Supersonic acceleration test device

Abstract

The utility model belongs to the technical field of testing devices, and particularly relates to a supersonic speed acceleration testing device which comprises a liquid storage barrel, a connecting device and a recycling barrel, a cylinder bottom is installed at one end of the liquid storage barrel and connected with a heat generating device, and the heat generating device is connected with an igniter. The igniter is connected with a heat generation device through a wire, a liquid adding device is installed at the top of the cylinder bottom, the supersonic speed TS testing device further comprises an accelerating barrel, an accelerating piece is installed in the accelerating barrel, and a rupture disk is installed at the other end of the liquid storage barrel. And a series of tests are carried out, various speed tests such as 250 m / s, 300 m / s and 400 m / s are carried out, and the highest speed reaches 600 m / s, so that the test device is relatively good in repeatability, can replace high-cost tests such as explosives and the like, reduces the test cost, improves the test safety, and can also be used for various cold acceleration boosting stage tests.

Description

Technical Field

[0001] The utility model relates to the technical field of test devices, in particular to a supersonic acceleration test device. Background Art

[0002] Through investigation, it is found that the actual projectiles used in the acceleration test are gunpowder, gas generators, etc., and simulation tests have high requirements on the site, environment and safety control. They are generally used when conducting physical tests after simulation tests, and the single cost is relatively high. In the past, tests using compressed air could only meet the needs of medium and low speed tests, but the maximum speed could only reach about 200m / s, which could not meet the needs of supersonic TS tests.

[0003] Therefore, a new technical solution is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a supersonic acceleration test device, which has good repeatability, can replace tests with higher costs such as explosives, reduce test costs, improve test safety, and can also be used for various cold acceleration boost stage tests.

[0005] To achieve the above object, the utility model provides the following technical solutions: a supersonic acceleration test device, comprising a liquid storage cylinder, a connecting device and a recovery cylinder, a cylinder bottom is installed at one end of the liquid storage cylinder, the cylinder bottom is connected to a heat generating device, the heat generating device is connected to an igniter, the igniter is connected to the heat generating device through a wire, and a liquid adding device is installed on the top of the cylinder bottom;

[0006] It also includes an acceleration cylinder, in which an acceleration piece is installed. The other end of the liquid storage cylinder is equipped with a bursting piece. The acceleration piece is connected to a data acquisition device and a speed measuring device, and the data acquisition device and the speed measuring device are connected to the acceleration piece through a wire.

[0007] Preferably, the bursting disc, the liquid storage cylinder, the heat generating device and the cylinder bottom are connected by the connecting device.

[0008] Preferably, the recovery cylinder is equipped with sandbags to buffer the energy of the accelerator.

[0009] Preferably, a plurality of fixing frames are installed at the bottom of the acceleration cylinder and the liquid storage cylinder, and are fixed to the ground by the fixing frames.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model studies the supersonic TS of carbon dioxide phase change, designs a variety of test devices, and conducts a series of tests. It conducts various speed tests such as 250m / s, 300m / s, 400m / s, and the highest speed reaches 600m / s, which shows that the test device has good repeatability, can replace high-cost tests such as explosives, reduce test costs, improve test safety, and can also be used for various cold acceleration boost stage tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the accelerated test system of the utility model;

[0013] Figure 2 This is a schematic diagram of the acceleration system model of the utility model.

[0014] In the figure: 1. igniter; 2. heat generating device; 3. liquid storage cylinder; 4. bursting disc; 5. connecting device; 6. accelerating cylinder; 7. accelerating member; 9. speed measuring device; 10. recovery cylinder; 11. fixing frame; 12. cylinder bottom; 13. data acquisition device; 14. liquid adding device; 15. sandbag. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-2 A supersonic acceleration test device includes a liquid storage cylinder 3, one end of the liquid storage cylinder 3 is equipped with a cylinder bottom 12, the cylinder bottom 12 is connected to a heat generating device 2, the heat generating device 2 is connected to an igniter 1, the igniter 1 is connected to the heat generating device 2 through a wire, and a liquid adding device 14 is installed on the top of the cylinder bottom 12;

[0017] It also includes an acceleration cylinder 6, in which an acceleration member 7 is installed. The other end of the liquid storage cylinder 3 is equipped with a bursting disc 4. The acceleration member 7 is connected to the data acquisition device 13 and the speed measuring device 9. The data acquisition device 13 and the speed measuring device 9 are connected to the acceleration member 7 through wires.

