Extra-long-distance artillery recoil speed testing system

Abstract

The invention discloses an ultra-long-distance artillery recoil speed testing system, which is characterized in that a pair of U-shaped channel steel is arranged in parallel, a plurality of sections of target wires are arranged between the U-shaped channel steel, the target wires are straightened, the two ends of each target wire are fixed on the pair of U-shaped channel steel, and the target wires are parallel to each other; the U-shaped channel steel is arranged behind the artillery and fixed to the ground through the fixing frame, so that the multiple sections of target wires are located on the track of a rear seat of the artillery. Each section of target wire is connected in parallel to a test circuit, an acquisition system is connected in parallel to two ends of a detection resistor of the test circuit, the voltage change condition of the detection resistor is obtained, and acquired voltage signals and corresponding time are connected to a computer; after artillery shooting, the target wires arranged between the U-shaped steel channels are cut off one by one in the recoil process, so that the voltages at the two ends of the detection resistor in the test circuit are changed; and calculating the recoil speeds of different stages of the recoil process of the ultra-long-distance artillery by using the distance between the adjacent target wires and the change time of the voltage at the two ends of the detection resistor.

Description

Technical Field

[0001] The invention belongs to the technical field of ultra-long-range artillery recoil speed testing, and in particular relates to an ultra-long-range artillery recoil speed testing system. Background Art

[0002] The recoil velocity parameters of ultra-long-range artillery are an important way to evaluate the design effect of artillery. The main methods for testing the recoil velocity of artillery currently carried out are: high-speed camera test method and laser displacement test method; high-speed camera has lens distortion, which will cause measurement errors, and the field of view is limited during the high-speed camera test, and the test can only be completed within a very short distance; the laser displacement test method has a limited test distance and can only perform tracking tests 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 an ultra-long-range artillery recoil speed test system to solve the problem that the ultra-long-range artillery recoil speed test range is limited and the test accuracy is low.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An ultra-long-range artillery recoil speed test system includes a U-shaped channel steel, a target wire, a test circuit, a collection system and a computer, wherein:

[0006] A pair of U-shaped channel steels are arranged in parallel, and multiple target wires are arranged between the U-shaped channel steels. The target wires are straightened and fixed at both ends to the pair of U-shaped channel steels, and the target wires are parallel to each other; the U-shaped channel steels are arranged behind the artillery and fixed to the ground by a fixing frame, so that the multiple target wires are located on the recoil trajectory of the artillery;

[0007] Connect each target wire in parallel to the test circuit, connect the acquisition system in parallel to both ends of the detection resistor of the test circuit, obtain the voltage change of the detection resistor, and connect the collected voltage signal and corresponding time to the computer;

[0008] After the artillery is fired, the recoil process will cut off the target wires arranged between the U-shaped channel steels one by one, causing the voltage across the detection resistor in the test circuit to change; the recoil speed at different stages of the recoil process of the ultra-long-range artillery is calculated by using the distance between adjacent target wires and the time it takes for the voltage across the detection resistor to change.

[0009] Furthermore, insulation treatment is performed between the U-shaped channel steel and the target wire, so that there is no conduction between the target wire and the U-shaped channel steel.

[0010] Furthermore, the target wire is a metal wire, and a surface of the target wire has an insulating layer.

[0011] Furthermore, the length of the U-shaped channel steel and the number of target wire segments match the recoil distance of the artillery, so that the layout range of the target wire along the length direction of the U-shaped channel steel is not less than the actual recoil distance of the artillery.

[0012] Furthermore, before conducting the gun recoil velocity test, the distance between adjacent target wires needs to be measured and recorded; the distance between adjacent target wires may be the same or different.

[0013] 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 artillery recoil speed.

[0014] Further, the test circuit includes a series resistor, a voltage divider resistor, a detection resistor and a power supply, wherein:

[0015] One end of each target wire is connected to one end of a voltage-dividing resistor through a wire, and the other end is connected to the other end of the voltage-dividing resistor after being connected in series with a series resistor and an ammeter through a wire; the series resistor, the detection resistor and the power supply form a detection loop; the acquisition system is connected in parallel to both ends of the detection resistor.

[0016] Furthermore, the velocity of the gun during the entire recoil phase is calculated as follows:

[0017]

[0018] where s i,i+1 Indicates the distance between the i-th and i+1-th target wires; 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 speed in the distance between the i and i+1 target wire segments during the recoil of the gun, i=1,2,…,N-1; N is the number of target wire segments.

[0019] Compared with the prior art, the present invention has the following technical features:

[0020] The present invention designs an ultra-long-range artillery test circuit, and calculates the speed test of the ultra-long-range artillery during the entire recoil process according to the voltage change time of the test circuit and the distance between adjacent target wires. The ultra-long-range artillery recoil speed 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of a system for testing the recoil velocity of an ultra-long-range artillery according to an embodiment of the present invention.

[0022] Explanation of the numbers in the figure: 1 U-shaped channel steel, 2 target wire, 3 test circuit, 4 acquisition system, 5 computer. DETAILED DESCRIPTION

[0023] The ultra-long-range artillery recoil speed test method is used to test the speed of the entire recoil process of ultra-long-range artillery shooting. The ultra-long-range artillery recoil speed 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. When the shooting recoil is large, due to the existence of part gaps, deformations and the flipping movement of the bearing platform during the recoil transmission process, it is difficult to maintain the carrier posture and barrel pointing stably, which seriously affects the carrier stability and continuous shooting accuracy of the ultra-long-range artillery. Based on the ultra-long-range artillery recoil speed test, the content of the present invention is to realize the test of the ultra-long-range artillery recoil speed.

[0024] Referring to the accompanying drawings, the present invention provides an ultra-long-range artillery recoil speed test system, comprising a U-shaped channel steel 1, a target wire 2, a test circuit 3, a collection system 4 and a computer 5, wherein:

[0025] A pair of U-shaped channel steels 1 are arranged in parallel, and multiple target wires 2 are arranged between the U-shaped channel steels 1. The target wires 2 are straightened and fixed at both ends to the pair of U-shaped channel steels 1. The connection between the target wires 2 and the U-shaped channel steels 1 is insulated; the target wires 2 are parallel to each other, and the distance between adjacent target wires 2 is measured; the pair of U-shaped channel steels 1 are arranged behind the artillery and fixed to the ground by a fixing frame, so that the multiple target wires 2 are located on the recoil track of the artillery;

[0026] Each target wire 2 is connected in parallel to the test circuit 3, and the acquisition system 4 is connected in parallel to both ends of the detection resistor of the test circuit 3 to obtain the voltage change of the detection resistor, and the collected voltage signal and the corresponding time are connected to the computer 5;

[0027] After the artillery is fired, the recoil process will cut off the target wires 2 arranged between the U-shaped channel steels 1 one by one, causing the voltage across the detection resistor in the test circuit 3 to change; the recoil speed at different stages of the ultra-long-range artillery recoil process is calculated by using the distance between adjacent target wires 2 and the time when the voltage across the detection resistor changes.

[0028] Furthermore, insulation treatment is performed between the U-shaped channel steel 1 and the target wire 2 so that there is no conduction between the target wire 2 and the U-shaped channel steel 1; for example, a plurality of connection points may be arranged at intervals on the U-shaped channel steel 1, and rubber gaskets may be arranged at the connection points with the target wire 2; the target wire 2 is fixed at the connection points at relative positions on a pair of U-shaped channel steels 1, and the target wire 2 is straightened.

[0029] Furthermore, the target wire 2 is a metal wire, and a surface of the target wire 2 has an insulating layer to prevent the target wire 2 from being connected to an external conductor and affecting the test result.

[0030] Furthermore, the length of the U-shaped channel steel 1 and the number of segments of the target wire 2 match the recoil distance of the artillery, so that the layout range of the target wire 2 along the length direction of the U-shaped channel steel 1 is not less than the actual recoil distance of the artillery; specifically, the recoil test of the artillery can be carried out, and the length of the U-shaped channel steel 1 and the segment degree of the target wire 2 can be adjusted according to the test distance.

[0031] Optionally, before conducting the gun recoil speed test, it is necessary to measure and record the distance between adjacent target wires 2; the distance between adjacent target wires 2 can be the same or different; the distance between adjacent target wires 2 can be adjusted according to the gun recoil distance and actual test requirements. When the recoil distance is long, a large spacing can be used, and when the recoil distance is short, a small spacing can be used.

[0032] Furthermore, the acquisition system 4 is used to acquire the voltage signal across the detection resistor and record the acquisition time; the acquired information is sent to the computer 5 to calculate the artillery recoil speed.

[0033] Further, the test circuit includes a series resistor, a voltage divider resistor, a detection resistor and a power supply, wherein:

[0034] One end of each target wire 2 is connected to one end of a voltage-dividing resistor through a wire, and the other end is connected to the other end of the voltage-dividing resistor after being connected in series with a series resistor and an ammeter through a wire; the series resistor, the detection resistor and the power supply constitute a detection circuit; the acquisition system 4 is connected in parallel to both ends of the detection resistor.

[0035] Among them, a series resistor is connected in series with each section of target wire 2 to avoid short circuit caused by too small resistance of target wire 2; the ammeter can detect the current change of the loop where each target wire 2 is located in real time; when different target wires 2 are cut off, the current of the entire detection loop 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 target wire 2 is cut off; combined with the distance between the target wires 2, the recoil speed of the artillery can be obtained.

[0036] The gun's velocity during the entire recoil phase is calculated as follows:

[0037]

[0038] where s i,i+1 Indicates the distance between the i-th and i+1-th target wires; 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 speed in the distance between the i and i+1 target wire segments during the recoil of the gun, i=1,2,…,N-1; N is the number of target wire segments.

[0039] 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. An ultra-long-range artillery recoil velocity test system, characterized in that: It comprises a U-shaped channel steel (1), a target wire (2), a test circuit (3), a collection system (4) and a computer (5), wherein: A pair of U-shaped channel steels 1 are arranged in parallel, and a plurality of target wires (2) are arranged between the U-shaped channel steels (1). The target wires (2) are straightened and fixed at both ends to the pair of U-shaped channel steels (1), and the target wires (2) are parallel to each other; the U-shaped channel steels (1) are arranged behind the artillery and fixed to the ground by a fixing frame, so that the plurality of target wires (2) are located on the recoil track of the artillery; Each target wire (2) is connected in parallel to a test circuit (3), and a collection system (4) is connected in parallel to two ends of a detection resistor of the test circuit (3), so as to obtain a voltage change of the detection resistor, and the collected voltage signal and corresponding time are connected to a computer (5); After the artillery is fired, the recoil process will cut off the target wires (2) arranged between the U-shaped channel steels (1) one by one, causing the voltage across the detection resistor in the test circuit (3) to change; the recoil speed at different stages of the ultra-long-range artillery recoil process is calculated by using the distance between adjacent target wires (2) and the time when the voltage across the detection resistor changes.

2. The ultra-long-range artillery recoil velocity testing system according to claim 1, characterized in that: Insulation treatment is performed between the U-shaped channel steel (1) and the target wire (2), so that there is no conduction between the target wire (2) and the U-shaped channel steel (1).

3. The ultra-long-range artillery recoil velocity testing system according to claim 1, characterized in that: The target wire (2) is a metal wire, and the surface of the target wire (2) has an insulating layer.

4. The ultra-long-range artillery recoil velocity testing system according to claim 1, characterized in that: The length of the U-shaped channel steel (1) and the number of sections of the target wire (2) match the recoil distance of the gun, so that the layout range of the target wire (2) along the length direction of the U-shaped channel steel (1) is not less than the actual recoil distance of the gun.

5. The ultra-long-range artillery recoil velocity testing system according to claim 1, characterized in that: Before conducting a gun recoil velocity test, the distance between adjacent target wires (2) needs to be measured and recorded; the distance between adjacent target wires (2) may be the same or different.

6. The ultra-long-range artillery recoil velocity testing system according to claim 1, characterized in that: The acquisition system (4) 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 (5) to calculate the artillery recoil speed.

7. The ultra-long-range artillery recoil velocity testing system according to claim 1, characterized in that: The test circuit includes a series resistor, a voltage divider resistor, a detection resistor and a power supply, wherein: One end of each target wire (2) is connected to one end of a voltage-dividing resistor via a wire, and the other end is connected to the other end of the voltage-dividing resistor via a wire after being connected in series with a series resistor and an ammeter; the series resistor, the detection resistor and the power supply form a detection loop; the acquisition system (4) is connected in parallel to both ends of the detection resistor.

8. The ultra-long-range artillery recoil velocity testing system according to claim 1, characterized in that: The gun's velocity during the entire recoil phase is calculated as follows: where s i,i+1 represents the distance between the i-th and i+1-th target wires (2); 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 speed in the distance between the i and i+1 target wires during the recoil of the gun, i=1, 2, ..., N-1; N is the number of target wires (2).

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