A ground-based experimental method for inter-layer satellite rotation unlocking and separation

Abstract

This invention provides a ground-based experimental method for the rotational unlocking and separation of satellites between layers. The method includes placing satellites on a tooling and placing an air cushion at the bottom of the tooling, so that the satellites and tooling are suspended, simulating a microgravity scenario. An unlocking device is used to lock and unlock the satellite layers. A nozzle structure is placed on either side of the tooling bottom to enable rotation between satellites in the same layer. Simultaneously, a cushioning rubber releases the compression force to separate the two satellites, ensuring collision-free rotation. This experimental method facilitates ground-based simulation experiments for the unlocking and separation of satellites between layers, and the simulation results are accurate and reliable, providing a reference for solving the problem of stacked satellite separation.

Description

Technical Field

[0001] The present invention belongs to the field of satellite experiment technology, and in particular relates to a ground experiment method for inter-layer satellite rotation unlocking and separation. Background Art

[0002] The first step in a successful satellite launch is separation from the carrier stage, followed by deployment. Only after successful separation can subsequent missions be carried out, otherwise the satellite will become space junk. For smaller micro- and nano-satellites, their light weight and compact size offer a wide range of unlocking and separation technology options, making it easier to conduct unlocking and separation experiments in the laboratory. However, stacked satellites (massing over 100kg) have more stringent requirements for unlocking and separation devices when conducting experiments on the ground due to their inherent mass and external dimensions. Therefore, the invention of an unlocking and separation device suitable for stacked satellites is of great significance. Summary of the Invention

[0003] Purpose of the invention: The technical problem to be solved by the present invention is to address the deficiencies of the existing technology and provide a ground experimental method for satellite rotation unlocking and separation, which can meet the contradiction between the accuracy and reliability of stacked satellite separation and better conduct satellite unlocking and separation experiments in the laboratory.

[0004] The present invention specifically comprises the following steps:

[0005] Step 1: Place the left satellite and the right satellite on the customized left tooling and right tooling respectively in advance, install air cushions on the bottom of the left tooling and the right tooling, and the air cushions are distributed on both sides of the bottom of the air cushion pressure plate and the bottom of the air cushion block. Place nozzle structure groups at the diagonal positions of the upper part of the lower bottom plate of the left tooling and the upper part of the lower bottom plate of the right tooling respectively. A single nozzle structure group contains 3 nozzle structures. Each tooling contains nozzle structure groups at two positions. Each tooling contains a total of 6 nozzle structures, and the nozzle structure groups spray in opposite directions. A buffer rubber is arranged on the side of one of the satellites, and an unlocking device is provided on the left satellite and the right satellite. The unlocking device includes a first unlocking device, a second unlocking device, an initiator, a hanging rope, and a fixed end. One end of the hanging rope is connected to the initiator, and the other end is connected to the fixed end.

[0006] The left satellite and the right satellite are tightly locked by locking the first unlocking device and the second unlocking device, and the squeezing force applied by the locking causes the buffer rubber to be in a compressed state;

[0007] Step 2: Open the air cushion (24) to complete the satellite rotation, unlocking and separation experiment.

[0008] In step 1, the left tooling (2a) and the right tooling (2b) have the same structure, both including side panels, an upper base plate, pillars, a lower base plate, an air cushion pressure plate, an air cushion, a nozzle structure group and an air cushion pad. The air cushion pressure plate extends out from both sides of the tooling to provide a larger anti-overturning moment. Air cushions are arranged in a triangular distribution on both sides of the air cushion pressure plate and under the air cushion pad. The number of air cushions is 3. The air cushion pressure plate, the air cushion pad and the lower base plate are fixedly connected. Each tooling contains two side panels, and the heights of the two side panels are inconsistent.

[0009] Furthermore, the left tooling and right tooling structures are composed of side panels, upper base panels, pillars, lower base panels, air cushion pressure plates and air cushion blocks from top to bottom, and all structural connection parts are fixedly connected.

[0010] Furthermore, the placement directions of the left tooling and the right tooling are opposite, and the two satellites are tightly fitted and pressed and fixed to the two toolings through the locking functions of the first unlocking device and the second unlocking device.

