Missile water entry test launcher

Abstract

The application relates to the technical field of missile water-entry experiment, and provides a missile water-entry experiment launching device, which comprises a launching mechanism, a fixing plate, a water container, a wave-making mechanism and a missile model. The launching mechanism comprises a steering engine, a swing rod, a containing device, a first electromagnetic control assembly and a second electromagnetic control assembly. The water container is attached to one side of the fixing plate. The lower end of the wave-making mechanism is arranged in the water container to separate the water container into two parts with water level difference. The upper end of the wave-making mechanism is connected with the steering engine of the launching mechanism. The swing of the swing rod is controlled through the steering engine. Under the joint action of the first electromagnetic control assembly and the second electromagnetic control assembly, the missile model loaded in the containing device of the launching mechanism is launched into the water in the water container, and wave-making is simultaneously carried out by withdrawing the lower end of the wave-making mechanism from the water container. The missile water-entry experiment launching device has the characteristics of simple structure, strong controllability and high reliability of simulation results.

Description

Technical Field

[0001] This invention relates to the field of missile water entry test technology, and in particular to a missile water entry test launch device. Background Technology

[0002] In the military field, various missiles and vehicles come into direct contact with seawater upon entering the water. The entire process of a missile entering water generally refers to the time from the nose touching the water to complete wetting. During this process, the missile undergoes four stages: impact, flow formation, cavitation propagation, and complete wetting. Simultaneously, strong interactions occur between air, water, and the missile, accompanied by a series of complex physical phenomena. The missile entry process is a transient, rapidly changing, and complex mechanical process, making theoretical analysis of certain entry phenomena quite difficult. Therefore, missile water entry experiments are an indispensable part of water entry research.

[0003] Missile entry into water typically occurs at sea, where the surface is often affected by wind, resulting in rough seas and waves. Therefore, when conducting missile entry tests in the laboratory, the influence of actual sea waves must be considered. The wave generation process is essential to approximate real sea conditions, reduce experimental errors, and increase the reliability and realism of the experimental setup. However, current missile entry tests often neglect this actual sea surface factor, leading to inaccurate experimental results.

[0004] Therefore, how to provide a more accurate missile water entry test device with wave-generating capabilities without increasing costs and operational complexity has become an urgent technical problem to be solved. Summary of the Invention

[0005] In view of this, in order to overcome the shortcomings of the prior art, the present invention aims to provide a missile water entry test launch device.

[0006] This invention provides a missile water-entry test launch device, which includes a launch mechanism, a fixed plate, a water container, a wave-generating mechanism, and a missile model. The launch mechanism includes a servo motor, a swing arm, a container, a first electromagnetic control component, and a second electromagnetic control component. The upper end of the swing arm is connected to the servo motor fixed on the fixed plate, and the lower end of the swing arm is fixedly connected to the container. The axis of the container is perpendicular to the axis of the swing arm. The first electromagnetic control component is located at the connection between the swing arm and the container and extends to the inside of the container. The second electromagnetic control component is located inside the closed end of the container. The water container is fitted against one side of the fixed plate. The lower end of the wave-generating mechanism is located inside the water container, separating the water container into two parts with a water level difference. The upper end of the wave-generating mechanism is connected to the servo motor of the launch mechanism. The servo motor controls the swing of the swing arm. Under the combined action of the first and second electromagnetic control components, the missile model loaded in the container of the launch mechanism is launched into the water of the water container, and waves are generated simultaneously by removing the lower end of the wave-generating mechanism from the water container.

[0007] Preferably, in the missile water entry test launch device of the present invention, an embedded cavity is provided at the bottom of the lower end of the swing rod, and a trigger cavity communicating with the embedded cavity is provided on one side of the lower end of the swing rod.

[0008] Preferably, in the missile water entry test launch device of the present invention, the inner side of the container is provided with a loading cavity, a movable cavity and a fixed cavity in sequence from the open end to the closed end, and the upper side wall of the container is provided with an embedding hole that communicates with the loading cavity and the triggering cavity of the swing rod.

