JP3131330B2 - Flying object - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projectile having a trajectory, and more particularly to a trajectory in which the trajectory penetrates the target by the kinetic energy at the time of reaching the target.

[0002]

2. Description of the Related Art Conventionally, as the above-mentioned flying object, for example, there has been one shown in FIG.

A flying object 51 shown in FIG. 1 has a motor unit 5 as a thrust generating source for generating a flying thrust inside a case 52.
3 and the case 52, the structure has a configuration in which a core 54 having a considerably smaller diameter than that of the case 52 is housed. The core 54 is located at the head of the case 52 partitioned by the partition wall 52a.

[0004] The flying object 51 gives the entire kinetic energy possessed at this time to the target at the time of reaching the target to the small-diameter core 54 so that the bullet 54 penetrates into the target.

[0005] The flying object 51 is an INTERAVIA
3/1986.

[0006]

However, in the above-mentioned conventional flying object 51, when the launch vehicle is fired at a high speed,
Since the entire case 52 receives the impact load applied to the bullet core 54 transmitted through the partition wall 52a, this case 5
2 had to be made to have a rugged structure that could withstand buckling, and thus the weight had to be increased.

Further, since the core 54 is housed separately from the head of the case 52, there is a problem that the flying object 51 becomes large accordingly.

Further, since the flying object 51 collides with the bullet core 54 when it reaches the target, there is a possibility that it cannot penetrate a target having a bulletproof steel plate provided with explosives on its surface, for example. There was a problem that there were, and it was a conventional problem to solve these problems.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the conventional problems, and provides a flying object which can be made small and lightweight, and which can reliably penetrate a target. It is intended to be.

[0010]

According to the present invention, a thrust generating source for generating a flying thrust and a rocket-shaped and equipped with fixed wings are concentrically housed in a case,
In a rocket-shaped flying object that emits combustion gas from the thrust generating source from a nozzle provided at the tail part and flies,
The bullet was positioned on the tail side in the case, and the tail side of the bullet was supported by the case. When the target was reached, the bullet maintained the kinetic energy, and the thrust generation source was exhausted to form a space. It is characterized in that it is designed to glide inside the case in the flight direction, and such a structure of the flying object is a means for solving the above-mentioned conventional problems.

According to a second aspect of the present invention, the thrust generating source includes a sustainer propellant.

[0012]

In the flying object according to the first aspect of the present invention, since the bullet core is located on the tail side of the case and is housed concentrically with the thrust generating source, the overall length becomes short. However, when firing at high speed from the launcher, the impact load applied to the bullet core is received only at the tail side of the case, so there is no need to make the entire case a solid structure,
Therefore, the size and weight of the case can be reduced, and after firing, the combustion gas generated from the thrust generating source is ejected from the nozzle located at the tail of the rocket-shaped case. It is possible to fly stably while maintaining the speed.

At the time of reaching the target, when the head of the case collides, the rocket-shaped core released at this time maintains the kinetic energy, and the thrust generating source is exhausted to form a space. Gliding stably inside the case in the flight direction, and colliding with the target a short time after the collision of the case, for example, for a target having a bulletproof steel plate equipped with explosives on the surface, After removing the explosive, the bullet will maintain its kinetic energy and collide with the bulletproof steel plate, making it easier for the bullet to penetrate the target. Furthermore, in the flying object according to claim 2, since the thrust generating source includes the sustainer propellant, the high speed is maintained until the flying object reaches the target, and the bullet glides by that much. The kinetic energy possessed at that time increases, and the bullet core can more easily penetrate the target.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show an embodiment of a flying object according to the present invention.

As shown in FIG. 1, this flying object 1 is
No bets shape, solid propellant as thrust generation source for generating flight thrust (booster propellant and Sasutena propellant)
The motor case 10 is filled with the interior of the motor case 10 over substantially the entire length.

The flying object 1 also has a penetrator (bullet) 3 made of tungsten. The penetrator 3 has a rocket shape, the diameter of which is much smaller than the diameter of the motor case 10, and four fixed blades 3a are arranged at the tail at intervals of 90 °. In this case, the tail portion 11 of the motor case 10 has a cylindrical portion 13a that is located on the axis of the motor case 10 and that fits and supports the tail portion of the penetrator 3 as shown in an enlarged manner in FIGS. And a groove portion 13b which is arranged at 90 ° intervals around the cylindrical portion 13a and fits and supports the fixed wing 3a. 3 fits the tail portion into the cylindrical portion 13a of the penetrator support portion 13 and fits the four fixed wings 3a into the respective groove portions 13b, so that the solid propellant is disposed on the axis of the motor case 10. 2 so as to be supported concentrically. The penetrator 3 is formed by a cylindrical portion 13 a of the penetrator support 13.
By fitting the shear pin 4 through which
It is separably fixed to the motor case 10.

That is, the penetrator 3 is fixed to the tail portion 11 of the motor case 10 by the penetrator support portion 13 and the shear pin 4 at the stage of being fired and flying, and is cut by the inertia force at the stage of reaching the target. The kinetic energy at this time is maintained, and the solid propellant 2 is stably glide in the flight direction inside the motor case 10 which has become a space where the solid propellant 2 has been exhausted.

