KR102449313B1 - 2-axis single-frequency dynamic damper absorber for damping gatling gun fire shock and gatling gun fire shock damping method - Google Patents

Abstract

The present invention relates to a two-axis single-frequency dynamic vibration absorber for damping Gatling gun fire shock and a Gatling gun fire shock damping method, which are able to reduce the shock and vibration generated when a Gatling gun is fired. According to an embodiment of the present invention, the two-axis single-frequency dynamic vibration absorber for damping Gatling gun fire shock comprises: a Gatling gun having a high-speed fire function; a sensor equipment installed on an upper side of a body unit of the Gatling gun; and a two-axis single-frequency dynamic vibration absorber installed between the body unit of the Gatling gun and the sensor equipment. The two-axis single-frequency dynamic vibration absorber includes: a frame unit having a specific damping target frequency and having a flexible hinge making a linear elastic transformation; and a weight connected to the frame unit through a connection unit. The shock and vibration by the firing direction of the Gatling gun and the shock and vibration by a side surface direction are transferred to the weight through the flexible hinge, and the shock and vibration when the Gatling gun is fired can be reduced.

Description

2-AXIS SINGLE-FREQUENCY DYNAMIC DAMPER ABSORBER FOR DAMPING GATLING GUN FIRE SHOCK AND GATLING GUN FIRE SHOCK DAMPING METHOD

The present invention relates to a two-axis single-frequency dynamic absorption device for damping the impact of a Gatling gun and a method for damping the impact of a Gatling gun. It relates to a frequency dynamic absorption device and a method for damping the impact of a Gatling gun firing.

The content described in this section merely provides background information for the present embodiment and does not constitute the prior art.

A gatling gun is a type of direct-firing weapon that has two or more barrels (barrels) and fires ammunition at high speed through rotation. Since the Gatling gun fires at a high speed of more than 6000~6600 rounds/min (M61 Vulcan) and 4200 rounds/min (GAU/8A) through rotation of multiple barrels, the firing shock is continuously generated and appears as if it vibrates.

A typical system equipped with a gatling gun is the close-range defense weapon system. A close-in weapon system (or Close-In Weapon System, CIWS) is a complex weapon system that is used onboard a ship and includes a detection radar, a tracking radar, a computer or processor with command and control functions, and a gatling gun. to be.

The anti-ship defense weapon system primarily defends aircraft from long-range attacks, and responds to the attacking forces that pass through it with long-range surface-to-air missiles, medium-range artillery guns, and missile point defense systems. And lastly, within 2~3 km, it uses a close defense weapon system to defend with a multi-layer structure that engages aircraft, anti-ship missiles or ships.

In particular, as Korea is surrounded by the sea on three sides, the close defense weapon system mounted on naval ships is a very important factor in protecting allies and their ships from enemy threats.

Recently, Korea is promoting the localization of close-range defense weapon systems. Therefore, there is an urgent need to develop and supplement the detection radar, tracking radar, electro-optical equipment, command and control device, and gatling gun mounted on the close defense weapon system.

As an example, the gatling gun mounted on the close defense weapon system utilizes sensor equipment such as radar and camera to improve accuracy. At this time, the sensor equipment is intended to improve the firing accuracy of the Gatling gun, but as the high-speed firing shock of the Gatling gun is repeatedly transmitted in the form of vibration, the durability and precision performance of the sensor are reduced, and as a result, the firing accuracy of the Gatling gun is reduced. do.

Accordingly, it is an object of the present invention to provide a two-axis single-frequency dynamic absorption device and a method for damping the impact of the Gatling gun firing for damping the impact of the Gatling gun, which can attenuate the impact during high-speed firing of the Gatling gun.

Another object of the present invention is to attenuate the impact during high-speed firing of the gatling gun mounted on the proximity defense weapon system, thereby improving the durability and precision of the sensors mounted on the proximity defense weapon system and used to improve the accuracy of the gatling gun. An object of the present invention is to provide a two-axis single-frequency dynamic absorption device and a method for damping the impact of Gatling gun firing that can improve accuracy.

