Dynamic power-up conductive structure suitable for hypersonic velocity rocket sled test

Abstract

The invention provides a dynamic power-up conductive structure suitable for a hypersonic velocity rocket sled test, and mainly solves the problems that a conventional conductive column structure cannot bear a strong load and fails, and a dynamic power-up function cannot be realized. The scheme adopted by the invention comprises a fan-shaped conductive column, a vertical plate, an insulating embedded plate and a mounting seat, the fan-shaped conductive column is installed in the insulation embedded plate in an embedded mode, a binding post through hole in the center and four installation stud through holes in the periphery are reserved in the installation base, and the four studs on the conductive column are matched with the nut, the insulation sleeve and the gasket, so that the conductive column and the insulation embedded plate are fixedly installed on the installation base. The conductive column and the sledge body are insulated while the conductive column and the sledge body are fixedly connected. A novel structural design and a light material are adopted, the problems of the structure, quality, strength and reliability of an existing conductive column in a hypersonic speed test scene are systematically solved, and the hypersonic speed use requirement is met.

Description

Technical Field

[0001] The invention belongs to the technical field of military product shooting range test, and in particular relates to a dynamic power-on structure. Background Art

[0002] The rocket sled test is a special ground test method for evaluating the high dynamic performance of weapons and equipment. It has the characteristics of simulating the Mach number, overload, attitude, aerodynamic / thermal environment of the full-mass shape test product under working conditions on the ground, and can effectively test and evaluate the real working functions and performance of missile weapon systems / key components under multi-conditions and multi-factor coupling conditions. It is a key test method to support high-tech research and high-tech equipment development. With the rapid development of weapons and equipment technology, the research on rocket sled test technology is aimed at the scientific research and finalization test needs of national defense equipment such as hypersonic weapons and equipment, supersonic large-mass weapons and equipment, and near-space aircraft. It carries out research on rocket sled system design and prediction technology under the coupling of multiple factors such as aerodynamics, vibration, heat, and control, research on simulation technology of aerodynamic environment consistent with the sky and the earth, and research on high dynamic mechanical environment control technology, etc., to form technical capabilities such as hypersonic testing, effective simulation of high-altitude aerodynamic environment on the ground, and accurate simulation of flight mechanical environment. In order to meet the functional assessment and verification of the test object or the power endurance requirements of the rocket sled system, dynamic power-on is usually used to provide power output during the test. Specifically, during the operation of the rocket sled, the conductive column installed on the sled cuts the charged copper mesh preset on the side of the track so that the object to be powered can dynamically obtain current. In subsonic and supersonic rocket sled tests, the above method has been relatively mature. As the development and assessment of weapons and equipment represented by hypersonic warheads have generally developed towards high Mach numbers, newer and higher requirements have been put forward for the improvement of rocket sled test technology capabilities. Under hypersonic conditions, the vibration environment and aerodynamic loads are intensified. In the design of the dynamic power-on system, the conventional conductive column in the past has a low degree of integration with the sled body due to its structural shape and heavy mass. Under the strong vibration and impact conditions of hypersonic conditions, its rigidity is insufficient, and it cannot complete dynamic power-on and cannot meet the hypersonic operation requirements of the rocket sled system.

[0003] In order to solve the problem of dynamic power-on in rocket sled tests under hypersonic conditions, the present invention proposes a dynamic power-on conductive structure suitable for hypersonic rocket sled tests, which solves the problem of reliably realizing the dynamic power-on function under hypersonic conditions and supports the assessment and verification of relevant test products. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art and solve the problem of dynamic power-on in rocket sled tests under hypersonic conditions, the present invention provides a dynamic power-on conductive structure suitable for hypersonic rocket sled tests.

