Ultra-long-distance artillery projectile outlet initial speed test system
By designing an initial velocity test system for the muzzle outlet of ultra-long-range artillery projectiles, the voltage changes during the projectile flight are recorded using the net target and the test circuit, and the projectile outlet velocity is calculated, which solves the limited test range and low accuracy in the existing technology. Problem, high-precision speed measurement is achieved, and the performance of the weapon system is improved.
Patent Information
- Application Number
- CN202411515736.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-02-18
AI Technical Summary
The prior art has problems such as limited testing range and low measurement accuracy in ultra-long-range artillery projectile outlet velocity test.
An ultra-long-range artillery projectile outlet initial velocity test system was designed, including a mesh target, a test circuit, a collection system and a computer. By arranging multiple parallel mesh targets on the projectile flight trajectory, each mesh target consists of channel steel and target wire mesh. During the projectile flight, the target wire mesh is cut one by one, resulting in a change in voltage across the detection resistance in the test circuit. By recording the voltage change time and the distance between the mesh target, the speed of the projectile exiting the muzzle was calculated.
It realizes accurate measurement of the muzzle speed of ultra-long-range artillery projectiles, fills the gap in the load testing technology of the high-speed anti-aircraft artillery weapon bearing platform, and improves the performance of the weapon system.
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Figure CN119468820A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of ultra-long-range artillery projectile muzzle velocity testing, and in particular relates to an ultra-long-range artillery projectile muzzle initial velocity testing system. Background Art
[0002] The muzzle velocity parameters of ultra-long-range artillery projectiles are an important way to evaluate the design effect of artillery. The main methods for testing the muzzle velocity of artillery projectiles currently carried out are: high-speed camera method; high-speed camera has lens distortion, which will cause measurement errors, and the field of view during high-speed camera testing is limited, and tracking tests can only be performed within a very short distance, which cannot meet the use requirements. Summary of the invention
[0003] The purpose of the present invention is to provide a system for testing the muzzle velocity of an ultra-long-range artillery projectile, so as to solve the problem that the test range of the ultra-long-range artillery projectile at the muzzle is limited and the test accuracy is not high.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0005] A system for testing the muzzle velocity of an ultra-long-range artillery projectile includes a net target, a test circuit, a collection system, and a computer, wherein:
[0006] The net target is arranged on the flight trajectory of the projectile after it flies out of the gun muzzle. Multiple net targets are arranged in parallel. Each net target includes two parallel channel steels, and a target wire mesh woven from a whole target wire is arranged between the channel steels. The net target is fixed in position by a fixing frame.
[0007] Connect the two ends of the target wire in each net target to the test circuit, use the acquisition system to monitor the voltage change at both ends of the detection resistor in the test circuit, and connect the collected voltage signal and corresponding time to the computer;
[0008] After the projectile is fired from the artillery, it will cut through the target wire mesh one by one during the flight process, causing the voltage across the detection resistor in the test circuit to change; the distance between adjacent targets and the time it takes for the voltage across the detection resistor to change are used to calculate the speed of the ultra-long-range artillery projectile leaving the muzzle at different stages.
[0009] Furthermore, insulation treatment is performed between the channel steel and the target wire in the mesh target, so that there is no conduction between the target wire and the channel steel.
[0010] Furthermore, the mesh size of the target wire mesh is determined according to the size of the projectile, so that the target wire can be cut when the projectile passes through the target wire mesh.
[0011] Furthermore, the target wire is a metal wire, and a surface of the target wire has an insulating layer.
[0012] Furthermore, the target wires on the same target mesh cannot be short-circuited to avoid a short circuit in the test circuit.
[0013] Furthermore, before performing the muzzle velocity test of the projectile, the distance between adjacent net targets needs to be measured and recorded; the distance between adjacent net targets can be the same or different.
[0014] Furthermore, the acquisition system is used to acquire the voltage signal across the detection resistor and record the acquisition time; the acquired information is sent to a computer to calculate the initial velocity of the artillery projectile out of the muzzle.
[0015] Further, the test circuit includes a series resistor, a detection resistor and a power supply, wherein:
[0016] The number of series resistors is consistent with the number of mesh targets. The series resistors and detection resistors are connected in series to the power supply, and the acquisition system is connected to both ends of the detection resistor; both ends of the target wire in each mesh target are respectively connected to both ends of a series resistor.
