and fragments of different sizes do not interfere with each other during the stress groove forming process. It also prevents some fragments from rupturing prematurely, causing the shell to depressurize rapidly and leading to an increase in the number of fragments.

[0027] The depth of the pre-controlled groove is selected to be 0.5 to 0.67 times the wall thickness. The above measures can prevent uneven stress during the detonation process from causing fragments to clump together or excessive fragments.

[0028] Among them, the small fragments (1) are used to strike personnel, the medium fragments (2) are used to strike technical weapons, and the large fragments (3) are used to strike light armored vehicles.

[0029] The specific fragment sizes of the three types of fragments are determined based on velocity distribution and impact kinetic energy; the kinetic energy for striking personnel is 98J, the kinetic energy for striking technical weapons is 600J, and the kinetic energy for striking light armored vehicles (12mm thick armor steel plates) is 4900J.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multi-size pre-controlled fragment for a fragmentation warhead, characterized in that, The fragmentation warhead has pre-grooved grooves on its shell to form a multi-sized pre-controlled groove array configuration, which forms multi-sized pre-controlled fragments upon impact. In the multi-size pre-controlled groove array configuration, at least three different sizes of pre-controlled grooves are formed by grooving different areas of the shell according to different sizes, corresponding to three different sizes of fragments; The three different sizes of fragments include the smallest fragment (1), the medium fragment (2), and the largest fragment (3).

2. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 1, characterized in that, The three different sizes of pre-control tanks are located in different areas and are adjacent to each other.

3. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 1, characterized in that, The three different sizes of pre-control slots are all composed of two slots, one horizontal and one vertical. The horizontal and vertical slots are at 45 degrees to the radius of the warhead, and the two slots are at a 90-degree angle to each other, resulting in rhomboid fragments.

4. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 3, characterized in that, The three different sizes of pre-control tanks are located in adjacent areas.

5. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 4, characterized in that, The distribution of the three different sizes of pre-control grooves is as follows: along the spring axis, the regions corresponding to small fragments (1), medium fragments (2), and large fragments (3) are in turn; Alternatively, along the bullet axis, the regions corresponding to the medium fragment (2), large fragment (3), and small fragment (1) are arranged in sequence; Alternatively, along the trajectory of the projectile, the regions corresponding to the large fragment (3), small fragment (1), and medium fragment (2) are arranged sequentially. Alternatively, along the direction of the projectile axis, the regions corresponding to small fragments (1), large fragments (3), and medium fragments (2) are arranged in sequence; Alternatively, along the trajectory of the projectile, the regions corresponding to the medium fragment (2), small fragment (1), and large fragment (3) are arranged sequentially. Alternatively, along the direction of the projectile axis, the regions corresponding to the large fragment (3), medium fragment (2), and small fragment (1) are arranged in sequence.

6. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 5, characterized in that, In the regions containing the three different sizes of pre-controlled slots, the transverse and longitudinal slots of each region are configured to share a through slot with the transverse and longitudinal slots of the adjacent regions at the corresponding positions.

7. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 6, characterized in that, The longitudinal and transverse grooves in adjacent areas are all designed as through grooves, that is, the longitudinal or transverse grooves between adjacent areas are collinear. This ensures that when the shell is detonated and fractured, the fragments in each section do not affect each other, and the fragments of different sizes do not interfere with each other during the stress groove forming process. It also prevents some fragments from rupturing prematurely, causing the shell to depressurize rapidly and leading to the increase of fragments in another part.

8. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 6, characterized in that, The depth of the pre-controlled groove is selected to be 0.5 to 0.67 times the wall thickness.

9. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 8, characterized in that, The small fragments (1) are used to strike personnel, the medium fragments (2) are used to strike technical weapons, and the large fragments (3) are used to strike light armored vehicles.

10. The multi-size pre-controlled fragments for a fragmentation warhead as described in claim 9, characterized in that, The specific fragment sizes for the three types of fragments are determined based on velocity distribution and impact kinetic energy; the kinetic energy for striking personnel is 98J, for striking technical weapons it is 600J, and for striking light armored vehicles it is 4900J.

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