[0018] It also includes a connecting device 5, through which the bursting disc 4, the liquid storage cylinder 3, the heat generating device 2 and the cylinder bottom 12 are connected.

[0019] The recovery tube 10 is also included. A sandbag 15 is installed in the recovery tube 10 to buffer the energy of the acceleration member 7.

[0020] A plurality of fixing frames 11 are installed at the bottom of the acceleration cylinder 6 and the liquid storage cylinder 3 and are fixed to the ground by the fixing frames 11 .

[0021] The specific implementation process of the utility model is as follows: during the test, liquid carbon dioxide is added to the liquid storage cylinder 3 through the liquid adding device 14, and the liquid filling port is closed after reaching the specified pressure, and the liquid adding device 14 is removed after the liquid filling port of the liquid storage cylinder 3 is sealed; the test is carried out after the site is cleared, and the heat generating device is controlled by the igniter 1 during the test, and the heat generating device generates enough heat to quickly gasify the liquid carbon dioxide, and generate high pressure in the liquid storage cylinder 3. When the design pressure is reached, the bursting disc 4 is sheared, and the bursting disc 4 ruptures, and the gasified carbon dioxide pushes the accelerator 7 to move at a high speed in the accelerator cylinder 6, so as to achieve the test purpose of supersonic discharge;

[0022] Furthermore, the volume of liquid carbon dioxide increases rapidly when it is converted into gaseous carbon dioxide, generating high pressure in a closed space. After reaching a set pressure, the pressure is released in a concentrated manner, so that the accelerator 7 obtains kinetic energy and accelerates the movement. In the experiment, heat is provided by the heat generating device 2, and liquid carbon dioxide is vaporized in the liquid storage cylinder 3 to generate high pressure. After shearing the bursting disc 4, the expanded gas enters the accelerator cylinder 6, pushing the accelerator 7 to accelerate the movement in the accelerator cylinder 6 to obtain the required speed.

[0023] Test data, the speed measuring distance of the speed measuring device is 400mm; the collection time of the collection device is 0.00063198s;

[0024] Calculation result: speed = 0.4 / 0.00063198 = 632.93 m / s

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A supersonic acceleration test device, characterized in that: The invention comprises a liquid storage cylinder (3), a connecting device (5) and a recovery cylinder (10); a cylinder bottom (12) is installed at one end of the liquid storage cylinder (3); the cylinder bottom (12) is connected to a heat generating device (2); the heat generating device (2) is connected to an igniter (1); the igniter (1) is connected to the heat generating device (2) via a wire; and a liquid adding device (14) is installed at the top of the cylinder bottom (12); It also comprises an accelerating cylinder (6), an accelerating member (7) is installed in the accelerating cylinder (6), a bursting disc (4) is installed at the other end of the liquid storage cylinder (3), the accelerating member (7) is connected to a data acquisition device (13) and a speed measuring device (9), and the data acquisition device (13) and the speed measuring device (9) are connected to the accelerating member (7) via a wire.

2. A supersonic acceleration test device according to claim 1, characterized in that: The bursting disc (4), the liquid storage cylinder (3), the heat generating device (2) and the cylinder bottom (12) are connected via the connecting device (5).

3. A supersonic acceleration test device according to claim 1, characterized in that: The recovery cylinder (10) is provided with a sandbag (15) to buffer the energy of the acceleration member (7).

4. A supersonic acceleration test device according to claim 1, characterized in that: A plurality of fixing frames (11) are installed at the bottom of the acceleration cylinder (6) and the liquid storage cylinder (3), and are fixed to the ground by the fixing frames (11).

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