[0009] Preferably, in the missile water entry test launch device of the present invention, the first electromagnetic control component includes a trigger electromagnet and a limiting trigger plate. The trigger electromagnet is disposed in the embedded cavity and extends into the loading cavity through the embedded hole. The limiting trigger plate is fixed in the water container. A trigger protrusion is provided in the middle part of the limiting trigger plate. When the swing rod swings to the launch position, the limiting trigger plate limits the swing rod. The trigger protrusion on the limiting trigger plate triggers the trigger switch on the trigger electromagnet that passes through the trigger cavity of the swing rod.

[0010] Preferably, in the missile water entry test launch device of the present invention, the second electromagnetic control component includes a movable electromagnet and a fixed electromagnet, the movable electromagnet being disposed in the movable cavity of the container, and the fixed electromagnet being disposed in the fixed cavity of the container.

[0011] Preferably, in the missile water entry test launch device of the present invention, the water container is a cuboid with an open top, the water container is made of transparent glass material, and a water container support is provided at the bottom of the water container.

[0012] Preferably, in the missile water entry test launch device of the present invention, the wave-generating mechanism includes a water baffle, a traction rope, and a long rod. The water baffle is vertically arranged in the cavity of the water container, dividing the water container into a left cavity and a right cavity. One end of the long rod is connected to the servo motor, and the long rod is collinear with the swing rod. One end of the traction rope is connected to the upper end of the water baffle, and the other end of the traction rope is connected to the long rod. The traction rope passes over the upper side of the first fixed pulley and the lower side of the second fixed pulley. The first fixed pulley and the second fixed pulley are fixed on the fixed plate.

[0013] Preferably, in the missile water entry test launch device of the present invention, when the baffle plate is completely located in the water container cavity, the length of the left cavity is one-quarter of the total length of the water container, and the water level in the left cavity is higher than the water level in the right cavity.

[0014] Preferably, in the missile water entry test launch device of the present invention, the difference between the distance between the end of the long rod connected to the traction rope at the highest point and the second fixed pulley and the distance between the end of the long rod connected to the traction rope at the lowest point and the second fixed pulley is not less than the height of the water baffle.

[0015] Preferably, in the missile water entry test launch device of the present invention, a first water level measuring line and a second water level measuring line are provided on the fixed plate. The first water level measuring line is aligned with the side of one side of the water container, and the second water level measuring line is aligned with the side of the other side of the water container.

[0016] The missile water entry test launch device of the present invention uses a launch mechanism to load a missile model, which swings to simulate the missile model's flight state before water entry. A wave-generating mechanism linked to the launch mechanism generates waves in the water container before the missile model enters the water, simulating actual sea conditions, reducing experimental errors, and increasing the realism of the experiment. The missile water entry test launch device of this invention features a simple structure, strong controllability, and high reliability of simulation results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a missile water entry test launch device according to an exemplary embodiment of the present invention;

[0019] Figure 2 This is a partial structural diagram of the launching mechanism in a missile water entry test launching device according to an exemplary embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a missile launch mechanism loading a missile model in a missile water entry test launch device according to an exemplary embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a missile launcher for a water-entry test according to an exemplary embodiment of the present invention, launching a missile model.

[0022] Figure 5 This is a schematic diagram of the initial position state of a missile water entry test launch device according to an exemplary embodiment of the present invention;

[0023] Figure 6 An example diagram showing the initial position of a missile water entry test launch device according to an exemplary embodiment of the present invention;

[0024] Figure 7 An example diagram showing the final position of a missile water entry test launch device according to an exemplary embodiment of the present invention;