As shown in FIG. 5, the projectile 1 is fired with a large initial velocity given by the launcher 5 (T1 in the figure). After the launch, the combustion gas generated by the combustion of the solid propellant 2 is discharged. It is jetted from the nozzle 12 located at the tail of the rocket-shaped motor case 10 and flies in a stable manner. That is, after firing, the solid propellant 2 is accelerated by the combustion of the booster propulsion component (T2 in the figure), and The speed is maintained by the combustion of the sustainer propellant of the solid propellant 2 (T in the figure).
3) Flying in a stable manner and reaching the target 20 (T in the figure)
4) Yes.

During this time, the penetrator 3 is moved by the penetrator support portion 13 and the shear pin 4 to the motor case 1.
0, the impact load applied to the penetrator 3 during firing or acceleration does not reach the entire motor case 10 and the penetrator support 1
Since the heat treatment is applied to 3, it does not hinder the support of the penetrator 3.

At the stage when the target 20 is reached (T4 in the figure), first, as shown in FIG.
The head side collides and causes damage. At this moment, the penetrator 3 moves by inertia force, and
To separate from the penetrator support 13.

Next, the penetrator 3 maintains the kinetic energy at this time and glides stably in the flying direction inside the motor case 10 which has become a space where the solid propellant 2 has been exhausted. It collides with the bulletproof steel plate 21 already damaged.

At this time, even if the target 20 is one in which the explosive charge 22 is provided on the surface of the bulletproof steel plate 21 and the penetrator 3 is detonated by a sensor (so-called reactive armor), the motor case 10 After the explosive 22 on the surface is removed by the collision, the penetrator 3 maintains the kinetic energy and collides with the bulletproof steel plate 21, so that the penetrator 3 reliably penetrates the target.

In this embodiment, since the solid propellant 2 having the sustainer propellant component is used as the thrust generating source, the high speed is maintained until the flying object 1 reaches the target 20. Therefore, the damage to the target 20 due to the collision of the motor case 10 is large.

Therefore, in this flying object 1, the penetrator 3 is fixed to the tail portion 11 of the motor case 10 so as to be concentric with the solid propellant 2, so that the overall length can be shortened, and the launching time and acceleration Sometimes, the impact load applied to the penetrator 3 is not received by the entire motor case 10, so that it is not necessary to provide a rigid structure, and thus the weight is reduced.

Next, when the total weight of the flying object 1 was compared with that of a conventional flying object having a bullet core on its head, the results shown in FIG. 7 were obtained.

Thus, for example, in order to obtain the same increasing speed of 7 Mach after launch, this flying object 1 which does not require a robust structure has a total weight of about 43 × 9.8 N, while It was found that the total weight of the flying object was about 90 × 9.8 N, and it was demonstrated that the flying object 1 was significantly reduced in weight as compared with the conventional flying object.

The detailed structure of the flying object according to the present invention is not limited to the above embodiment.

[0029]

As described above, according to the flying object according to the first aspect of the present invention, the flying object has the above-described structure.
Since the overall length is short and the entire case does not need to be a rigid structure, it is possible to realize a small size and light weight, and fly stably while maintaining a predetermined speed until reaching a target. At the time of reaching the target, the rocket-shaped bullet released from the restraint when the head of the case collides, the kinetic energy is maintained, and the thrust source is exhausted and the space becomes empty Glide in the flight direction with good stability, and collide with the target at a short time after the collision of the case, so that the target can be reliably penetrated. In the flying object according to claim 2 of the present invention, Therefore, a very excellent effect that the goal can be more reliably achieved is brought about.

[Brief description of the drawings]

FIG. 1 is a partially broken side explanatory view showing a flying state of a flying object according to an embodiment of the present invention.

FIG. 2 is an explanatory sectional view taken along a line AA in FIG. 1;

FIG. 3 is an explanatory sectional view taken along a line B-O in FIG. 2;

FIG. 4 is an explanatory sectional view taken along a line C-O in FIG. 2;

FIG. 5 is an explanatory diagram showing a process from launching of the flying object of FIG. 1 to reaching a target.

FIG. 6 is an explanatory diagram showing a state at the moment when the flying object of FIG. 1 reaches a target.

FIG. 7 is a graph showing a comparison between the total weight of a flying object according to the present invention and the total weight of a conventional flying object.

FIG. 8 is a partially cutaway side view showing a projectile having a conventional core.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flying object 2 Solid propellant (thrust generating source) 3 Penetrator (bullet) 3a Fixed wing 10 Motor case 11 Motor case tail 12 Nozzle 20 Target

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F42B 12/04-12/06

Claims (2)

(57) [Claims] 1. A thrust generating source for generating a flying thrust and a rocket-shaped and equipped with fixed wings are housed concentrically inside a case, and combustion gas from the thrust generating source is stored in a tail portion. In a rocket-shaped flying object that is ejected from a provided nozzle and flies, the projectile is positioned on the tail side in the case, and the projecting end of the projectile is supported by the case. Maintain energy,
A flying object characterized in that it glides in the direction of flight in a case in which a thrust generating source has been exhausted and has become a space. 2. The flying object according to claim 1, wherein the thrust generating source comprises a sustainer propellant.