In order to solve the above technical problems, a two-axis single-frequency dynamic absorption device for damping a gatling gun firing shock according to an embodiment of the present invention includes: a gatling gun having a high-speed firing function; a sensor device installed on the upper part of the gatling gun body; and a two-axis single-frequency dynamic absorption device installed between the body of the gatling gun and the sensor equipment, wherein the two-axis single-frequency dynamic absorption device has a specific damping target frequency and includes a flexible hinge that undergoes linear elastic deformation. frame part; and a weight connected to the frame part through a connection part, wherein the shock and vibration in the firing direction of the gatling gun and the shock and vibration in the lateral direction are transmitted to the weight through the flexible hinge, Vibration can be damped.

In one embodiment, the frame portion may be formed in a rectangular frame shape.

In one embodiment, the frame portion may be composed of four frames each connected to the fixing portion located at the four corners of the rectangular frame shape.

In one embodiment, flexible hinges are configured at both ends of the frame and fixed to the fixing portion, respectively, and the first end portion of the first frame in the lateral direction is fixed to the upper side of the first fixing portion, the first frame The second end is fixed to the lower side of the second fixing part, the first end of the second frame in the lateral direction is fixed to the lower side of the third fixing part, and the second end of the second frame is fixed to the lower side of the fourth fixing part. It can be fixed on the upper side.

In one embodiment, the first end of the first frame in the firing direction is fixed to the upper side of the third fixing part, the second end of the first frame is fixed to the lower side of the first fixing part, and in the firing direction The first end of the second frame may be fixed to the lower side of the fourth fixing part, and the second end of the second frame may be fixed to the upper side of the second fixing part.

In an embodiment, the highest angle at which the frame and the fixing unit are connected may be determined based on the length and height of the frame.

In one embodiment, the flexible hinge may be formed integrally with the frame.

In one embodiment, one side (top surface) of the fixing part may be fixed to the sensor device, and the other side (bottom surface) of the fixing part may be fixed to the body part of the gatling gun.

In one embodiment, the weight may be connected to the four frames through the connecting portion.

In one embodiment, a cable penetration portion may be formed in the center of the weight.

In one embodiment, the two-axis single-frequency dynamic absorption device may be made of a metal material.

In one embodiment, the firing frequency of the gatling gun and the resonance frequency of the two-axis single-frequency dynamic absorption device may coincide.

In one embodiment, the two-axis single-frequency dynamic absorption device for damping the gatling gun firing shock may be applied to a gatling gun mounted on a close-range defense weapon system.

In an embodiment, the rigidity of the flexible hinge may be determined based on a hinge notch width, a hinge radius, and a hinge thickness.

A method for damping gatling gun firing shock according to an embodiment of the present invention for achieving the above object is a 2-axis single-frequency dynamic absorption device using the 2-axis single-frequency dynamic absorption device for damping the gatling gun firing shock according to claim 1 . designing to have a natural frequency that matches the frequency generated when the gatling gun is fired; The firing shock and vibration energy of the gatling gun is transmitted to the weight through the flexible hinge to attenuate most of the energy in the dynamic absorption device and may include the step of transferring the energy to the sensor equipment.

In one embodiment, in the step of transmitting to the sensor equipment, the firing direction shock and vibration of the gatling gun, and the lateral direction shock and vibration may be attenuated in the dynamic absorption device.

In an embodiment, the designing may determine a connection angle of the frame based on the length and height of the frame.

A two-axis single-frequency dynamic absorption device and a method for damping a gatling gun firing shock according to an embodiment of the present invention can attenuate the shock during high-speed firing of the gatling gun. In particular, the present invention attenuates the impact during high-speed firing of a gatling gun mounted on a proximity defense weapon system, thereby improving the durability and precision of sensor equipment mounted on a proximity defense weapon system and used to improve the accuracy of the gatling gun. It is possible to improve the accuracy.

1 is a block diagram of a gatling gun mounted on a close-range defense weapon system according to an embodiment of the present invention.
Figure 2 shows a conceptual diagram of shock and vibration energy transfer of a two-axis single-frequency dynamic absorption device for damping a gatling gun firing shock according to an embodiment of the present invention.
3 is a plan view of a two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.
Figure 4a is a side view of the two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.
Figure 4b is a side view of the emission direction of the two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.
5 is a configuration diagram of a flexible hinge of a two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.
6 shows the motion generated by the shock and vibration of the two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.
7 shows the extent to which the shock and vibration in the firing direction are attenuated by the dynamic absorption device with respect to the time axis according to the embodiment of the present invention.
8 shows the degree of attenuation of the shock and vibration in the firing direction by the dynamic absorption device on the frequency axis according to the embodiment of the present invention.
9 shows the degree of attenuation of the shock and vibration in the lateral direction by the dynamic absorption device with respect to the time axis according to the embodiment of the present invention.
FIG. 10 shows the degree of attenuation of the shock and vibration in the lateral direction by the dynamic absorption device with respect to the frequency axis according to the embodiment of the present invention.
11 is a perspective view of a two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.
12 is a detailed functional flowchart of a two-axis single-frequency dynamic absorption device for damping a Gatling gun shot shock according to an embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "part" and "group", "module" and "part", "unit" and "part", "device" and "system", "terminal" and "node" for components used in the description below. and "digital walkie-talkie" are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves.