[0005] A dynamic powered conductive structure suitable for hypersonic rocket sled testing, comprising a fan-shaped conductive column 1, a vertical plate, an insulating panel 2 and a mounting seat 4; the vertical plate is a rectangular plate; the fan-shaped conductive column 1 is a fan-shaped plate; the vertical section where one side of the central angle of the fan-shaped conductive column 1 is located is perpendicular to the top surface of the vertical plate; the vertical section where the other side of the central angle of the fan-shaped conductive column 1 is located is fixedly connected to the top surface of the vertical plate; a terminal 8 is arranged at the center position of the bottom surface of the vertical plate; a plurality of mounting studs are arranged on the bottom surface of the vertical plate; the insulating panel 2 is a rectangular plate; a panel groove is arranged on the top surface of the insulating panel 2; the size of the panel groove is the same as that of the vertical plate; a first terminal through hole is arranged at the center position of the panel groove; a plurality of stud through holes are arranged on the bottom surface of the panel groove; the vertical plate is arranged in the panel groove; after the vertical plate is installed, the vertical plate is embedded in the panel groove to realize the physical connection between the fan-shaped conductive column 1 and the vertical plate Physical isolation; the insulating panel 2 is arranged on the mounting seat 4; the mounting seat 4 includes a connecting cavity and a fixing seat; the connecting cavity and the fixing seat are both rectangular parallelepipeds; the bottom surface of the connecting cavity is fixedly connected to the top surface of the fixing seat; the connecting cavity is a hollow rectangular parallelepiped; a connecting cavity groove is arranged on the top surface of the connecting cavity; the size of the connecting cavity groove is the same as that of the insulating panel 2; a second terminal through hole is arranged at the center position of the bottom surface of the connecting cavity groove; a plurality of connecting cavity groove through holes are arranged on the bottom surface of the connecting cavity groove; the insulating panel 2 is embedded in the connecting cavity groove; a cable through hole is arranged on the side of the connecting cavity; a cable sealing plate 3 is arranged in the cable through hole; after the fan-shaped conductive column 1, the vertical plate, the insulating panel 2 and the mounting seat 4 are installed, the mounting studs are passed through the stud through holes and the connecting cavity groove through holes, and nuts are used to complete the fixation inside the connecting cavity; the fixing seat is fixedly connected to the support seat of the test piece.

[0006] Furthermore, the central angle of the sector-shaped conductive column 1 is 90°.

[0007] Furthermore, the arc surface of the sector-shaped conductive column 1 is provided with an inclined surface; the angle between the inclined surface and the sector surface of the sector-shaped conductive column 1 is 2.5°.

[0008] Furthermore, the thickness of the sector-shaped conductive column 1 decreases gradually from the center to the arc in the radial direction.

[0009] Furthermore, the insulating sleeve 5, the washer 6 and the nut are nested in sequence on the mounting stud.

[0010] Furthermore, the fan-shaped conductive column 1, the vertical plate and the mounting stud are made of aluminum alloy; the insulating panel 2 is made of phenolic cotton cloth laminate; the mounting seat and the cable sealing plate 3 are made of BS960 steel; the insulating sleeve is made of nylon 1010; and the gasket is made of No. 20 round steel.

[0011] Furthermore, a long strip groove is provided on the bottom surface of the fixing seat; the shape of the long strip groove is the same as the shape of the integral beam of the skid body; during installation, the integral beam of the skid body is embedded in the long strip groove of the fixing seat.

[0012] Furthermore, the fan-shaped conductive column 1, the vertical plate, the terminal 8 and the mounting studs are all designed and processed in an integrated manner.

[0013] Furthermore, the number of the mounting studs, the number of the stud through holes and the number of the connecting cavity groove through holes are the same.

[0014] Furthermore, the four corners of the vertical plate are chamfered; the four corners of the insulating panel 2 are chamfered.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention proposes for the first time a dynamically powered conductive column for hypersonic rocket sled testing, which adopts a new structural design and lightweight materials, and systematically optimizes and solves the deficiencies in the structure, quality, strength, reliability, etc. of the existing conductive columns, meeting the requirements for hypersonic use.

