JP2709574B2 - Side thruster type 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 an improvement of a side thruster type flying object.

[0002]

2. Description of the Related Art Aerodynamic control of a flying object requires an expensive steering device to move a control surface. However,
In order to respond to recent demands for speeding up and lowering the cost of flying vehicles, actuators that are inexpensive and have a high response speed have been required.

[0003] In response to the above demand, conventionally, a large number of small rocket motors (ignition time: 0.5 to 200 ms) 2 are mounted on a surface including a center of gravity G of a flying object 1 as shown in FIG. 3, there is a side thruster type flying object that ignites the small rocket motor 2 to the outside and moves the flying object 1 in parallel on the outer peripheral surface including the center of gravity G. In the case of the flying object 1 that uses a side thruster for changing the route, 100 to 20
As many as zero small rocket motors 2 are mounted, and the small rocket motors 2 are ignited in synchronization with the rotation to change a predetermined path. [Prior art documents include, for example, Missile Engineering Encyclopedia (see page 140), Haruyoshi Kuno, Hara Shobo 199
Published on December 10, 2000. ]

[0004] In such a conventional side thruster-type flying object 1, the flying object 1 is rolled at high speed in order to uniformly consume the small rocket motor 2. Because of this roll rate, image guidance and inertial navigation of the flying object 1 become difficult, and a guidance system that deteriorates hit accuracy in a long range such as CLOS has to be adopted.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to facilitate image guidance and inertial navigation of a flying object without rotating the entire flying object at high speed, and to improve accuracy of a long-range hit. The aim is to provide a side thruster type flying object that can be used.

[0006]

Means for Solving the Problems One of the side thruster type flying objects of the present invention for solving the above problems is an outer peripheral portion near the center of gravity of the flying object or the flying object of the flying object more than the center of gravity.
The forward outer peripheral part on the traveling direction side or the traveling direction of the flying object
A large number of small rocket motors are provided on the outer peripheral part on the opposite side to constitute a side thruster part, and only this side thruster part is rolled by aerodynamic fins and an electric motor. is there.

[0007] One of the other side thruster type flying object of the present invention, the outer peripheral portion or the traveling direction of the front outer circumference portion or flight cane of the flying object than the center of gravity in the vicinity of the center of gravity of the flying object
A large number of small rocket motors are provided on the rear outer peripheral side opposite to the traveling direction of the body to form a side thruster part, and the side thruster part and the rear part thereof are rolled by aerodynamic fins and electric motors. It is characterized by having done.

[0008]

As described above, in the side thruster type flying object of the present invention, only the side thruster part or the side thruster part and the rear part thereof are rolled, so that the flying part equipped with the image sensor and the inertial sensor is mounted. The front part of the body does not rotate, so that the image guidance and inertial navigation of the flying object are facilitated, and the accuracy of a long range hit can be improved. In addition, the side thruster can be rolled at high speed, and the thruster, that is, the small rocket motor is uniformly consumed in synchronization with the rotation, so that the thrust deflection of the flying object can be easily performed. Changes are easy.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the side thruster type flying object of the present invention will be described with reference to FIGS.
Small rocket motor (ignition time the front outer circumference of the traveling direction of the flying object 1 than the center of gravity G of 0.5 to 200 [m
s] About) 2 are provided in a staggered arrangement at regular intervals of 100,
A bearing 7 is provided on a frame rod 6 which connects a front part 4 on the side in the traveling direction of the flying object 1 and a rear part 5 on the opposite side so that only the side thruster part 3 rolls and rolls. Has been supported through. The side thruster portion 3 is rotated by a canted angle (twisted) fin, that is, an empty caffin 8, and a bearing 7 is provided.
The angular velocity sensor 9 detects the roll angular velocity at which the front part 4 of the flying object 1 rotates due to friction or the like, and the electric motor 10 is driven so that this becomes zero. When the electric motor 10 is a brushless motor, the coil side is directly connected to the flying object 1 and the magnet side is directly connected to the side thruster unit 3.