In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including ordinal numbers such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. It is apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

The close-range defense weapon system is configured to fire a 20-40mm gatling gun (or machine shell) at a high speed at a short range of about 1000m to 2000m, detects a threat within a short time, and has a high rate of fire of thousands of rounds per minute or more. used as a means

The close defense weapon system includes a search radar that has a long-range monitoring range of about 30 km but has lower precision than a tracking radar, and a tracking radar that measures the coordinates of the target and provides data that can track the movement route and target position.

The close defense weapon system acquires and tracks designated anti-ship and anti-aircraft targets using the radar target information provided through the ship's command and control system, and provides target information for shooting guns (gatling guns) and detection and identification of targets during the day and night. Includes electro-optical equipment that provides image information, etc. to the ship's command and control system. Electro-optical equipment applies EOTS (Electro Optic Tracking System) equipment for high-speed target detection. Alternatively, electro-optical equipment can be implemented using SWIR, LWIR, and TV cameras, and in addition, IR, EO, and external sensors can be interlocked to implement.

As described above, the search radar, tracking radar, and electro-optical equipment applied to the close defense weapon system operate in conjunction with each other. That is, in searching for a threat, securing a target for the discovered threat, real-time tracking control of the secured target, and controlling until the secured target is shot down using a gatling gun, any one device operates independently. Instead, all devices are linked and operated while transmitting and receiving signals with each other.

In addition, the signals detected by the two types of radar and electro-optical equipment are transmitted to the fire control unit so that the operator can check them. That is, the close defense weapon system includes a fire control unit having command and control functions such as a search radar, a tracking radar, an electro-optical device, and a gun (gatling gun).

The fire control unit transmits and receives signals to and from the combat system, which is a higher level system, and may receive operational orders and necessary fire orders from the combat system. These close defense weapon systems are generally used onboard ships. The Fire Control Department is equipped with gun trajectory calculation technology, radar and EOTS operation control technology, gun drive stabilization technology, and HW/SW independent open structure design technology. The effective range through the fire control unit is about 2,000m to 4,000m, and it is equipped with functions such as threat assessment, target designation, firing trajectory calculation, firing command and hit evaluation.

In particular, the present invention attenuates the shock and vibration generated during high-speed firing of the gatling gun, and measures the speed and trajectory of the bullet when the gun trajectory is calculated by the fire control unit to accurately predict the velocity and trajectory of the next fired bullet. Improves gun shooting accuracy.

The proximity defense weapon system protects friendly ships from nearby threats, such as fixed-wing, rotary-wing, anti-ship missiles, small surface ships, and high-speed surface ships. The close-range defense weapon system is used when defense measures composed of long-range and medium-range weapon systems fail to block the enemy's missiles. It is configured to destroy a target in the air by firing it.

The proximity defense weapon system constructed in this way uses various sensor equipment including detection radar, tracking radar, and electro-optical equipment in order to improve the accuracy of the Gatling gun. These sensor devices are intended to improve the firing accuracy of the Gatling Gun. However, as the shock from the high-speed firing of the gatling gun is repeatedly transmitted in the form of vibration, performance degradation such as durability and precision of the sensor equipment is caused. Therefore, as the precision of the sensor equipment mounted to improve the shooting accuracy of the gatling gun is lowered, there is a problem that the effect of mounting the sensor equipment is significantly reduced.

1 is a block diagram of a gatling gun mounted on a close-range defense weapon system according to an embodiment of the present invention. Figure 2 shows a conceptual diagram of shock and vibration energy transfer of a two-axis single-frequency dynamic absorption device for damping a gatling gun firing shock according to an embodiment of the present invention.

In general, various sensor devices 30 including radar and electro-optical devices are configured on the upper portion of the body of the Gatling gun 10 in a close-range defense weapon system.

