JP2012101669A - Flying object and flying method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flying object that can fly while cutting a parachute even if a flying object body collides with the parachute, and to provide a flying method thereof.SOLUTION: The flying object 11 is transported to the air and launched in the air by another machine 37. The flying object includes: the flying object body 13 having a cylindrical body 15; the parachute 25 connected further on a tip side than the center of gravity of the flying object body 13; and a cusped member 23 mounted at a tip of the flying object body 13 and having a sharp cutting blade on an outer edge thereof.

Description

  The present invention relates to a flying object launched in the air and a flying method of the flying object.

A flying object means a flying object such as a space rocket or ballistic missile flying in the high sky.
Air launching means launching a flying object in the air.

Air launch has various advantages. For example, aerial launch does not require a large launch range.
In addition, since the weather is stable in the stratosphere, it can be launched without being affected by the weather.
Moreover, since it can be launched in an arbitrary airspace, it can be launched under optimum conditions according to the target trajectory.
Furthermore, since the atmosphere is thin in the high sky, air resistance loss and thrust loss are reduced, so that the target trajectory can be reached with a small flying object.
As described above, since air launch has various advantages, an air launch technique has been used in which a flying object is transported to a high altitude by an aircraft and then launched.
On the other hand, since there is a limit to the weight of aircraft, it is important to reduce the weight of the flying object.
Such prior art is disclosed in Non-Patent Document 1.

J. et al. Snyder, J .; Mentek, F.M. Shanta, J .; Bridges “FLIGHT DEMONSTRATION OF THE AltAir AIR DEPLOYED BALLISTIC MISSILE TARGET” URL: http: // www. Stormingmedia. us / authors / Santa_F_. html

FIG. 1 is a time lapse diagram when a conventional flying object 1 is launched in the air.
In this figure, (A) the flying object 1 is mounted on the inside of the aircraft 3 on a sled 2.
(B) When transported into the air, the flying object 1 is released from the aircraft 3 together with the sled 2 in a form pulled out by the parachute 4.
(C) A parachute 5 different from that attached to the thread 2 is attached to the tip of the flying body main body 7 of the flying body 1. When the flying object 1 separated from the sled 2 suddenly descends, the parachute 5 attached to the flying object body 7 opens.
(D) Thereafter, the flying object 1 starts to fly, and the parachute 5 leaves the flying object 1 and starts to fly along a predetermined flight path.

  However, since the parachute 5 is connected to the tip of the flying body main body 7, it is highly probable that the parachute 5 is on the flight path of the flying body 1 when the flying body 1 is flying. At that time, it is necessary to perform an avoidance movement so as not to collide with the parachute 5, and there is a problem that the propellant is used excessively (FIG. 1D).

FIG. 2 is a diagram showing another conventional flying object 1 launched in the air.
As shown in FIG. 2, in order to prevent the flying object 1 from colliding with the parachute 5, there is also means for suspending the parachute 5 from the trunk portion 6 of the flying object 1. However, the flying object 1 rotates around the parachute 5 and the flying object 1 may fly in a direction different from the target direction. For this reason, there is a possibility that a problem that the propellant is excessively used to return to the original course may occur.

  The present invention has been developed to solve the above-described problems. That is, an object of the present invention is to provide a flying object and a flying object flying method capable of flying while tearing the dropping umbrella even when the flying object body collides with the dropping umbrella.

According to the present invention, a flying object that is transported in the air by other aircraft and launched in the air,
A flying body having a cylindrical body,
A parachute connected to the tip side from the center of gravity of the flying body;
There is provided a flying object comprising a pointed member attached to the tip of the flying object main body and having a sharp cutting edge at an outer edge.

  Further, the pointed member has a central axis on the same line as the central axis of the flying body.

  The pointed member has a pointed tip with respect to the attachment portion, and the cross-sectional dimension gradually decreases toward the tip.

  The pointed member has a circular taper member having a circular cross section perpendicular to the central axis, and the cutting blade is attached to a side surface of the circular taper member.

