JP2014052092A - Missile launcher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a missile launcher having improved recharging performance of a missile and improved maintenance performance of the device.SOLUTION: A missile launcher which launches a missile flying toward a target while accelerating the missile at a plurality of steps includes a plurality of coils, a plurality of switches, a switch changing control device and a power source device. The plurality of coils are configured such that a space for housing the missile is formed at the center, performs the acceleration of a first step for the missile by an electro-magnetic force generated in accordance with a supplied current amount and launches the missile. The plurality of switches are disposed in each coil and switches the supply and stop of current to a corresponding coil. The switch changing control device is connected to the plurality of switches and controls the switches respectively. The power source device is connected to the plurality of switches and supplies current to each coil.

Description

  Embodiments described herein relate generally to a flying object launching apparatus.

  In recent years, in a flying object launching apparatus, a cold launch method is used in which a flying object is fired from the inside of the launching apparatus by a gas generator or the like, and then the explosives of a propulsion device that is the main body of the flying object are ignited. Since the cold launch method ignites the explosives of the main propulsion unit after the projectile is sufficiently far away from the launcher, the launcher is less susceptible to damage from the effects of the propellant explosives. There is an advantage that refilling is easy. Therefore, this is particularly effective for a silo for launching a flying object designed on the assumption that it is reused, a launching device mounted on a ship, and the like.

US Pat. No. 7,464,634

  However, the conventional cold launch launching method is mainly performed by a gas generator, and once used, maintenance work such as gas injection needs to be performed. That is, there is a problem that once a flying object is launched, it takes time until the next launch.

  In addition, as a method for reducing the work load of maintenance after use, a technique using a shape memory alloy is also known, but the operation speed of the shape memory alloy is slow and it is difficult to obtain a speed necessary for launching. . There is also a problem that the processability is poor and the cost is high.

  In view of the above-described problems of the prior art, it is an object of the present invention to provide a flying object launching apparatus that improves the refillability of the flying object and the maintainability of the apparatus.

  A flying object launching apparatus according to an embodiment of the present invention is a flying object launching apparatus that accelerates and launches a flying object flying toward a target in a plurality of stages, and includes a plurality of coils and a plurality of switches. And a switch switching control device and a power supply device. Multiple coils have a space to store the flying object in the center, and the flying object performs the first stage acceleration in the space by the electromagnetic force generated according to the supplied current amount. Fire the body. The plurality of switches are provided for each coil, and switch between supply and stop of current to the corresponding coil. The switch switching control device is connected to a plurality of switches and controls switching. The power supply device is connected to a plurality of switches and supplies a current to each coil.

The block diagram which shows the example of whole structure of the flying body launcher which concerns on one Embodiment of this invention. The flowchart which shows the operation example of the flying body launcher shown in FIG. The figure explaining the launching method of the flying body in the flying body launcher shown in FIG. 1 in steps.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of the overall configuration of a flying object launching apparatus 1 according to the present embodiment. As shown in the figure, the flying object launching device 1 is a device that launches a flying object F flying toward a target by a cold launch method, and includes N (N ≧ 2) coils 2 and A switch 3, a switch switching control device 4, a power supply device 5, a ferromagnetic body 6 and a position sensor 7 are provided.

  The plurality of coils 2 are formed with a space for storing the flying object F in the center, and the first stage acceleration in the cold launch method is performed on the flying object F by the electromagnetic force generated according to the supplied current amount. Perform in space and launch Flying Object F. The plurality of coils 2 are arranged side by side in the same direction so that the opening portions are aligned vertically, and form a coil array as a whole. The switch 3 is provided for each coil 2 and switches supply and stop of current to the corresponding coil 2. That is, all the coils 2 (coil (1) to coil (N)) are connected to the power supply device 5 through one corresponding switch 3. Supply / stop of current to the coil 2 can be switched by turning on / off each switch 3.

  The switch switching control device 4 is connected to the plurality of switches 3 and controls switching of the switches 3. That is, all the switches 3 (switch (1) to switch (N)) are connected to a common switch switching control device 4, and the switch switching control device 4 turns on / off all the N switches 3. Can be controlled. The power supply device 5 is connected to each of the plurality of switches 3 and supplies a current to each coil 2. As the power supply device 5, it is preferable to use a capacitor charged in advance with a predetermined electric capacity because the amount of current flowing through the coil 2 can be easily controlled to a constant amount.

  The ferromagnetic body 6 is a member made of a material that is strongly magnetized by a magnetic field and remains magnetized even when the magnetic field is removed, and is made of, for example, iron, cobalt, nickel and alloys thereof, ferrite, or the like. In the present embodiment, the ferromagnetic body 6 is disposed in a space formed in the center of a coil array composed of a plurality of coils 2, and a plurality of coils 2 (coil arrays) are controlled by switching control of the switch 3 in the switch switching control device 4. ) Are sequentially moved, and the flying object F arranged in front of the ferromagnetic material 6 is pressed in the firing direction from the bottom side.

  In addition, the flying object launching apparatus 1 is provided with a stopper mechanism (not shown) separately in the vicinity of the coil 2 (coil (N)) arranged on the most downstream side in the launching direction. Immediately after launching, the ferromagnetic body 6 is stopped in the space of the plurality of coils 2 (coil array) so that it does not separate with the flying body F. The position sensor 7 measures the position of the ferromagnetic body 6 in the coil array and outputs position information of the ferromagnetic body 6 to the switch switching control device 4.

  FIG. 2 is a flowchart showing an operation example of the flying object launching apparatus 1 shown in FIG. Moreover, FIG. 3 is a figure explaining the launching method of the flying body F in the flying body launching apparatus 1 shown in FIG. 1 step by step, before launching (FIG. 3 (A)), during launching (FIG. 3 ( B)) and after launching (FIG. 3C) are shown.

  First, when the launch operation of the flying object F is started based on a launch command from a control device (not shown), the switch switching control device 4 sets 1 as an initial value for the variable k (S201, FIG. 3A). )).

  Next, when the switch change control device 4 turns on the k-th switch 3 (switch (k)) (S202), a current flows through the k-th coil 2 (coil (k)) from the bottom (S203). A magnetic field is generated around the coil 2 (S204). By this magnetic field, the ferromagnet 6 receives a magnetic force in a direction attracted to the center of the kth coil 2 (S205), and the ferromagnet 6 and the flying body F accelerate toward the center of the kth coil 2. (S206, FIG. 3B).

  On the other hand, the position sensor 7 measures the position of the ferromagnetic body 6 (S207), and outputs the measured position information of the ferromagnetic body 6 to the switch switching control device 4.

  Next, the switch switching control device 4 determines whether or not the ferromagnetic body 6 has reached the vicinity of the center of the kth coil 2 based on the position information acquired from the position sensor 7 (S208). If it is determined that the vicinity of the center has been reached (S208: YES), the process proceeds to S209. On the other hand, when it is determined that the vicinity of the center has not been reached (S208: NO), the process returns to S206.

Next, the switch switching control device 4 turns off the k-th switch 3 and stops the current flowing through the k-th coil 2 (S209).
Next, the switch switching control device 4 adds 1 to the variable k (S210), and then determines whether or not all the N switches 3 and the coils 2 have been operated (S211). If it is determined that all have been operated (S211: YES, k> N), the process proceeds to S212. On the other hand, if it is determined that not all are operated (S211: NO, k ≦ N), the process returns to S202, and N pieces from the lowest level (k = 1) to the highest level (k = N) are returned. The operations of S202 to S210 are repeated until all the coils 2 and the switches 3 are operated.

  Next, the flying object F sufficiently accelerated by operating all the coils 2 and the switches 3 from the lowermost stage (k = 1) to the uppermost stage (k = N) is launched from the flying object launching apparatus 1. (S212). That is, the first stage acceleration in the cold lunch method is completed. The ferromagnetic body 6 accelerated together with the flying body F stays in the apparatus by a stopper mechanism (not shown), and returns to the original position by gravity or the like (FIG. 3C).

  And after flying the flying object F launched from the flying object launching device 1 to a distance at which the influence of the explosives on the flying object launching device 1 is eliminated, the explosives of the main propulsion device of the flying object F are used. By igniting, acceleration in the second stage in the cold launch system is performed (S213), and the flying object F obtains thrust and flies toward the target (S214).

  Thus, according to the flying object launching apparatus 1 according to the present embodiment, the first stage launch in the cold launch method can be performed using electromagnetic force without using explosives or a gas generator. After the flying object F is fired once, the new flying object F can be refilled in the internal space of the coil 2 and quickly fired without performing maintenance work such as gas injection.

<Modification>
In the above-described embodiment, the flying object F is fired using the ferromagnetic material 6 that can move in the plurality of coils 2. It is good also as a structure which sends the electric current to the coil which can move instead of the body 6, and launches the flying body F. FIG.

  Moreover, although the example at the time of using a general material for a coil was shown in the said embodiment, you may further provide the apparatus which cools a coil to the temperature which superconductivity generate | occur | produces. In this case, since the resistance value in the coil 2 is significantly reduced, it is possible to obtain a large acceleration with a small current. In addition, the power supply device 5 can be reduced in size and the number of coils can be reduced, and effects such as improved injection performance can be obtained.

  Furthermore, in the above embodiment, although there is no mention of controlling the current supplied to the coil 2 as a general example, the necessary sensor is configured and designed based on the speed and position of the flying object F. Alternatively, the current may be controlled using a control system. In this case, an effect that the launching operation of the flying object F can be stabilized occurs.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

F ... Flying object,
1 ... Flying object launcher,
2 ... Coil,
3 ... switch,
4 ... Switch switching control device,
5 ... power supply,
6 ... ferromagnet,
7: Position sensor.

Claims (5)

A flying object launcher that accelerates and launches a flying object that flies toward a target in multiple stages.
A space for storing the flying object is formed in the center, and the flying object is accelerated in the first stage in the space by the electromagnetic force generated according to the supplied current amount. A plurality of coils that fire
A plurality of switches provided for each of the coils, and for switching between supply and stop of current to the corresponding coils;
A switch switching control device that is connected to the plurality of switches and controls the switching;
A power supply device connected to the plurality of switches and supplying the current for each of the coils;
A flying object launcher characterized by comprising:   2. The apparatus according to claim 1, further comprising a ferromagnetic body that is disposed in the space, sequentially moves in the plurality of coils by switching control of the plurality of switches, and presses the flying body in a firing direction. Flying object launcher.   3. A stopper mechanism provided in the vicinity of the coil disposed on the most downstream side in the firing direction, further comprising a stopper mechanism for stopping the ferromagnetic body in the space after the flying body is launched. Flying object launcher.   The flying object launcher according to any one of claims 1 to 3, further comprising a cooling device that cools the plurality of coils to a temperature at which superconductivity occurs.   5. The flying object launching apparatus according to claim 1, wherein the power supply device is a capacitor precharged to a predetermined electric capacity.

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