In the proximity defense weapon system configured in this way, when the gatling gun 10 is fired at high speed, the firing shock is transmitted to the sensor device 30 as it is, thereby reducing the durability and signal precision of the sensor device 30 .

Therefore, in the present invention, it is characterized in that the two-axis single-frequency dynamic absorption device 20 is installed between the body of the gatling gun 10 and the sensor device 30 .

The gatling gun 10 generates shock and vibration in the firing direction during high-speed firing. The generated shock and vibration are transmitted to the two-axis single-frequency dynamic absorption device 20 . The shock and vibration generated by the gatling gun 10 have a specific frequency. Therefore, the two-axis single-frequency dynamic absorption device 20 of the present invention is configured to have the same natural frequency as the specific frequency of the shock and vibration generated by the gatling gun 10 . With this configuration, the shock and vibration of a specific frequency generated by the gatling gun 10 are mostly dissipated inside the two-axis single-frequency dynamic absorption device 20, and the damped shock and vibration are transmitted to the sensor device 30 . In this way, the damped shock and vibration transmitted to the sensor device is a very small amount that does not affect the durability and precision of the sensor device.

3 is a plan view of a two-axis single-frequency dynamic absorption device according to an embodiment of the present invention. Figure 4a is a side view of the two-axis single-frequency dynamic absorption device according to an embodiment of the present invention. Figure 4b is a side view of the emission direction of the two-axis single-frequency dynamic absorption device according to an embodiment of the present invention. 5 is a detailed view of the flexible hinge of the two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.

The illustrated two-axis single-frequency dynamic absorption device 20 is configured in a rectangular frame shape, and fixed parts 210 fixed to the gatling gun 10 and the sensor equipment 30 are respectively fixed to the four corners of the rectangular frame. include One side (bottom surface) of the fixing part 210 is fixed to the body of the gatling gun 10 , and the other side (top surface) is fixed to the sensor device 30 .

Four frames 230 are connected between the fixing parts 210 configured at the four corners of the two-axis single-frequency dynamic absorption device 20 . That is, one frame is connected between the two fixing parts, respectively. A flexible hinge 220 is positioned at a portion where the frame 230 and the fixing part 210 are connected.

Therefore, the two-axis single-frequency dynamic absorption device 20 is composed of a frame portion in which four frames 230 are connected to the fixing portion 210 through the flexible hinge 220 . The frame part consists of four frames 230 connected to the fixing parts 210 positioned at the four corners of the rectangular frame shape, respectively.

The flexible hinge 220 is the portion in which the greatest deformation occurs when shock and vibration are transmitted. The stiffness (k ₁ ) of the flexible hinge 220 is the Young's Modulus (E, or elastic modulus) of the material and the hinge notch width (t; 221), the hinge radius (r; 222), the hinge thickness (b; 223). is calculated by [Equation 1].

[Equation 1]

And the angle of the frame 230 exists to minimize the effect of rotational vibration due to an error occurring during processing. Therefore, the maximum angle is determined according to the length and height of the two-axis single-frequency dynamic absorption device.

A flexible hinge 220 is configured at a portion where the frame 230 and the fixing unit 210 are connected. As shown in FIG. 3, flexible hinges are configured at both ends of the frame, and the flexible hinges are fixed to the fixing part to fix the frame to the fixing part.

Looking at the connection relationship between the frame, the flexible hinge, and the fixing part, as shown in FIG. 4A , the first end 232 of the first frame 231 in the lateral direction is the upper side of the first fixing part 211 . is fixed to, and the second end portion 233 of the first frame 231 is fixed to the lower side of the second fixing portion (212). The first end 235 of the second frame 234 in the lateral direction is fixed to the lower side of the third fixing portion 213, and the second end 236 of the second frame 234 has a fourth height. It is fixed on the upper side of the government 214 .

Similarly, as shown in FIG. 4b, the first frame 237 and the second frame 238 in the firing direction are also connected at an angle to the four fixing parts, and the frame is connected to the fixing part 210 in this way. The highest angle is determined based on the length and height of the frame.

That is, the first end portion 241 of the first frame 237 in the firing direction is fixed to the upper side of the third fixing portion 213 , and the second end portion 244 of the first frame 237 is the second 1 is fixed to the lower side of the fixing part 211 . The first end 242 of the second frame 238 in the firing direction is fixed to the lower side of the fourth fixing portion 214, and the second end 243 of the second frame 238 is the second high It is fixed to the upper side of the government 212 .