[0017] Furthermore, the initial velocity of the projectile out of the muzzle is calculated as follows:
[0018]
[0019] where s i,i+1 Indicates the distance between the i-th and i+1-th targets; Δt i,i+1 It represents the time difference between the i-th and i+1-th voltage changes at both ends of the detection resistor, v i,i+1 It represents the flight speed of the projectile at the distance between the i and i+1 targets during its flight, i=1, 2,…, N-1; N is the number of targets.
[0020] Compared with the prior art, the present invention has the following technical features:
[0021] The present invention designs a projectile exit muzzle velocity test circuit, which cuts off the net target after the projectile exits the muzzle, and completes the test of the projectile exit muzzle velocity of ultra-long-range artillery by recording the voltage change time of the test circuit and the distance between the net targets, and calculating and processing. Through the test of the projectile exit muzzle velocity of ultra-long-range artillery, input conditions can be provided for the dynamic response analysis of the weapon system, and then the force transfer characteristics can be changed through structural optimization, the stress condition of the components can be improved, and the performance of the weapon system can be improved, while filling the gap in the load test technology of the high-rate anti-aircraft artillery weapon bearing platform. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the structure of the test system of the present invention.
[0023] Explanation of the numbers in the figure: 1 target, 2 test circuit, 3 acquisition system, 4 computer. DETAILED DESCRIPTION
[0024] The ultra-long-range artillery projectile muzzle velocity test system is used to test the speed of the entire process of ultra-long-range artillery projectile exiting the muzzle. The ultra-long-range artillery projectile muzzle velocity test can provide input conditions for the dynamic response analysis of the weapon system, and then change the force transfer characteristics through structural optimization, improve the stress condition of the components, and improve the performance of the weapon system. Accurate projectile initial velocity measurement is of great significance for compiling firing tables and estimating projectile landing points.
[0025] Referring to the accompanying drawings, the present invention provides an ultra-long-range artillery projectile muzzle velocity test system, comprising a net target 1, a test circuit 2, a collection system 3 and a computer 4, wherein:
[0026] The net target 1 is arranged on the flight trajectory of the projectile after it flies out of the muzzle of the gun. Multiple net targets 1 are arranged in parallel, and the distance between adjacent net targets 1 is measured and recorded; each net target 1 includes two parallel channel steels, and a target wire mesh woven from whole target wires is arranged between the channel steels; the mesh size of the target wire mesh is determined according to the size of the projectile, so that the target wire can be cut when the projectile passes through the target wire mesh; the specific weaving form of the target wire mesh is not required, such as parallel arrangement, staggered arrangement, etc.; the net target 1 is fixed in position by a fixing frame;
[0027] Connect the two ends of the target wire in each net target 1 to the test circuit, use the acquisition system 3 to monitor the voltage change at both ends of the detection resistor in the test circuit, and connect the collected voltage signal and the corresponding time to the computer 5;
[0028] After the projectile is fired from the artillery, the target wire mesh in the mesh target 1 will be cut one by one during the flight process, thereby causing the voltage across the detection resistor in the test circuit 2 to change; the distance between adjacent mesh targets 1 and the time when the voltage across the detection resistor changes are used to calculate the speed of the ultra-long-range artillery projectile out of the muzzle at different stages.
[0029] Furthermore, insulation treatment is performed between the channel steel and the target wire in the net target 1 so that there is no conduction between the target wire and the channel steel; for example, multiple connection points can be arranged at intervals on the channel steel, rubber gaskets are arranged at the connection points with the target wire, and the target wire is straightened.
[0030] Furthermore, the target wire is a metal wire, and an insulating layer is provided on the surface of the target wire to prevent the target wire from being connected to an external conductor and affecting the test result.
[0031] Furthermore, the target wires on the same mesh target 1 cannot be short-circuited to avoid a short circuit in the test circuit 2 .
[0032] Optionally, before conducting the muzzle velocity test of the projectile, it is necessary to measure and record the distance between adjacent net targets 1; the distance between adjacent net targets 1 can be the same or different; the distance between adjacent net targets 1 and the arrangement range of the net targets 1 are determined according to the test range. When it is necessary to monitor the flight distance of the projectile for a long time, a large spacing can be used and the number of net targets 1 can be increased. When it is necessary to monitor the flight distance of the projectile for a short time, a small spacing can be used and the number of net targets can be reduced.