  Further, the pointed member has a polygonal taper member whose cross section perpendicular to the central axis is a polygon, and the cutting blade is attached to a side passing through a side surface or a tip of the polygon taper member. .

  Further, the pointed member has a star-shaped taper member whose cross section perpendicular to the central axis is a star-shaped polygon, and the cutting blade is located at the tip of the star-shaped polygon.

  The pointed member has a plurality of flat plates whose inner ends are located on the central axis and extend radially outward in a radial direction, and the cutting blades are located at the outer ends of the flat plates.

Further, according to an embodiment of the present invention, a flying body having a cylindrical body,
A parachute connected to the tip side from the center of gravity of the flying body;
A flying method of a flying object comprising a pointed member attached to a tip of the flying object main body and having a sharp cutting edge on an outer edge,
Transported into the air by other aircraft, fired in the air,
After opening the parachute, release the connection,
There is provided a flying object flying method characterized in that the parachute flies through the pointed member to fly.

According to the above-described flying object and flying method of the flying object of the present invention, the flying object body does not need to avoid a parachute and there is no loss of propellant. Therefore, a propellant can be saved and the weight of the flying body mounted on another aircraft can be reduced. Further, the sharp tip of the pointed member reduces the air resistance, and the flight performance is improved. In addition, there is no need to perform avoidance motion or trajectory correction.

It is a time passage figure when the conventional flying object is launched in the air. It is a figure which shows another conventional flying object 1 launched in the air. It is an external view of the flying body of 1st Embodiment by this invention. It is an AA arrow line view of FIG. It is use explanatory drawing of the flying body of 1st Embodiment by this invention. It is an external view of the flying body of 2nd Embodiment by this invention. It is an external view of the flying body of 3rd Embodiment by this invention. It is an external view of the flying body of 4th Embodiment by this invention. It is a BB arrow line view of FIG. It is an external view of the flying body of 5th Embodiment by this invention. It is CC arrow line view of FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.

FIG. 3 is an external view of the flying object 11 according to the first embodiment of the present invention.
11 is a flying body, 13 is a flying body, 15 is a trunk, 17 is a fairing, 19 is a nozzle, 21 is a cutting blade, 23 is a pointed member, 25 is a parachute, 27 is a suspension rope, and 29 is a pyrotechnic. , 30 is the tip of the pointed member.

The flying object 11 of the present embodiment includes a flying object body 13 having a cylindrical body 15, a parachute 25 connected to the distal end side from the center of gravity of the flying object body 13, and an outer edge attached to the distal end of the flying object body 13. And a pointed member 23 having a sharp cutting edge 21.
The aircraft body of the flying body 13 is composed of a cylindrical body portion 15 and a fairing 17 provided at the tip thereof.
The fairing 17 is of an ogive type or a circular shape with a low air resistance, but may have other shapes.

  The tail of the aircraft of this embodiment is not provided with a tail, but a tail for obtaining aerodynamic stability may be provided.

  There is a rocket propulsion device inside the fuselage. The propellant of the rocket propulsion device may be a solid propellant or a liquid propellant. Moreover, you may employ | adopt another propulsion apparatus.

When the rocket propulsion device is a solid rocket motor, the rocket propulsion device includes a solid propellant, a motor case, a nozzle, an ignition device, and an insulation.
The solid rocket motor ignites the propellant with an ignition device, and obtains the propulsive force of the flying body 13 by ejecting high-temperature and high-pressure combustion gas generated by the combustion of the solid propellant from the nozzle into the atmosphere.
The solid propellant may be a double base propellant or a composite propellant.

  The nozzle 19 is desirably located at the tail end of the flying body main body 13 and has a thrust deflector.

  Depending on the intended use of the flying object 11, an artificial satellite may be mounted.

  In addition, a warhead or a fuze may be provided depending on another usage.