[0017] 2. For the first time, the blade body is designed with an integrated aluminum alloy lightweight and high-strength material, which has a smaller overall appearance and effectively improves the ability of the conductive column to withstand strong impact and vibration environments.

[0018] 3. The installation method is designed to be embedded, which makes full use of the load-bearing components of the sled body and integrates with the rocket sled body, making the overall structure simpler.

[0019] 4. The conductive column matches the new embedded line layout method of the rocket sled test. The lines on the sled are not exposed, and the dynamic power-on system has higher reliability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of a dynamically powered conductive column for a hypersonic rocket sled test according to the present invention;

[0021] Figure 2 It is a structural diagram of the fan-shaped conductive column of the present invention;

[0022] Figure 3 is a structural diagram of the insulating panel of the present invention;

[0023] Figure 4 This is a structural diagram of the installation and fixing form of the conductive column of the present invention;

[0024] Figure 5 It is a structural diagram of the mounting seat of the present invention.

[0025] Among them: 1- fan-shaped conductive column; 2- insulation panel; 3- cable sealing plate; 4- mounting seat; 5- insulation sleeve; 6- washer; 7- nut; 8- terminal. DETAILED DESCRIPTION

[0026] The technical solution adopted by the present invention is:

[0027] A dynamic powered conductive structure suitable for a hypersonic rocket sled test, comprising a fan-shaped conductive column 1, a vertical plate, an insulating insert 2 and a mounting seat 4; the vertical plate is a rectangular plate; the fan-shaped conductive column 1 is a fan-shaped plate; the central angle of the fan-shaped conductive column 1 is 90°; the thickness of the fan-shaped conductive column 1 gradually decreases from the center of the circle to the arc in the radial direction; an inclined surface is provided on the arc surface of the fan-shaped conductive column 1; the angle between the inclined surface and the fan surface of the fan-shaped conductive column 1 is 2.5°; the vertical section where one side of the central angle of the fan-shaped conductive column 1 is located is perpendicular to the top surface of the vertical plate; the vertical section where the other ... The vertical section is fixedly connected to the top surface of the vertical plate; the four corners of the vertical plate are chamfered; a terminal 8 is arranged at the center of the bottom surface of the vertical plate; a first mounting stud, a second mounting stud, a third mounting stud and a fourth mounting stud are arranged on the bottom surface of the vertical plate; there are 4 mounting studs; the fan-shaped conductive column 1, the vertical plate, the terminal 8 and the mounting studs are all integrated designs; the arc surface of the fan-shaped conductive column 1 is provided with an inclined surface to form a knife-shaped incision, and the thickness of the fan-shaped conductive column 1 gradually decreases from the center of the circle to the arc along the radial direction, so that the overall structure has more streamlined characteristics, effectively reducing the influence of aerodynamic shock loads under hypersonic conditions;

[0028] The insulating panel 2 is a rectangular plate; chamfers are set at the four corners of the insulating panel 2; a panel groove is set on the top surface of the insulating panel 2; the size of the panel groove is the same as the size of the vertical plate; a first terminal through hole is set at the center of the panel groove; a first stud through hole, a second stud through hole, a third stud through hole and a fourth stud through hole are set on the bottom surface of the panel groove; a vertical plate is set in the panel groove; after the vertical plate is installed, the vertical plate is embedded in the panel groove to achieve physical isolation between the fan-shaped conductive column 1 and the vertical plate;

[0029] The insulating panel 2 is arranged on a mounting seat 4;