[0025] In the diagram, 1-launching mechanism, 2-fixed plate, 3-water container, 4-wave-generating mechanism, 5-missile model, 11-servo motor, 12-swing rod, 13-receptor, 14-first electromagnetic control component, 15-second electromagnetic control component, 121-embedded cavity, 122-trigger cavity, 131-loading cavity, 132-movable cavity, 133-fixed cavity, 134-embedded hole, 141-trigger electromagnet, 142-limiting trigger plate, 143-trigger protrusion, 144-trigger switch, 151-movable electromagnet, 152-fixed electromagnet, 21-first water level measuring line, 22-second water level measuring line, 31-water container support, 32-left cavity, 33-right cavity, 41-water baffle, 42-traction rope, 43-long rod, 44-first fixed pulley, 45-second fixed pulley. Detailed Implementation

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the following embodiments and features can be combined with each other; and, based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0028] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0029] Figure 1 This is a schematic diagram of the structure of a missile water entry test launch device according to an exemplary embodiment of the present invention, as shown below. Figure 1 As shown, the missile water entry test launch device of this embodiment includes a launch mechanism 1, a fixing plate 2, a water container 3, a wave-generating mechanism 4, and a missile model 5.

[0030] Figure 2 This is a partial structural diagram of the launching mechanism in a missile water entry test launching device according to an exemplary embodiment of the present invention. Figure 3 This is a schematic diagram of a missile model mounted on a launch mechanism in a missile water entry test launch device according to an exemplary embodiment of the present invention. Figure 1 , Figure 2 and Figure 3 As shown, the launching mechanism 1 includes a servo motor 11, a swing arm 12, a housing 13, a first electromagnetic control component 14, and a second electromagnetic control component 15.

[0031] In this embodiment, the servo motor 11 is controlled by a control system (not shown). The control system causes the output shaft of the servo motor 11 to generate torques in different directions. The upper end of the swing arm 12 is connected to the servo motor 11, which is fixed on the fixed plate 2. In practical applications, a bearing can be installed at the upper end of the swing arm 12 in this embodiment. The bearing is connected to the output shaft of the servo motor 11 via a key, and the swing arm 12 is driven to swing by the torque output by the servo motor 11. The lower end of the swing arm 12 is fixedly connected to the housing 13. The axial direction of the housing 13 is perpendicular to the axial direction of the swing arm 12. The first electromagnetic control component 14 is located at the connection between the swing arm 12 and the housing 13 and extends to the inside of the housing 13. The second electromagnetic control component 15 is located inside the closed end of the housing 13.

[0032] As an optional example, the lower end of the swing rod 12 is provided with an embedded cavity 121, and a trigger cavity 122 communicating with the embedded cavity 121 is provided on one side of the lower end of the swing rod 12. The container 13 is a cylindrical shape with one open end. The inner side of the container 13 is provided with a loading cavity 131, a movable cavity 132 and a fixed cavity 133 communicating from the open end to the closed end. The upper side wall of the container 13 is provided with an embedded hole 134 communicating with the loading cavity 131 and the trigger cavity 122 of the swing rod 12. The missile model 5 is coaxially loaded in the loading cavity 131 of the container 13, with the head of the missile model 5 facing the open end of the container 13. In actual application, the missile model 5 is made of metal.

[0033] As an optional example, the first electromagnetic control assembly 14 includes a trigger electromagnet 141 and a limiting trigger plate 142. The trigger electromagnet 141 is disposed in the embedded cavity 121 and extends into the loading cavity 131 through the embedded hole 134. The magnetic force of the trigger electromagnet 141 can attract the missile model 5, so that the missile model 5 is in a stationary state. In practical applications, the trigger electromagnet 141 of this embodiment is equipped with a trigger switch 144, and the trigger switch 144 is exposed to the outside through the trigger cavity 122 of the swing rod 12. The limiting trigger plate 142 is fixed in the water container 3. A trigger protrusion 143 is provided in the middle part of the limiting trigger plate 142. When the swing rod 12 swings to the launch position, the limiting trigger plate 142 limits the swing rod 12, and the trigger protrusion 143 on the limiting trigger plate 142 triggers the trigger switch 144 on the trigger electromagnet 141 that passes through the trigger cavity 122 of the swing rod 12.