In addition, a pointed member 23 having a sharp cutting edge 21 at the outer edge is installed at the tip of the fairing 17 of the flying body 13. The pointed member 23 is positioned such that the center axis of the flying body 13 and the center axis of the pointed member 23 are on the same line, the tip 30 is pointed with respect to the mounting portion, and the cross-sectional dimension gradually decreases toward the tip 30. To do.
The material of the pointed member 23 is preferably steel, aluminum alloy, stainless steel, carbon steel, ceramic, high carbon stainless steel, or the like, but may be other materials.
The pointed member 23 is preferably attached to the fairing 17 by welding or screws. Alternatively, the pointed member 23 may be formed integrally with the fairing 17.
Moreover, you may provide pyrotechnics between the fairing 17 and the peak member 23 so that the peak member 23 can be separated from the fairing 17 after the use of the peak member 23.

  A parachute 25 is attached to the flying body 13 in order to reduce the falling speed. In this embodiment, three parachutes 25 are attached, but the number of parachutes 25 is not limited to this. Moreover, any type of the parachute 25 may be used.

The suspension cord 27 of the parachute 25 is connected to the tip side from the center of gravity of the flying body main body 13.
A pyrotechnic 29 such as a cutter is attached to a connecting portion between the suspension rope 27 and the trunk portion 15 of the flying body main body 13.
Since the suspension cable 27 is attached to the front end side of the center of gravity of the flying body 13, the flying body main body 13 descends so that the center axis is vertical with the leading end facing upward when it descends in a windless state.

FIG. 4 is an AA arrow view of FIG.
31 is a circular taper member, and 33 is an edge.
The tip member 23 of the present embodiment has a tip 30 that is sharp with respect to the attachment portion to the fairing 17, and the cross-sectional dimension gradually decreases toward the tip 30.
The pointed member 23 includes a circular tapered member 31 having a circular cross section perpendicular to the central axis and a cutting blade 21 having a sharp edge 33. The cutting edge 21 is attached to the side surface of the circular taper member 31.
Further, the cutting blade 21 of this embodiment is installed from the tip 30 of the pointed member 23, and the edge 33 is a straight line.
However, the present invention is not limited to this, and the cutting edge 21 may be installed from the rear of the tip 30. Further, the edge 33 may draw an arc.
Furthermore, the cutting edge 21 may not be a flat surface. That is, the cutting edge 21 may draw a spiral curve along the side surface of the circular taper member 31 in accordance with the rotation of the flying body 13 centering on the central axis.
Moreover, the material of the cutting blade 21 and the circular taper member 31 may be the same or different. In other words, circular taper material made of plastic, aluminum alloy, steel, stainless steel, carbon steel, ceramic, high carbon stainless steel, etc., and cut made of steel, aluminum alloy, stainless steel, carbon steel, ceramic, high carbon stainless steel, etc. The blades 21 may be combined.

  Next, with reference to FIG. 5, a method of using the flying object 11 of the present invention will be described. FIG. 5 is an explanatory diagram of the use of the flying object 11 according to the first embodiment of the present invention. 35 is a thread, 37 is another machine, 38 is a parachute, and 39 is a flight path.

(A) The flying object 11 is transported into the air by the other aircraft 37. In this embodiment, a method of mounting the flying object 11 on the sled 35 and mounting it in the other machine 37 is adopted. Further, the transportation method is not limited to this, and the transportation method may be fixed and transported outside the other machine 37 such as under the wing or under the body of the other machine 37.
(B) When transported in the air, the flying object 11 is launched in the air together with the sled 35 from the other aircraft 37. Since the flying object 11 and the thread 35 are not fixed, the flying object 11 is separated from the thread 35. In the present embodiment, the flying object 11 is released together with the sled 35 in the form of being pulled out by the parapet 38, but may be emitted together with other objects. Further, the flying object 11 may be released alone. Further, other discharge methods such as simple dropping may be used.
(C) After that, when the flying object 11 separated from the thread 35 suddenly descends, the parachute 25 is opened. At this time, the flying body main body 13 is suspended from the umbrella 25 substantially vertically with the tip thereof facing up.
(D) When the flying object 11 descends to a predetermined altitude, the pyrotechnic 29 provided between the flying object body 13 and the suspension cable 27 ignites, the connection between the suspension cable 27 and the flight object body 13 is released, The flying body 13 descends rapidly. At the same time, the rocket propulsion device of the flying body 13 ignites, and the flying body 13 starts to fly along the flight path 39.
(E) At this time, there is a high possibility that there is the parachute 25 on the flight path 39 because the parachute 25 is on the front end side of the flying body main body 13. You can fly while. Therefore, it is not necessary for the flying body main body 13 to make an avoidance movement with respect to the parachute 25, and the propellant can be saved. In addition, since the parachute 25 is suspended substantially vertically with the tip of the flying body main body 13 facing upward, the flying direction of the flying body 11 does not change even if the flying body main body 13 rotates. Therefore, the propellant is not used extra for the flying body 13 to fly in a direction different from the target direction or to return to the original flight path 39.