[0011] Furthermore, the step 2 specifically includes the following steps:

[0012] Step 2-1: Open the air cushion to make the left tooling, right tooling and left satellite, right satellite in a suspended state, simulate the microgravity environment, open all the nozzle structure groups, and release the jet with the opposite force direction, so that the left tooling, right tooling and left satellite, right satellite rotate in the suspended state.

[0013] Step 2-2: When the specified speed is reached, the pyrotechnic device in the first unlocking device is unlocked, and the buffer rubber releases the compression force, causing the left satellite, left tooling and right satellite, right tooling to rotate, unlock and separate, thereby completing the satellite rotation, unlocking and separation experiment.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention is a ground-based experimental method for satellite rotation unlocking and separation. The device meets the requirements for unlocking and separation of stacked satellites, and the device is easy to process, simple to operate, and convenient for installing experimental detection instruments.

[0016] (2) The present invention locks the two satellites tightly through the locking function of the unlocking device. When unlocking and separation are required, reliable separation can be achieved by simply releasing the constraints with pyrotechnics, which facilitates unlocking and separation experiments in the laboratory. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more apparent.

[0018] Figure 1This is an overall diagram of the stacked satellite unlocking and separation device of the present invention.

[0019] Figure 2 This is a schematic diagram of a single-sided satellite and tooling.

[0020] Figure 3 This is a top view of the two tooling pieces put together.

[0021] Figure 4 This is a top view of a single tool.

[0022] Figure 5 This is the right side view of a single tool.

[0023] Figure 6 This is the front view of a single tool. DETAILED DESCRIPTION

[0024] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 The present invention provides a ground experimental method for satellite rotation unlocking and separation, comprising the following steps:

[0025] Step 1: Place the left satellite 1a and the right satellite 1b on the customized left tooling 2a and right tooling 2b respectively in advance, install air cushions 24 on the bottom of the left tooling and the right tooling, and the air cushions are distributed on both sides of the bottom of the air cushion pressure plate 23 and the bottom of the air cushion block 25. Place nozzle structure groups 21 at the diagonal positions of the upper part of the lower bottom plate 22 of the left tooling and the upper part of the lower bottom plate 22 of the right tooling respectively. A single nozzle structure group contains 3 nozzle structures. Each tooling contains nozzle structure groups at two positions. Each tooling contains a total of 6 nozzle structures, and the nozzle structure groups have opposite spraying directions. Arrange a buffer rubber 4 on the side of one of the satellites. The left and right satellites are tightly locked by locking the first unlocking device 3a and the second unlocking device 3b. The extrusion force applied by the locking makes the buffer rubber 4 in a compressed state;

[0026] Step 2: Open the air cushion 24 to complete the satellite rotation, unlocking and separation experiment.

[0027] In step 1, the left tooling 2a and the right tooling 2b both include side panels 26, an upper base plate 28, pillars 27, a lower base plate 22, an air cushion pressure plate 23, an air cushion 24, a nozzle structure group 21, and an air cushion pad 25. The air cushion pressure plate 23 extends out from both sides of the tooling to provide a larger anti-overturning moment. Air cushions 24 are arranged in a triangular distribution on both sides of the air cushion pressure plate 23 and under the air cushion pad 25. The number of air cushions is 3. The air cushion pressure plate 23 and the air cushion pad 25 are fixedly connected to the lower base plate 22. Each tooling contains two side panels 26, and the two side panels have different heights.

[0028] The left tooling 2a and the right tooling 2b are composed of the side panels 26, the upper base plate 28, the support pillars 27, the lower base plate 22, the air cushion pressure plate 23 and the air cushion block 25 from top to bottom, and the connection parts of each structure are fixedly connected.

[0029] The left tooling and the right tooling are placed in opposite directions. The two satellites are tightly fitted and pressed against the two toolings by the locking functions of the first unlocking device 3a and the second unlocking device 3b.

[0030] The unlocking device of this experiment comprises a first unlocking device 3a, a second unlocking device 3b, an explosive device 31, a hanging rope 5, and a fixed end 6. One end of the hanging rope 5 is connected to the explosive device 31, and the other end is connected to the fixed end 6.

[0031] The step 2 specifically includes the following:

[0032] Step 2-1: Open the air cushion 24 to place the tooling and satellite in a suspended state, simulating a microgravity environment. Open all the nozzle structure groups 21, and the nozzle structure groups 21 release the jet, and the force applied by the jet is in the opposite direction, causing the structure to rotate at a constant speed.