In the embodiment of the present invention, the frame connection configuration in the firing direction was configured to be the same as that in the lateral direction. As shown in FIG. 11 to be described later, in the present invention, the two-axis single-frequency dynamic absorption device 20 is implemented in a square shape, and from the first frame to the fourth frame, one side is connected to the upper end of the fixed part and the other side is The configuration of connecting to the lower end of the other fixing part is made continuously to constitute a square frame part.

In this way, the reason why the angle is combined with the connection configuration of the frame is because, when manufacturing a two-axis single-frequency dynamic absorption device, rotational vibration may occur without the weight moving in the intended direction due to a processing error. Therefore, the angular connection configuration of the frame helps to reduce the rotational vibration that occurs based on the vertical axis in the two-axis single-frequency dynamic absorption device when the gatling gun is fired, so that the weight of the dynamic absorption device can move in the direction intended in the design.

The frame 230 and the flexible hinge 220 may be integrally configured. Alternatively, the frame 230 and the flexible hinge 220 are made of separate components, and it is also possible to connect them using a fixing means such as a screw.

The weight 250 is connected to each of the four frames 230 through two connecting portions 240 . That is, the weight 250 is positioned at the center position of the frame 230 implemented in a rectangular shape, and four sides of the weight 250 are connected to the frame 230 facing each other through the connecting part 240 . A cable through portion 260 is formed at the center position of the weight 250 , and the cable of the sensor device 30 can pass through the cable through portion 260 .

In order to measure the speed and trajectory of the bullet fired from the gatling gun 10, an electrical signal transmission between the gatling gun 10 and the sensor device 30 and other electrical signals to the gatling gun 10 Connection of a signal cable This is necessary, and the cable penetration part 260 may be used for this.

The two-axis single-frequency dynamic absorption device 20 configured in this way has a rigidity (k ₁ ) of the two-axis single-frequency dynamic absorption device 20 in a state in which the frame 230 and the design elements of the connection part 240 are fixed, The mass (m ₁ ) and the natural frequency (ω ₁ ) have the same relationship with the stiffness (k ₂ ), the mass (m ₂ ), and the natural frequency (ω ₂ ) of the sensor device 30 as in [Equation 2]. Therefore, based on [Equation 2], it is possible to design the natural frequency of the 2 chu single frequency dynamic absorption device 20 .

[Equation 2]

Based on [Equation 2], if the natural frequency of the two-axis single-frequency dynamic absorption device 20 is designed to match a specific frequency generated by the firing shock and vibration of the Gatling gun 10, the two-axis single-frequency dynamic absorption The device 20 makes it possible to damp the firing shock and vibration generated during high-speed firing from the gatling gun 10 .

Therefore, when the shock and vibration generated when the gatling gun 10 is fired is transmitted to the two-axis single frequency dynamic absorption device 20 , most of the shock and vibration energy is transmitted to the weight 250 through the flexible hinge 220 . and the weight 250 is dissipated while vibrating. And the damped shock and vibration are transmitted to the sensor equipment 30 mounted on the upper part of the two-axis single-frequency dynamic absorption device 20 .

In general, the gatling gun 10 is fired at a specific frequency, and the firing shock is generated in the form of vibration. The firing shock of the gatling gun 10 is generated when the ball strikes the ammunition inside the barrel, and the main direction of the shock and vibration is the same as the firing direction. Vibrations generated in the main direction of firing are propagated as shocks and vibrations in other directions by the structure on which the gatling gun is mounted. Therefore, the shock and vibration in the main direction for the shock and vibration generated during firing of the gatling gun must be damped. In addition, when the gatling gun is fired at a high speed, the lateral impact and vibration that have an important influence on the detection performance of the sensor device 30 must also be attenuated.

The proximity defense weapon system is equipped with a sensor device 30 to improve the firing accuracy of the gatling gun, but it was difficult to see the normal effect due to the firing shock of the gatling gun. Therefore, in the present invention, as shown in FIG. 1 , a two-axis single-frequency dynamic absorption device 20 is configured between the body of the gatling gun 10 and the sensor device 30 .

The two-axis single-frequency dynamic absorption device 20 receives the firing shock and vibration generated from the barrel of the gatling gun 10 , and the shock and vibration are attenuated using the flexible hinge 220 . The two-axis single-frequency dynamic absorption device 20 to which the flexible hinge 220 is applied uses elastic deformation of a metal material having a linear deformation section (for example, steel (S45C, S50C) or aluminum alloy), and a resonance of a specific frequency designed to have a frequency.