[0034] As an optional example, the second electromagnetic control assembly 15 includes a movable electromagnet 151 and a fixed electromagnet 152. The movable electromagnet 151 is disposed within the movable cavity 132 of the container 13, and the fixed electromagnet 152 is disposed within the fixed cavity 133 of the container 13. In practical applications, the movable electromagnet 151 and the fixed electromagnet 152 are connected to opposite polarities of the power supply, and are in a repulsive state. That is, the movable electromagnet 151 provides an axial thrust to the missile model 5. By setting the current flow of the trigger electromagnet 141 and the movable electromagnet 151, the missile model 5 is kept stationary under the combined action of attraction and thrust. When the trigger switch 144 of the trigger electromagnet 141 is triggered, the magnetic force of the trigger electromagnet 141 is released, and the missile model 5 is launched from the container 13 under the thrust of the movable electromagnet 151. Figure 4 This is a schematic diagram of a missile launcher for a water-entry test according to an exemplary embodiment of the present invention, showing the launch of a missile model.

[0035] like Figure 1As shown, in the missile water-entry test launch device of this embodiment, the water container 3 is a cuboid with an open top. The water container 3 is made of transparent glass material, and a water container support 31 is provided at the bottom of the water container 3. The water container 3 is fitted to one side of the fixing plate 2. A first water level measuring line 21 and a second water level measuring line 22 are provided on the fixing plate 2. The first water level measuring line 21 is aligned with one side of the water container 3, and the second water level measuring line 22 is aligned with the other side of the water container 3.

[0036] like Figure 1 As shown, in the missile water entry test launch device of this embodiment, the lower end of the wave-generating mechanism 4 is set inside the water container 3, separating the water container 13 into two parts with a water level difference. The upper end of the wave-generating mechanism 4 is connected to the servo motor 11 of the launch mechanism 1. Specifically, the wave-generating mechanism 4 includes a baffle plate 41, a traction rope 42, and a long rod 43. The baffle plate 41 is vertically set inside the cavity of the water container 3, dividing the water container 3 into a left cavity 32 and a right cavity 33. One end of the long rod 43 is connected to the servo motor 11. The long rod 43 is collinear with the swing rod 12. One end of the traction rope 42 is connected to the upper end of the baffle plate 41, and the other end of the traction rope 42 is connected to the long rod 43. The traction rope 42 passes over the upper side of the first fixed pulley 44 and the lower side of the second fixed pulley 45. The first fixed pulley 44 and the second fixed pulley 45 are fixed on the fixed plate 2. In the missile water-entry test launch device of the present invention, when the baffle plate 41 is completely located inside the water container 3, the length of the left cavity 32 is one-quarter of the total length of the water container 3, and the water level in the left cavity 32 is higher than the water level in the right cavity 33. It should be noted that those skilled in the art, when implementing the missile water-entry test launch device of the present invention, can set the position of the baffle plate 41 inside the water container 3 according to the needs of the actual application scenario, that is, set the length of the left cavity 32 to other values. They can also set the water levels of the left cavity 32 and the right cavity 33 according to the needs of the actual application scenario, for example, setting the water level of the left cavity 32 to 85%-98% of the total height of the water container 3, and setting the water level of the right cavity 33 to 55%-75% of the total height of the water container 3. The water level of the left cavity 32 can be measured by the first water level measuring line 21, and the water level of the right cavity 33 can be measured by the second water level measuring line 22. In practical applications, the watertightness of the baffle plate 41 can also be improved by setting water-blocking strips on both sides of the baffle plate 41 in this embodiment.

[0037] According to an embodiment of the missile water-entry test launch device, the oscillation of the swing rod 12 is controlled by the servo motor 11. Under the combined action of the first electromagnetic control component 14 and the second electromagnetic control component 15, the missile model 5 loaded in the container 13 of the launch mechanism 1 is launched into the water of the water container 3, and waves are generated simultaneously by removing the lower end of the wave-generating mechanism 4 from the water container 3. It should be noted that in this embodiment of the missile water-entry test launch device, the difference between the distance between the end of the long rod 43 connected to the traction rope 42 at its highest point and the second fixed pulley 45, and the distance between the end of the long rod 43 connected to the traction rope 42 at its lowest point and the second fixed pulley 45, is not less than the height of the water baffle 41.