[0033] Furthermore, the acquisition system 3 is used to acquire the voltage signal across the detection resistor and record the acquisition time; the acquired information is sent to the computer 4 to calculate the initial velocity of the artillery projectile out of the muzzle.
[0034] Further, the test circuit includes a series resistor, a detection resistor and a power supply, wherein:
[0035] The number of series resistors is consistent with the number of mesh targets 1. The series resistors and detection resistors are connected in series to the power supply, and the acquisition system 3 connects the two ends of the detection resistor; the two ends of the target wire in each mesh target 1 are respectively connected to the two ends of a series resistor.
[0036] Among them, the target wire in each mesh target 1 is connected in parallel at both ends of a series resistor to shunt it; when the target wire mesh in different mesh targets 1 is cut off, the current of the entire test circuit will change, thereby causing the voltage across the detection resistor to change; by obtaining the time when the voltage across the detection resistor changes, that is, the time when the corresponding mesh target 1 is cut off; combined with the distance between the mesh targets 1, the initial velocity of the projectile out of the muzzle can be obtained.
[0037] The initial velocity of the projectile out of the muzzle is calculated as follows:
[0038]
[0039] where s i,i+1 represents the distance between the i-th and i+1-th targets 1; Δt i,i+1 It represents the time difference between the i-th and i+1-th voltage changes at both ends of the detection resistor, v i,i+1 It represents the flight speed of the projectile in the distance between the i and i+1 targets 1 during its flight, i=1, 2,…, N-1; N is the number of targets 1.
[0040] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.
Claims
1. A system for testing the muzzle velocity of an ultra-long-range artillery projectile, characterized in that: It comprises a net target (1), a test circuit (2), a collection system (3) and a computer (4), wherein: The net target (1) is arranged on the flight trajectory of the projectile after it flies out of the gun's muzzle. A plurality of net targets (1) are provided and arranged in parallel. Each net target (1) comprises two parallel channel steels, and a target wire mesh woven from whole target wires is arranged between the channel steels. The net target (1) is fixed in position by a fixing frame. Connecting the two ends of the target wire in each net target (1) to the test circuit, using the acquisition system (3) to monitor the voltage change at the two ends of the detection resistor in the test circuit, and connecting the collected voltage signal and the corresponding time to the computer (5); After the projectile is fired from the artillery, the target wire mesh in the net target (1) will be cut one by one during the flight process, thereby causing the voltage across the detection resistor in the test circuit (2) to change; the speed of the ultra-long-range artillery projectile leaving the muzzle at different stages is calculated by using the distance between adjacent net targets (1) and the time when the voltage across the detection resistor changes.
2. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1 is characterized in that: Insulation treatment is performed between the channel steel and the target wire in the mesh target (1), so that there is no conduction between the target wire and the channel steel.
3. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1 is characterized in that: The mesh size of the target wire mesh is determined by the size of the projectile, so that the target wire can be cut when the projectile passes through the target wire mesh.
4. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1, characterized in that: The target wire is a metal wire, and an insulating layer is provided on the surface of the target wire.
5. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1, characterized in that: The target wires on the same net target (1) cannot be short-circuited to avoid a short circuit in the test circuit (2).
6. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1, characterized in that: Before the muzzle velocity test of the projectile is carried out, the distance between adjacent net targets (1) needs to be measured and recorded; the distance between adjacent net targets (1) can be the same or different.
7. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1 is characterized in that: The acquisition system (3) is used to acquire the voltage signal at both ends of the detection resistor and record the acquisition time; the acquired information is sent to the computer (4) to calculate the initial velocity of the artillery projectile leaving the muzzle.
8. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1, characterized in that: The test circuit comprises a series resistor, a detection resistor and a power supply, wherein: The number of series resistors is consistent with the number of mesh targets (1), the series resistors and detection resistors are connected in series to a power supply, and the acquisition system (3) is connected to both ends of the detection resistor; the two ends of the target wire in each mesh target (1) are respectively connected to the two ends of a series resistor.
9. The ultra-long-range artillery projectile muzzle velocity test system according to claim 1, characterized in that: The initial velocity of the projectile out of the gun muzzle is calculated as follows: where s i,i+1 represents the distance between the i-th and i+1-th targets (1); Δt i,i+1 It represents the time difference between the i-th and i+1-th voltage changes at both ends of the detection resistor, v i,i+1 It represents the flight speed of the projectile in the distance between the i and i+1 net targets (1) during the flight process, i=1, 2, ..., N-1; N is the number of net targets (1).