That is, as shown in FIG. 12 , according to the embodiment of the present invention, the firing shock and vibration of a specific frequency generated by the gatling gun is transmitted to the fixing unit 210 of the two-axis single-frequency dynamic absorption device 20 . do. Shock and vibration energy is transferred from the fixed part 210 to the flexible hinge 220, and through the configuration of the frame 240, the connection part 240 and the weight 250 due to the occurrence of the behavior of the flexible hinge 220, most Shock and vibration energy is dissipated. In this way, when the gatling gun is fired, shock and vibration are transmitted to the sensor equipment, but most are attenuated so that the durability and precision of the sensor equipment are not affected.

That is, as shown in FIG. 6 , the two-axis single frequency dynamic absorption device 20 is made in the shape of a square frame, and through the flexible hinge 220, the impact and vibration in the firing direction and the side direction in the firing direction are weighted. It is transferred to the weight 250 .

In the present invention, the firing frequency of the gatling gun 10 and the resonant frequency of the two-axis single-frequency dynamic absorption device 20 are designed to match, and therefore the firing frequency generated during high-speed firing of the gatling gun 10 is a single-axis single frequency vibration. The shock and vibration energy is transmitted and dissipated to the weight 250 connected to the flexible hinge 220 of the frequency dynamic absorption device 20 .

And the sensor device 30 mounted on the upper part of the two-axis single-frequency dynamic absorption device 20 receives the shock and vibration generated during high-speed firing of the gatling gun 10, but the two-axis single-frequency dynamic absorption device 20 ), it becomes possible to sufficiently maintain the durability and precision of the sensor. In addition, it becomes possible to improve the shooting accuracy of the gatling gun 10 by securing the precision of the sensor equipment.

6 shows the motion generated by the shock and vibration of the two-axis single-frequency dynamic absorption device according to an embodiment of the present invention.

The two-axis single-frequency dynamic absorption device 20 generates a movement of the weight 250 located at the center of the two-axis single-frequency dynamic absorption device 20 by shock and vibration transmitted through the flexible hinge 220 . As shown in FIG. 6 , the biaxial single frequency dynamic absorption device 20 has the same shape as the mode in the firing direction and the mode in the lateral direction. That is, the shock and vibration by the firing direction and the shock and vibration by the lateral direction are simultaneously transmitted to the weight 250 so that the shock and vibration are dissipated with respect to two axes of a single frequency with the same mechanism.

7 shows the degree to which the shock and vibration in the firing direction are attenuated by the two-axis single-frequency dynamic absorption device 20 with respect to the time axis according to the embodiment of the present invention. 8 shows the degree to which the shock and vibration in the firing direction are attenuated by the two-axis single-frequency dynamic absorption device 20 with respect to the frequency axis according to the embodiment of the present invention. In an embodiment of the present invention, the two-axis single-frequency dynamic absorption device 20 attenuates more than 90% of the launch shock and vibration, and it can be seen that the attenuation target frequency (eg, 70 Hz) is significantly attenuated.

9 shows the degree of attenuation of the shock and vibration in the lateral direction by the two-axis single-frequency dynamic absorption device 20 with respect to the time axis according to the embodiment of the present invention. 10 shows the degree of attenuation of the lateral impact and vibration by the two-axis single-frequency dynamic absorption device 20 with respect to the frequency axis according to the embodiment of the present invention. According to an embodiment of the present invention, it can be seen that the two-axis single-frequency dynamic absorption device 20 attenuates more than 90% of the launch shock and vibration, and the attenuation target frequency (eg, 70 Hz) is significantly attenuated.

As described above, the present invention can be applied to reduce the firing shock and vibration of the gatling gun type. As an example, the present invention can be applied to a Gatling gun (GAU/8A) mounted and used in a close-range defense weapon system. In addition, it can be applied to a system with a rotor, such as helicopters and unmanned aerial vehicles, or a device that generates vibrations and shocks of a certain frequency, such as disk drives, to reduce shock and vibration.