[0038] The following describes the application principle of the missile water entry test launch device according to a specific application scenario:

[0039] Before the missile water entry test launch device was tested, the control system controlled the servo motor 11 to swing the swing arm 12 to the starting position to simulate the state before missile launch. Figure 5 This is a schematic diagram of the initial position state of a missile water entry test launching device according to an exemplary embodiment of the present invention, as shown below. Figure 5 As shown, at this time, the baffle plate 41 is completely inside the water container 3, dividing the water container 3 into two parts with different water levels, and the traction rope 42 is just taut.

[0040] When the missile enters the water test, the servo motor 11 is activated by the control system, and the swing arm 12 is rotated clockwise by the torque transient. At this time, the missile model 5 continues to remain relatively stationary with respect to the container 13 under the attraction of the trigger electromagnet 141.

[0041] like Figure 1 As shown, when the swing rod 12 contacts the limiting trigger plate 142 and stops swinging, the trigger protrusion 143 on the limiting trigger plate 142 triggers the trigger switch 144 on the trigger electromagnet 141 that passes through the trigger cavity 122 of the swing rod 12. The trigger electromagnet 141 releases its magnetic attraction to the missile model 5. At this time, the fixed electromagnet 152 and the movable electromagnet 151 repel each other, and the movable electromagnet 151 provides a thrust to the missile model 5. Under the combined action of its own inertia and the tail thrust, the missile model 5 enters the water. During the experimental simulation using the missile water entry test launch device of this embodiment, the entire process is recorded by a recording camera for later theoretical analysis.

[0042] Figure 6 An example diagram showing the initial position of a missile water-entry test launch device according to an exemplary embodiment of the present invention, as shown below. Figure 6As shown, in the initial position of the missile water entry test launch device, the position of the second fixed pulley 45 is defined as point O, and the connection point of the long rod 43 and the traction rope 42 is defined as point A. At this time, the water baffle 41 with a height of L is completely in the water container 3. Figure 7 An example diagram showing the final position of a missile water-entry test launch device according to an exemplary embodiment of the present invention, as shown below. Figure 7 As shown, when the swing rod 12 is limited by the limiting trigger plate 142, the connection point between the long rod 43 and the traction rope 42 is defined as point B. In order to ensure that the water baffle 41 can be completely detached from the water container 3 before the missile model 5 enters the water, this embodiment adjusts the positions of the first fixed pulley 44 and the second fixed pulley 45 and the torque of the servo motor 11 to ensure that the difference between the distance between OB and the distance between OA is not less than the height L of the water baffle 41 when moving from the initial position to the final position, thereby ensuring that the water baffle is completely detached from the experimental water tank before the missile model enters the water.