  Further, when a pyrotechnic product is provided between the pointed member 23 and the flying body 13, the pyrotechnic product may be operated after breaking the parachute 25 to separate the pointed member 23.

FIG. 6 is an external view of the flying object 11 according to the second embodiment of the present invention. 41 is a foundation.
The pointed member 23 of the present embodiment is provided with a base 41 between the fairing 17. By providing the base 41, the pointed member 23 can be easily manufactured and can be easily fixed to the fairing 17.
Other points are the same as in the first embodiment.

FIG. 7 is an external view of the flying object 11 according to the third embodiment of the present invention. 43 is a polygon taper member.
The pointed member 23 of the present embodiment has a pointed tip with respect to the attachment portion to the fairing 17, and the cross-sectional dimension gradually decreases toward the tip.
Further, the pointed member 23 of the present embodiment includes a polygonal taper member 43 having a polygonal cross section perpendicular to the central axis and a cutting edge 21 having a sharp edge 33. The head member 23 is positioned so that the central axis is on the same line. The cutting blade 21 is attached to a side passing through the side surface or the tip of the polygon taper member 43.
Further, the cutting blade 21 of this embodiment is installed from the tip 30 of the pointed member 23, and the edge 33 is a straight line.
However, the present invention is not limited to this, and the cutting edge 21 may be installed from the rear of the tip 30. Further, the edge 33 may draw an arc. Furthermore, the cutting edge 21 may not be a plane but may draw a spiral curve.
Further, the material of the polygon taper member 43 and the cutting edge 21 may be the same or different.
Other points are the same as in the first embodiment.

FIG. 8 is an external view of the flying object 11 according to the fourth embodiment of the present invention. Moreover, FIG. 9 is a BB arrow line view of FIG. 45 is a star-shaped taper member, 46 is a vertex of a star-shaped polygon.
In the pointed member 23 of the present embodiment, the tip 30 is sharp with respect to the attachment portion to the fairing 17, and the cross-sectional dimension of the star polygon gradually decreases toward the tip 30. In addition, the center axis of the flying body 13 and the center axis of the pointed member 23 are positioned on the same line.
Further, the pointed member 23 includes a star-shaped taper member 45 whose cross section perpendicular to the central axis is a star-shaped polygon, and the cutting blade 21 is positioned at the vertex 46 of the star-shaped polygon. That is, the cutting edge 21 may be installed at the vertex 46 of the star polygon, or the edge 33 passing through the vertex 46 of the star polygon formed by two side surfaces is the cutting edge 21 itself. good. FIG. 9 illustrates the latter.
Further, the cutting blade 21 of this embodiment is installed from the tip 30 of the pointed member 23, and the edge 33 is a straight line.
However, the present invention is not limited to this, and the cutting edge 21 may be installed from the rear of the tip 30. Further, the edge 33 may draw an arc. Further, the edge 33 may draw a spiral curve.
Further, the pointed member 23 of the present embodiment is used by being fixed to the fairing 17 as in the first embodiment. Further, a base 41 may be provided between the fairing 17 and the pointed member 23 and fixed to the base 41.
Further, the material of the star-shaped taper member 45 and the cutting blade 21 may be the same or different.