The above detailed description should not be construed as restrictive in all respects and should be considered as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

10: Gatling gun, 20: two-axis single-frequency dynamic absorption device, 30: sensor equipment, 210: fixed part, 220: flexible hinge, 230: frame, 240: connection, 250; Weight, 260: cable penetration

Claims (17)

Gatling gun with high-speed firing capability;
a sensor device installed on the upper part of the gatling gun body; and
It includes a two-axis single-frequency dynamic absorption device installed between the body of the gatling gun and the sensor equipment,
The two-axis single-frequency dynamic absorption device includes: a frame portion including a flexible hinge having a specific damping target frequency and a linear elastic deformation; and
It includes a weight connected to the frame part through a connection part,
The shock and vibration by the firing direction of the gatling gun and the shock and vibration by the lateral direction are transmitted to the weight through a flexible hinge, so that the shock and vibration at the time of firing the gatling gun are attenuated. dynamic absorption device. The method according to claim 1,
The frame part is a two-axis single-frequency dynamic absorption device for damping the impact of a gatling gun shot in the shape of a square frame. 3. The method according to claim 2,
The frame part is a two-axis single-frequency dynamic absorption device for gatling gun-fired shock damping, which is composed of four frames connected to fixed parts located at the four corners of the rectangular frame shape, respectively. 4. The method of claim 3,
Flexible hinges are configured at both ends of the frame and are fixed to the fixed part, respectively,
The first end of the first frame in the lateral direction is fixed to the upper side of the first fixing part, and the second end of the first frame is fixed to the lower side of the second fixing part,
The first end of the second frame in the lateral direction is fixed to the lower side of the third fixing part, and the second end of the second frame is fixed to the upper side of the fourth fixing part. Frequency Dynamic Absorption Device. 5. The method according to claim 4,
The first end of the first frame in the firing direction is fixed to the upper side of the third fixing part, the second end of the first frame is fixed to the lower side of the first fixing part,
The first end of the second frame in the firing direction is fixed to the lower side of the fourth fixing part, and the second end of the second frame is fixed to the upper side of the second fixing part. Frequency Dynamic Absorption Device. 6. The method of claim 5,
The maximum angle between the frame and the fixed part is determined based on the length and height of the frame. A 2-axis single-frequency dynamic absorption device for gatling gun-fired shock damping. 7. The method of claim 6,
The flexible hinge is a two-axis single-frequency dynamic absorption device for damping the impact of the Gatling gun that is formed integrally with the frame. 8. The method of claim 7,
One side (upper surface) of the fixing part is fixed to the sensor equipment, and the other side (bottom) of the fixing part is fixed to the body of the gatling gun. 9. The method of claim 8,
A two-axis single-frequency dynamic damping device for gatling gun-fired shock damping, in which a weight is connected to four frames through connections. 10. The method of claim 9,
A two-axis single-frequency dynamic absorption device for damping the impact of a Gatling gun with a cable penetration formed at the center of the weight. 11. The method of claim 10,
The two-axis single-frequency dynamic damping device is a two-axis single-frequency dynamic damping device for damping the impact of a gatling gun shot made of metal. 12. The method of claim 11,
The firing frequency of the Gatling gun and the resonant frequency of the 2-axis single-frequency dynamic absorption device are identical to the 2-axis single-frequency dynamic absorption device for gatling gun firing shock attenuation. 13. The method of claim 12,
The two-axis single-frequency dynamic absorption device for gatling gun fire shock attenuation is a two-axis single-frequency dynamic absorption device for gatling gun firing shock attenuation applied to the gatling gun mounted on the close defense weapon system. 14. The method of claim 13,
The rigidity of the flexible hinge is determined based on the hinge notch width, hinge radius, and hinge thickness. A two-axis single-frequency dynamic damping device for gatling gun-fired shock damping. Using the two-axis single-frequency dynamic absorption device for damping the gatling gun firing shock according to claim 1,
designing the two-axis single-frequency dynamic absorption device to have a natural frequency that matches the frequency generated when the gatling gun is fired;
A method for damping a gatling gun firing shock, comprising the step of transmitting the firing shock and vibration energy of the gatling gun to a weight through a flexible hinge to attenuate some of the energy in a two-axis single-frequency dynamic absorption device and transferring the energy to a sensor device. 16. The method of claim 15,
The step of transmitting to the sensor equipment is a Gatling gun firing shock damping method in which the firing direction shock and vibration of the gatling gun and the lateral direction shock and vibration are attenuated by a two-axis single-frequency dynamic absorption device. 17. The method of claim 16,
The design stage is a Gatling Gun-fired shock damping method that determines the frame's connection angle based on the frame's length and height.

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