[0043] According to an embodiment of the present invention, a missile water-entry experimental launch device is provided. A water container 3 is set up and filled with water to simulate the actual sea surface where the missile model 5 enters the water. Water baffles 41 are used to create a water level difference, with the water level on the left side of the baffles 41 being higher than that on the right side. One end of the baffles 41 is connected to a traction rope 42. The missile model 5 is mounted at the bottom of a swing rod 12, and a long rod 43 is fixed at the swing center of the swing rod 12 to connect the other end of the traction rope 42. The missile model 5 is loaded onto the launch mechanism 1 and oscillates to simulate the flight state of the missile model 5 before entering the water. A wave-generating mechanism 4, linked to the launch mechanism 1, generates waves in the water container 3 before the missile model 5 enters the water, simulating actual sea conditions, reducing experimental errors, and increasing the realism of the experiment. The missile water-entry experimental launch device of this embodiment of the present invention features a simple structure, strong controllability, and high reliability of simulation results.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A missile water entry test launch device, characterized in that, The device includes a launching mechanism, a fixed plate, a water container, a wave-generating mechanism, and a missile model. The launching mechanism includes a servo motor, a swing arm, a container, a first electromagnetic control assembly, and a second electromagnetic control assembly. The upper end of the swing arm is connected to the servo motor fixed to the fixed plate, and the lower end of the swing arm is fixedly connected to the container. The axis of the container is perpendicular to the axis of the swing arm. The first electromagnetic control assembly is located at the connection between the swing arm and the container and extends to the inside of the container. The second electromagnetic control assembly is located inside the closed end of the container. The water container is fitted against one side of the fixed plate. The lower end of the wave-generating mechanism is located inside the water container, separating the water container into two parts with a water level difference. The upper end of the wave-generating mechanism is connected to the servo motor of the launching mechanism. Next, the oscillation of the swing arm is controlled by the servo motor. Under the combined action of the first and second electromagnetic control components, the missile model loaded in the container of the launch mechanism is launched into the water of the water container. At the same time, waves are generated by removing the lower end of the wave-making mechanism from the water container. The wave-making mechanism includes a baffle plate, a traction rope, and a long rod. The baffle plate is vertically set in the cavity of the water container, dividing the water container into a left cavity and a right cavity. One end of the long rod is connected to the servo motor. The long rod is collinear with the swing arm. One end of the traction rope is connected to the upper end of the baffle plate, and the other end of the traction rope is connected to the long rod. The traction rope passes over the upper side of the first fixed pulley and the lower side of the second fixed pulley. The first and second fixed pulleys are fixed on the fixed plate.

2. The missile water entry test launch device according to claim 1, characterized in that, An embedded cavity is provided at the bottom of the lower end of the swing rod, and a trigger cavity communicating with the embedded cavity is provided on one side of the lower end of the swing rod.

3. The missile water entry test launch device according to claim 2, characterized in that, The inner side of the container is provided with a loading cavity, a movable cavity and a fixed cavity connected in sequence from the open end to the closed end. The upper side wall of the container is provided with an embedding hole that is connected to the loading cavity and the trigger cavity of the swing rod.

4. The missile water entry test launch device according to claim 3, characterized in that, The first electromagnetic control component includes a trigger electromagnet and a limit trigger plate. The trigger electromagnet is set in the embedded cavity and extends into the loading cavity through the embedded hole. The limit trigger plate is fixed in the water container. A trigger protrusion is set in the middle part of the limit trigger plate. When the swing rod swings to the launch position, the limit trigger plate limits the swing rod. The trigger protrusion on the limit trigger plate triggers the trigger switch on the trigger electromagnet that passes through the trigger cavity of the swing rod.

5. The missile water entry test launch device according to claim 3, characterized in that, The second electromagnetic control assembly includes a movable electromagnet and a fixed electromagnet. The movable electromagnet is installed in the movable cavity of the container, and the fixed electromagnet is installed in the fixed cavity of the container.

6. The missile water entry test launch device according to claim 1, characterized in that, The water container is a cuboid with an open top. It is made of transparent glass and has a support at the bottom.

7. The missile water entry test launch device according to claim 1, characterized in that, When the baffle is completely inside the water container cavity, the length of the left cavity is one-quarter of the total length of the water container, and the water level in the left cavity is higher than the water level in the right cavity.

8. The missile water entry test launch device according to claim 1, characterized in that, The difference between the distance between the end of the long rod connected to the traction rope at its highest point and the second fixed pulley, and the distance between the end of the long rod connected to the traction rope at its lowest point and the second fixed pulley, is not less than the height of the baffle plate.

9. The missile water entry test launch device according to claim 1, characterized in that, A first water level measuring line and a second water level measuring line are provided on the fixed plate. The first water level measuring line is aligned with the side of one side of the water container, and the second water level measuring line is aligned with the side of the other side of the water container.

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