[0033] Step 2-2: When the specified rotation speed is reached, the satellite is unlocked by the pyrotechnic device 31 in the first unlocking device 3a, the second unlocking device 3b and the pyrotechnic device 31 are pulled up by the suspension rope 5, and the buffer rubber 4 releases the elastic force from the compressed state. The two satellites and the corresponding tooling are unlocked and separated, thereby completing the satellite rotation, unlocking and separation experiment.

[0034] The present invention provides a ground-based experimental method for rotating, unlocking, and separating a satellite. While there are numerous methods and approaches for implementing this technical solution, the aforementioned are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A ground experimental method for inter-layer satellite rotation unlocking and separation, characterized in that: The following steps are involved: Step 1: Place the left satellite (1a) and the right satellite (1b) on the customized left tooling (2a) and right tooling (2b) respectively in advance, install air cushions (24) at the bottom of the left tooling (2a) and the right tooling (2b), and the air cushions (24) are distributed on both sides of the bottom of the air cushion pressure plate (23) and the bottom of the air cushion pad (25). Place the nozzle structure group (21) at the diagonal position of the upper part of the lower bottom plate (22) of the left tooling (2a) and the upper part of the lower bottom plate (22) of the right tooling respectively. The number of nozzle structures contained in a single nozzle structure group is 3 Each tooling includes two nozzle structure groups at two positions, and each tooling includes a total of six nozzle structures, and the nozzle structure groups have opposite spraying directions. A buffer rubber (4) is arranged on the side of one of the satellites, and an unlocking device is provided on the left satellite (1a) and the right satellite (1b). The unlocking device includes a first unlocking device (3a), a second unlocking device (3b), an explosive device (31), a hanging rope (5), and a fixed end (6). One end of the hanging rope (5) is connected to the explosive device (31), and the other end is connected to the fixed end (6). The left satellite (1a) and the right satellite (1b) are tightly locked by locking the first unlocking device (3a) and the second unlocking device (3b), and the squeezing force applied by the locking causes the buffer rubber (4) to be in a compressed state; Step 2: Open the air cushion (24) to complete the satellite rotation, unlocking and separation experiment; Step 2 includes the following steps: Step 2-1: Open the air cushion (24) so ​​that the left tooling (2a), the right tooling (2b) and the left satellite (1a), the right satellite (1b) are in a suspended state, simulating a microgravity environment, open all the nozzle structure groups (21), and the nozzle structure groups (21) release the jet, and the direction of the force applied by the jet is opposite, so that the left tooling (2a), the right tooling (2b) and the left satellite (1a), the right satellite (1b) rotate in the suspended state. Step 2-2: When the specified rotation speed is reached, the pyrotechnic device (31) in the first unlocking device (3a) is unlocked, and the buffer rubber (4) releases the compression force, so that the left satellite (1a), the left tooling (2a) and the right satellite (1b), the right tooling (2b) are rotated, unlocked and separated, thereby completing the satellite rotation, unlocking and separation experiment.

2. The method according to claim 1, characterized in that In step 1, the left tooling (2a) and the right tooling (2b) have the same structure, both including side panels (26), an upper base plate (28), pillars (27), a lower base plate (22), an air cushion pressure plate (23), an air cushion (24), a nozzle structure group (21) and an air cushion pad (25). The air cushion pressure plate (23) extends out of both sides of the tooling to provide an anti-overturning moment. Air cushions (24) are arranged in a triangular distribution on both sides of the air cushion pressure plate (23) and under the air cushion pad (25). The number of air cushions (24) is 3. The air cushion pressure plate (23) and the air cushion pad (25) are fixedly connected to the lower base plate (22). Each tooling contains two side panels (26), and the heights of the two side panels are inconsistent.

3. The method according to claim 2, characterized in that The left tooling (2a) and the right tooling (2b) are structurally composed of, from top to bottom, a side panel (26), an upper base panel (28), a support column (27), a lower base panel (22), an air cushion pressure plate (23) and an air cushion pad (25), and all structural connection parts are fixedly connected.

4. The method according to claim 3, characterized in that The left tooling (2a) and the right tooling (2b) are placed in opposite directions, and the two satellites are tightly fitted and pressed and fixed to the two toolings through the locking functions of the first unlocking device (3a) and the second unlocking device (3b).

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