By making the pointed member 23 have the shape of the present embodiment, it is possible to receive pressure evenly on the side surface and to suppress the rotation of the flying body main body 13. Further, since the edge 33 corresponding to the apex 46 of the star-shaped polygon is the sharp cutting edge 21, the thickness of the cutting edge 21 can be ensured and is not easily broken.
Other points are the same as in the first embodiment.

FIG. 10 is an external view of the flying object 11 according to the fifth embodiment of the present invention. Moreover, FIG. 11 is a CC arrow view of FIG.
The pointed member 23 of the present embodiment does not have a taper member and is configured by only a plurality of cutting blades 21. That is, the pointed member 23 is composed of a plurality of flat plates 47 whose inner ends are located on the central axis and extend radially outward, and the cutting blades 21 are located at the outer ends of the flat plates 47.
In this embodiment, the edge 33 corresponding to the outer end in the radial direction is a straight line, but may be an arc. Moreover, the edge 33 may draw a helix. Further, a base 41 may be provided between the pointed member 23 and the fairing 17.
By making the pointed member 23 have the shape of the present embodiment, it is possible to receive pressure evenly on the side surface and to suppress the rotation of the flying body main body 13.
Other points are the same as in the first embodiment.

According to the flying object and the flying method of the flying object of the present invention described above, since the flying object body flies while tearing the parachute, the flying object body does not need to avoid the parachute and there is no loss of propellant. Therefore, a propellant can be saved and the weight of the flying body mounted on another aircraft can be reduced.
Further, by attaching the pointed member to the flying body, the sharp tip can reduce the air resistance and improve the flight performance.

  Although the embodiments of the present invention have been described above, the embodiments of the present invention disclosed above are merely examples, and the scope of the present invention is not limited to these embodiments. . The scope of the present invention is indicated by the description of the scope of claims, and further includes meanings equivalent to the description of the scope of claims and all modifications within the scope.

11 flying body, 13 flying body, 15 body, 17 fairing, 19 nozzle, 21 cutting blade, 23 pointed member, 25 parachute, 27 suspension rope, 29 pyrotechnics, 30 tip of pointed member, 31 circular shape Tapered member, 33 edge, 35 thread, 37 Other aircraft, 39 Flight path, 41 Base, 43 Polygonal taper member, 45 Star taper member, 46 Star polygonal vertex, 47 Flat plate

Claims (8)

A projectile that is transported and fired in the air by another aircraft,
A flying body having a cylindrical body,
A parachute connected to the tip side from the center of gravity of the flying body;
A flying object comprising: a pointed member attached to a tip of the flying object main body and having a sharp cutting edge at an outer edge.   The flying object according to claim 1, wherein the pointed member has a central axis that is collinear with a central axis of the flying object main body. The pointed member has a pointed tip with respect to the attachment part,
The flying object according to claim 2, wherein a cross-sectional dimension gradually decreases toward the tip. The pointed member has a circular tapered member having a circular cross section perpendicular to the central axis,
The flying object according to claim 3, wherein the cutting blade is attached to a side surface of the circular tapered member. The pointed member has a polygonal taper member having a polygonal cross section perpendicular to the central axis;
The flying object according to claim 3, wherein the cutting blade is attached to a side passing through a side surface or a tip of the polygon taper member. The pointed member has a star-shaped taper member whose cross section perpendicular to the central axis is a star-shaped polygon;
The flying object according to claim 3, wherein the cutting edge is located at a tip of a star-shaped polygon. The pointed member is composed of a plurality of flat plates whose inner ends are located on the central axis and extend radially outward.
The flying object according to claim 3, wherein the cutting edge is located at an outer end of the flat plate. A flying body having a cylindrical body,
A parachute connected to the tip side from the center of gravity of the flying body;
A flying method of a flying object comprising a pointed member attached to a tip of the flying object main body and having a sharp cutting edge on an outer edge,
Transported into the air by other aircraft, fired in the air,
After opening the parachute, release the connection,
A flying method of a flying object, characterized in that the parachute flies through the pointed member and flies.