[0030] The mounting seat 4 includes a connecting cavity and a fixing seat; the connecting cavity and the fixing seat are both rectangular parallelepipeds; the bottom surface of the connecting cavity is fixedly connected to the top surface of the fixing seat; the connecting cavity is a hollow rectangular parallelepiped; a connecting cavity groove is provided on the top surface of the connecting cavity; the size of the connecting cavity groove is the same as the size of the insulating panel 2; a second terminal through hole is provided at the center of the bottom surface of the connecting cavity groove; a fifth stud through hole, a sixth stud through hole, a seventh stud through hole and an eighth stud through hole are provided on the bottom surface of the connecting cavity groove; a cable through hole is provided on the side of the connecting cavity through hole; the insulating panel 2 is nested and installed in the groove of the connecting cavity; a cable sealing plate 3 is arranged in the cable through hole; after the fan-shaped conductive column 1, the vertical plate, the insulating panel 2 and the mounting seat 4 are installed, inside the connecting cavity, the first mounting stud, the second mounting stud, the third mounting stud and the fourth mounting stud are successively provided with insulating sleeves 5, washers 6 and nuts to complete the fixation; a long strip groove is arranged on the bottom surface of the fixing seat; the shape of the long strip groove is the same as the shape of the overall beam of the pry body; during installation, the overall beam of the pry body is embedded in the long strip groove of the fixing seat.

[0031] The fan-shaped conductive column 1, the vertical plate and the mounting studs are made of aluminum alloy. The conductive column is made of aluminum alloy as a whole, which is lighter than traditional steel, can reduce the vibration load caused by the system operation and improve the structural safety.

[0032] The material of the insulating panel 2 is a phenolic cotton cloth laminate;

[0033] The material of the mounting seat and the cable sealing plate 3 is BS960 steel;

[0034] The material of the insulating sleeve is nylon 1010;

[0035] The gasket is made of No. 20 round steel;

[0036] When installing the conductive column, first nest the conductive column from the outside to the inside into the recessed inner cavity of the insulating insert, so that the outer contour of the conductive column vertical plate fits well with the wall of the recessed inner cavity of the insulating insert, and the four studs and terminal posts of the conductive column pass through the reserved holes of the insulating insert; lead the wires on the rocket sled out from the inner cavity of the mounting base, and connect and fix them with the conductive column terminal posts; put the small end of the insulating sleeve from the inner cavity of the mounting base into the four mounting holes reserved for the mounting base, and nest the conductive column and the insulating insert into the mounting base from the outside to the inside, insert the four studs into the inner holes of the insulating sleeve, and install the washers and M10 nuts on the conductive column studs from the large end of the insulating sleeve in turn. As the studs extend inward, they are gradually screwed in and tightened until the conductive column is installed. The direction of the inclined surface of the conductive column is consistent with the direction of the rocket sled body moving forward.

[0037] The present invention is a device designed to address the problem in hypersonic rocket sled tests that conventional conductive column structures cannot withstand strong loads and are damaged, and that the dynamic power-on function cannot be achieved. The device can ensure sufficient strength redundancy and reliable cutting effect with the power-on system under hypersonic load conditions, thereby safely and effectively completing dynamic power-on.

[0038] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0039] The present invention is a dynamic powered conductive column for hypersonic rocket sled testing, which is installed on the rocket sled body and includes a fan-shaped conductive column, a terminal, an insulating panel, a mounting seat, an insulating sleeve, a gasket, a nut, and a cable sealing plate. The fan-shaped conductive column is embedded in the insulating panel, and a central terminal hole and four mounting stud holes are reserved on the mounting seat. The four M10 studs on the conductive column cooperate with nuts, insulating sleeves, and washers to fix the conductive column and the insulating panel on the mounting seat, so that the conductive column and the sled body are fixedly connected while ensuring insulation between the conductive column and the sled body. The small end of the insulating sleeve penetrates into the mounting hole reserved on the mounting seat, and the large end step surface contacts the inner wall of the mounting seat. The blade of the conductive column extends out to cooperate with the ground power grid for power supply, and the terminal extends to the mounting seat to form a passage with the embedded wiring on the sled body.

[0040] The present invention is realized in that: the conductive column adopts a new fan-shaped structure, the cutting blade body and the blade are designed as a plate-shaped part, the outer contour of the blade body is 108mm long and 80mm wide, the blade body and the vertical plate are in a 90° vertical configuration, the root thickness of the blade body is 10mm (excluding the chamfer), and it gradually transitions to thinner outwards, the outermost side is 3.2mm (excluding the chamfer), and the center of the thickness is at a 2.5° bevel angle. The outer edge contour is two arcs with a curvature radius of 121mm and 110mm, forming a blade-shaped incision, and the overall structure is more streamlined, which can effectively reduce the height. Influence of aerodynamic impact load under supersonic conditions; the vertical plate is rectangular in shape, 120mm long and 50mm wide, with R10mm chamfers at the four corners; the overall material of the conductive column is AL2A12 aluminum alloy, which is lighter than traditional steel and can greatly reduce the vibration load caused during system operation and improve structural safety; the installation studs and terminal posts are located on the back of the vertical plate and are integrated with the main body of the conductive column. There are 4 studs in total, located at the four corners of the vertical plate, with a size of M10×50mm (length), and one terminal post, located in the center of the vertical plate.

[0041] The present invention is also achieved by: the insulating panel is made of 3028 phenolic cotton cloth laminate, with a rectangular shape, a length of 130mm, a width of 60mm, and four corners chamfered with R15mm; a concave structure is designed on one side for installing the conductive column, and the concave shape matches the shape of the conductive column vertical plate, so that the vertical plate can be embedded therein, thereby realizing physical isolation between the conductive column and the sled body as a whole; the insulating panel is reserved with four stud through holes with a diameter of 11mm, a top and bottom hole spacing of 30mm, a left and right hole spacing of 90mm, and a terminal through hole with a diameter of 35mm is reserved in the center.

[0042] The present invention is also achieved in that the design of the mounting seat utilizes the integral beam component of the sled body itself without additional structure. The integral beam is made of BS960 steel. The mounting seat structure is designed on both sides thereof, which is concave in shape, and four stud passing holes are reserved, with a diameter of 20 mm, a top and bottom hole spacing of 30 mm, and a left and right hole spacing of 90 mm. A terminal passing hole is reserved in the center, with a diameter of 35 mm, which matches the shape of the insulating panel.

[0043] The present invention is also realized in that: the insulating sleeve material is nylon 1010, the total height is 12mm, the outer diameter of the large end is 26mm, the height is 5mm, the outer diameter of the small end is 19mm, the height is 7mm, and the inner cavity is a through hole with a diameter of 11mm.

[0044] The present invention is also realized in that: the gasket is made of 20 steel round steel, has a thickness of 3mm, an inner hole diameter of 1mm, and an outer diameter of 26mm.

[0045] The present invention is also implemented in that: the cable sealing plate is made of BS960 steel, has a length of 50 mm, a width of 45 mm, a thickness of 6 mm, and four corners are chamfered with R10.

[0046] Embodiment 1:

[0047] In a certain type of warhead terminal effect hypersonic rocket sled test, the rocket sled is composed of a first-stage sled and a product sled. The booster force adopts a two-stage booster, first ignites the engine on the first-stage sled, and then dynamically ignites the engine on the product sled during the on-orbit operation. When the product sled engine ignites, the speed is low, and a traditional triangular conductive column is installed. A dynamic power-on system for separating the rocket sled is arranged at the end of the slide rail. At this time, the rocket sled runs at a hypersonic speed, and a dynamic power-on conductive column for a hypersonic rocket sled of the present invention is installed.

[0048] During the test, the booster rocket engines on the first-stage skid and the product skid are ignited successively according to the preset process. Under the thrust of the rocket engine, the rocket sled accelerates and slides along the slide rail. After sliding to the specified position of the trajectory, the system speed reaches more than 5Ma. At this time, the system separates the power supply system through the skid, and the conductive column device on the product skid cuts the ground power supply network to provide power for the dynamic detonation of the explosive bolts, so that the test article and the product skid are released from constraints. The test article hits the test target in a free state, at a specified speed and at an impact angle to complete the relevant rocket sled test.

[0049] Through the application of the present invention, the reliable realization of the key link of dynamic power-on in the hypersonic rocket sled test is effectively guaranteed, providing key support for the improvement of hypersonic rocket sled test technology.

Claims

1. A dynamically powered conductive structure suitable for hypersonic rocket sled testing, characterized in that: The invention comprises a fan-shaped conductive column (1), a vertical plate, an insulating panel (2) and a mounting seat (4); the vertical plate is a rectangular plate; the fan-shaped conductive column (1) is a fan-shaped plate; the vertical section where one side of the central angle of the fan-shaped conductive column (1) is located is perpendicular to the top surface of the vertical plate; the vertical section where the other side of the central angle of the fan-shaped conductive column (1) is located is fixedly connected to the top surface of the vertical plate; a terminal (8) is arranged at the center position of the bottom surface of the vertical plate; a plurality of mounting studs are arranged at the bottom surface of the vertical plate; the insulating panel (2) is a rectangular plate; a panel groove is arranged at the top surface of the insulating panel (2); the size of the panel groove is the same as that of the vertical plate; a first terminal through hole is arranged at the center position of the panel groove; a plurality of stud through holes are arranged on the bottom surface of the panel groove; the vertical plate is embedded in the panel groove; after the vertical plate is installed, the vertical plate is embedded in the panel groove to achieve physical isolation between the fan-shaped conductive column (1) and the vertical plate; the insulating panel ( 2) is arranged on the mounting seat (4); the mounting seat (4) includes a connecting cavity and a fixing seat; the connecting cavity and the fixing seat are both rectangular parallelepipeds; the bottom surface of the connecting cavity is fixedly connected to the top surface of the fixing seat; the connecting cavity is a hollow rectangular parallelepiped; a connecting cavity groove is arranged on the top surface of the connecting cavity; the size of the connecting cavity groove is the same as the size of the insulating panel (2); a second terminal through hole is arranged at the center position of the bottom surface of the connecting cavity groove; a plurality of connecting cavity groove through holes are arranged on the bottom surface of the connecting cavity groove; the insulating panel (2) is embedded in the connecting cavity groove; a cable through hole is arranged on the side of the connecting cavity; a cable sealing plate (3) is arranged in the cable through hole; after the fan-shaped conductive column (1), the vertical plate, the insulating panel (2) and the mounting seat (4) are installed, the mounting studs are passed through the stud through holes and the connecting cavity groove through holes, and nuts are used to complete the fixation inside the connecting cavity; the fixing seat is fixedly connected to the test piece support seat.

2. A dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The central angle of the sector-shaped conductive column (1) is 90°.

3. A dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The arc surface of the sector-shaped conductive column (1) is provided with an inclined surface; the angle between the inclined surface and the sector surface of the sector-shaped conductive column (1) is 2.5°.

4. A dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The thickness of the sector-shaped conductive column (1) gradually decreases from the center of the circle to the arc in the radial direction.

5. The dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The fan-shaped conductive column (1), the vertical plate and the mounting stud are made of aluminum alloy; the insulating panel (2) is made of phenolic cotton cloth laminate; the mounting seat and the cable sealing plate (3) are made of BS960 steel; the insulating sleeve is made of nylon 1010; and the gasket is made of No. 20 round steel.

6. A dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The bottom surface of the fixing seat is provided with a long strip groove; the shape of the long strip groove is the same as the shape of the integral beam of the skid body; during installation, the integral beam of the skid body is embedded in the long strip groove of the fixing seat.

7. A dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The fan-shaped conductive column (1), the vertical plate, the terminal column (8) and the mounting stud are all designed and processed in an integrated manner.

8. The dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The number of the mounting studs, the number of the stud through holes and the number of the connecting cavity groove through holes are the same.

9. The dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: The four corners of the vertical plate are chamfered; the four corners of the insulating panel (2) are chamfered.

10. A dynamically powered conductive structure suitable for hypersonic rocket sled testing according to claim 1, characterized in that: An insulating sleeve (5), a washer (6) and a nut are nested in sequence on the mounting stud.

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