Another embodiment will be described with reference to FIGS. 2A and 2B. The advance of the flying object 1 relative to the center of gravity G of the flying object 1 will be described.
150 small rocket motors (ignition time: about 0.5 to 200 [ms]) 2 are provided in a staggered arrangement at regular intervals on the front outer peripheral portion on the direction side to form a side thruster section 3, and the side thruster section 3 and the traveling direction The flying body 1 is rotatably connected to the front part 4 on the traveling direction side so that the rear part 5 on the opposite side of the flying body 1 rolls integrally. That is, the side thruster portion 3 and the rear portion 5 thereof are rotatably supported via a bearing 12 on a support shaft 11 projecting rearward from the rear surface of the front portion 4 of the flying object 1 and inserted through the side thruster portion 3. The rear part 5 is rotationally driven by the aerodynamic fins 8 ′ on the outer periphery of the canted angle (twisted) and the roll angular velocity is detected by the angular velocity sensor 9 installed on the front part 4 of the flying object 1. The electric motor 10 is driven so that the roll angular velocity becomes zero.

In the side thruster type flying object of the above two embodiments, only the side thruster part 3 is connected to the electric motor 10 and the aerodynamically driven rear part 5 opposite to the side thruster part 3 and the traveling direction of the flying object 1. Since the roll is rotated by the fins 8 and 8 ', the front part 4 of the flying body 1 on which the image sensor and the inertial sensor are mounted does not roll, and accordingly, the image guidance of the flying body 1 is performed. ， Inertial navigation becomes easier, and the accuracy of long range hit is improved. Further, the side thruster unit 3 can be rolled at high speed,
By uniformly consuming the thruster, that is, the small rocket motor 2 in synchronization with the rotation, the thrust deflection of the flying object 1 is easily performed, and the path change is also easily performed.

Of these two embodiments, the side thruster type flying object shown in FIG. 1 has an advantage that the aerodynamic performance can be easily grasped because the stable wing does not rotate.

Further, the side thruster type flying object shown in FIG. 2 does not need the aerodynamic fins 8 for rotation in the side thruster portion 3, and the mass of the portion not to be rolled is smaller than the mass of the portion to be rolled. Therefore, there is an advantage that control for preventing the roll from rotating is easy.

In the embodiment shown in FIG.
The direction of flight of the flying object 1 from the center of gravity G of the flying object 1
In this case, the side thruster unit 3 is provided on the outer peripheral portion near the center of gravity G or a flying object than the center of gravity G.
The same effect can be obtained even when provided on the rear outer peripheral portion on the opposite side to the traveling direction of 1 .

Similarly, in the embodiment shown in FIG. 2, the side thruster portion 3 is provided on the outer peripheral portion of the center of gravity G of the flying object 1 or on the rear outer peripheral portion on the opposite side of the traveling direction of the flying object 1 from the center of gravity G. The same effect can be obtained even when the rear portion is rolled integrally therewith.

[0016]

As can be seen from the above description, the side thruster type flying object of the present invention rolls the side thruster portion and does not roll the front part in the traveling direction of the flying object. Image guidance and inertial navigation are easier, and the accuracy of long range hits is improved. Also, the side thruster can be rolled at high speed, and the small rocket motor can be consumed uniformly in synchronization with the rotation, so that the thrust deflection of the flying object becomes easy and the path change becomes easy.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a side thruster type flying object according to the present invention, wherein a is a schematic side view, and b is a partially cutaway schematic side view.

FIG. 2 shows another embodiment of the side thruster type flying object of the present invention, wherein a is a schematic side view, and b is a partially broken schematic side view.

FIG. 3 is a schematic side view showing a conventional side thruster type flying object.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flying object 2 Small rocket motor 3 Side thruster part 4 Front part of flying object 5 Rear part of flying object 8,8 'Aerodynamic fin 9 Angular velocity sensor 10 Electric motor

Claims (2)

(57) [Claims] 1. A peripheral portion or the front outer circumference portion or range of the advancing direction of the flying object than the center of gravity in the vicinity of the center of gravity of the flying object
A small rocket motor is provided on the rear outer periphery on the opposite side to the traveling direction of the vehicle, forming a side thruster part, and only this side thruster part is rolled by aerodynamic fins and an electric motor. Side thruster type flying object. Wherein the outer peripheral portion or the front outer circumference portion or range of the advancing direction of the flying object than the center of gravity in the vicinity of the center of gravity of the flying object
A small rocket motor is provided on the rear outer peripheral side opposite to the traveling direction of the sheath to constitute a side thruster part, and the side thruster part and the rear part are rolled by aerodynamic fins and an electric motor. A side thruster type flying object characterized by: