A high-speed flying body triboelectricity experiment device and a testing method

Abstract

The application discloses a high-speed flying body friction electrification experiment device and a testing method, and relates to the technical field of electrostatics. The device comprises, in sequence, a projectile ejection device, a projectile flight track, a first Faraday cylinder, a projectile friction zone and a second Faraday cylinder. The projectile ejection device is used for ejecting a measured projectile. The projectile flight track, the first Faraday cylinder, the projectile friction zone and the second Faraday cylinder are all arranged on the flight track of the measured projectile. The surface of the measured projectile is wrapped with a measured material. The projectile flight track is used for accelerating the measured projectile. The accelerated measured projectile passes through the first Faraday cylinder, the projectile friction zone and the second Faraday cylinder in sequence. The first Faraday cylinder and the second Faraday cylinder are both used for sensing the electric charge of the measured projectile. The projectile friction zone is used for carrying out a friction experiment on the measured material. The application can complete the friction electrification law of different materials in different flight states.

Description

Technical Field

[0001] This invention relates to the field of electrostatic technology, and in particular to an experimental apparatus and testing method for triboelectric charging of a high-speed flying body. Background Technology

[0002] When an aircraft flies at high speed, it inevitably collides and rubs with surrounding materials, thus acquiring static electricity. When the static electricity level of the aircraft reaches a certain level, electrostatic discharge (ESD) will occur. The discharge energy will produce complex electrostatic effects on the airborne equipment through conduction and radiation coupling, thereby affecting the flight safety of the aircraft.

[0003] To investigate the impact of electrostatic discharge (ESD) generated by high-speed flying objects on airborne electronic equipment, it is essential to first study the characteristics of electrostatic charge levels and polarity. During high-speed flight, the surface skin material of the flying object undergoes triboelectric charging with materials such as ice crystals and gravel. The amount of static electricity accumulated after triboelectric charging depends on the surface material of the flying object, its flight speed, and the impact particles (ice crystals, gravel, etc.). Since actual flight testing of the flying object is not feasible, a ground-based simulation experimental device needs to be designed to study the triboelectric charging characteristics during high-speed flight. Summary of the Invention

[0004] The purpose of this invention is to provide an experimental device and testing method for triboelectric charging of high-speed flying bodies, so as to complete the triboelectric charging law of different materials under different flight conditions.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A high-speed flying body triboelectric experimental device includes: a projectile ejection device, a projectile flight track, a first Faraday cylinder, a projectile friction zone, and a second Faraday cylinder arranged sequentially.

[0007] The projectile ejection device is used to eject the projectile to be tested; the projectile flight track, the first Faraday cylinder, the projectile friction zone, and the second Faraday cylinder are all arranged on the flight track of the projectile to be tested; the surface of the projectile to be tested is covered with the material to be tested; the projectile flight track is used to accelerate the projectile to be tested; after acceleration, the projectile to be tested passes sequentially through the first Faraday cylinder, the projectile friction zone, and the second Faraday cylinder; the first Faraday cylinder and the second Faraday cylinder are both used to sense the charge of the projectile to be tested; the projectile friction zone is used to conduct a friction experiment on the material to be tested.

[0008] Optionally, the projectile ejection device is a gas railgun or an electromagnetic gun.

[0009] Optionally, the high-speed flying body triboelectric experimental device further includes a velocity tester, which is disposed between the projectile flight track and the first Faraday cylinder; the velocity tester is used to monitor the velocity of the projectile after acceleration.

[0010] Optionally, the high-speed flying body triboelectric experimental device further includes a first electrostatic tester and a second electrostatic tester;

[0011] The first electrostatic tester is connected to the first Faraday cylinder; the second electrostatic tester is connected to the second Faraday cylinder.

[0012] Optionally, the high-speed flying body triboelectric experimental device further includes an oscilloscope; the oscilloscope is connected to the first electrostatic tester and the second electrostatic tester respectively.

[0013] Optionally, the projectile friction zone is filled with impact particles; the size of the impact particles is on the order of micrometers; and the concentration of the projectile friction zone is on the order of 1 g / m³. 3 .

[0014] Optionally, the impacting particles include ice crystals and gravel.

[0015] This invention also provides a testing method for a high-speed flying body triboelectric experimental device, wherein the high-speed flying body triboelectric experimental device is used, and the testing method includes:

[0016] The projectile ejection device ejects the projectile to be tested;

[0017] The projectile's flight trajectory accelerates the tested projectile;

[0018] The charge of the tested projectile after being accelerated by the first Faraday cylinder;

[0019] A friction test is conducted on the test projectile in the projectile friction zone;

[0020] The charge of the tested projectile after induced friction by the second Faraday cylinder.

[0021] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0022] This invention comprises: a projectile ejection device, a projectile flight track, a first Faraday cylinder, a projectile friction zone, and a second Faraday cylinder arranged sequentially; the projectile ejection device ejects a projectile to be tested; the projectile flight track, the first Faraday cylinder, the projectile friction zone, and the second Faraday cylinder are all arranged on the projectile flight track; the surface of the projectile is coated with a test material; the projectile flight track accelerates the projectile; after acceleration, the projectile passes sequentially through the first Faraday cylinder, the projectile friction zone, and the second Faraday cylinder; both the first and second Faraday cylinders are used to sense the charge of the projectile; the projectile friction zone is used to conduct a friction experiment on the test material. By coating the surface of the projectile with different test materials, the triboelectric charging of different materials is tested, thereby achieving experimental testing of the triboelectric charging law of different surface materials of different aircraft. The triboelectric charging law of the aircraft surface with different substances is achieved through the projectile friction zone. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the structure of the high-speed flying body triboelectric experimental device provided by the present invention.

[0025] Symbol explanation:

[0026] Projectile ejection device-1, projectile flight track-2, velocity tester-3, projectile under test-4, first Faraday cylinder-5, projectile friction zone-6, second Faraday cylinder-7, first electrostatic tester-8, oscilloscope-9, second electrostatic tester-10. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The purpose of this invention is to provide an experimental device and testing method for triboelectric charging of high-speed flying bodies, so as to complete the triboelectric charging law of different materials under different flight conditions.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 As shown, the present invention provides a high-speed flying body triboelectric experimental device, comprising: a projectile ejection device 1, a projectile flight track 2, a first Faraday cylinder 5, a projectile friction zone 6, and a second Faraday cylinder 7 arranged sequentially.

[0031] The projectile ejection device 1 is used to eject the projectile 4 to be tested; the projectile flight track 2, the first Faraday cylinder 5, the projectile friction zone 6, and the second Faraday cylinder 7 are all arranged on the flight track of the projectile 4 to be tested; the surface of the projectile 4 to be tested is covered with the material to be tested; the projectile flight track 2 is used to accelerate the projectile 4 to be tested; after acceleration, the projectile 4 to be tested passes through the first Faraday cylinder 5, the projectile friction zone 6, and the second Faraday cylinder 7 in sequence; the first Faraday cylinder 5 and the second Faraday cylinder 7 are both used to sense the charge of the projectile 4 to be tested; the projectile friction zone 6 is used to conduct a friction experiment on the material to be tested.

[0032] The projectile ejection device 1 is a gas railgun or an electromagnetic gun. The projectile ejection device 1 is used to eject the test projectile 4 at high speed, so that the projectile has a sufficient initial velocity, and different flight speeds can be set. This function can be achieved by a gas railgun or an electromagnetic gun, which can make the projectile speed reach Mach 1 or higher.

[0033] Projectile flight track 2, used in conjunction with a gas railgun or electromagnetic railgun, aims to accelerate the projectile. The projectile accelerates within the flight track to reach the desired speed. Projectiles encasing the test material: Different types of surface materials from various aircraft are wrapped around the projectile's surface to test the triboelectricity of these materials. The encased test material is the test object, enabling testing of surface materials from various types of aircraft. The material type can be changed depending on the aircraft being tested.

[0034] The high-speed flying body triboelectric experimental device also includes a velocity tester 3, which is set between the projectile flight track 2 and the first Faraday cylinder 5; the velocity tester 3 is used to monitor the velocity of the projectile 4 after acceleration.

[0035] The high-speed flying body triboelectric experimental device also includes a first electrostatic tester 8 and a second electrostatic tester 10; the first electrostatic tester 8 is connected to the first Faraday cylinder 5; and the second electrostatic tester 10 is connected to the second Faraday cylinder 7.

[0036] The high-speed flying body triboelectric experimental device also includes an oscilloscope 9; the oscilloscope 9 is connected to the first electrostatic tester 8 and the second electrostatic tester 10 respectively.

[0037] A Faraday cylinder, an electrostatic tester, and an oscilloscope 9 together form a testing system to measure the electrostatic charge of a flying projectile. The Faraday cylinder senses the charge passing through it, thus measuring the electrostatic quantity of the charged material. The Faraday cylinder is connected to the electrostatic tester, which in turn is connected to the oscilloscope 9 to measure the electrostatic quantity. Two testing systems are used, each employing two Faraday cylinders and two electrostatic testers, sharing a single oscilloscope 9. The Faraday cylinder is hollow and placed along the trajectory of the projectile; the projectile passes through the Faraday cylinder to complete the test.

[0038] The projectile friction zone 6 is filled with impact particles; the size of the impact particles is on the order of micrometers; the concentration of the projectile friction zone 6 is on the order of 1 g / m³. 3 The impact particles include ice crystals and gravel. The projectile friction zone 6 is used to add ice crystals, gravel, and other substances to conduct friction experiments between the surface material of the aircraft and different materials. The added ice crystals and gravel must be small enough, controlled at the micrometer level, and suspended in the friction zone, with a concentration controlled at 1 g / m³. 3 The magnitude can fluctuate up and down, enabling the testing of triboelectric charging of aircraft surface materials with different concentrations of suspended particles.

[0039] The device provided by this invention can complete ground simulation tests of triboelectric charging of high-speed flying bodies, thereby obtaining the triboelectric charging law and providing technical support for electrostatic safety analysis of high-speed flying bodies.

[0040] This invention also provides a testing method for a high-speed flying body triboelectricity experimental device. The testing method utilizes the aforementioned high-speed flying body triboelectricity experimental device and includes the following steps:

[0041] The projectile ejection device 1 ejects the projectile 4 to be tested. The projectile flight trajectory 2 accelerates the projectile 4. The first Faraday cylinder 5 senses the charge of the accelerated projectile 4. The projectile friction zone 6 conducts a friction test on the projectile 4. The second Faraday cylinder 7 senses the charge of the rubbed projectile 4.

[0042] During testing, a gas railgun system or electromagnetic railgun system is used in conjunction with a projectile flight trajectory 2 to launch a projectile coated with the test material at a certain speed. A velocity tester 3 is used to test and record the projectile's flight speed. The projectile first passes through a horizontal Faraday cylinder, and an electrostatic tester and an oscilloscope 9 are used to monitor the charge of the high-speed projectile as it exits the cylinder. Then, the projectile flies through a friction zone filled with ice crystals or gravel, and the charge changes due to friction between the projectile and the ice crystals or gravel in this area. It passes through the Faraday cylinder again, and the charge after passing through the friction zone is measured using an electrostatic tester and an oscilloscope 9. By comparing and analyzing the charge measured before and after, the electrostatic charge generated after the material rubs against different substances can be obtained, thus revealing the electrostatic charging law of different materials rubbing against different substances at different flight speeds.

[0043] This invention uses a gas railgun or electromagnetic gun in conjunction with a projectile flight track 2 to accelerate the projectile, enabling control of different projectile flight speeds, with a maximum flight speed exceeding 1 Ma. It can also perform simulated experimental testing of triboelectric charging on the surface material of high-speed flying bodies.

[0044] This invention employs a method of wrapping the material to be tested on the surface of a projectile, which can be used to test the triboelectricity of different materials, thereby enabling experimental testing of the triboelectricity laws of different surface materials on different aircraft.

[0045] The present invention uses a velocity tester 3, which can monitor the flight speed of the projectile, thereby accurately obtaining the flight speed of the projectile.

[0046] This invention employs a testing system composed of a Faraday cylinder, an electrostatic tester, and an oscilloscope 9. The charge of the projectile is monitored after it leaves the track and after it passes through the friction zone. This eliminates the influence of the friction between the track and the projectile on the test results, thereby enabling accurate testing of the charge of different materials after friction with substances such as ice crystals and gravel.

[0047] This invention employs a projectile friction zone 6, and adds different concentrations of substances such as ice crystals, water mist, and gravel to this zone. This allows the surface of the aircraft to be charged by friction with different substances, thereby obtaining the electrostatic charging characteristics of the aircraft in different flight states. When flying through clouds, the aircraft is charged by friction with ice crystals and water mist, and when flying at low altitudes, the aircraft is charged by friction with gravel, etc.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A high-speed flying body tribocharging experiment device characterized by comprising: The high-speed flying body friction electrification experimental device comprises a projectile ejection device, a projectile flight track, a first Faraday cylinder, a projectile friction area and a second Faraday cylinder which are sequentially arranged. The projectile ejection device is used for ejecting a measured projectile; the projectile flight track, the first Faraday cylinder, the projectile friction area and the second Faraday cylinder are arranged on the flight track of the measured projectile; the surface of the measured projectile is wrapped with a measured material; the projectile flight track is used for accelerating the measured projectile; the accelerated measured projectile sequentially passes through the first Faraday cylinder, the projectile friction area and the second Faraday cylinder; the first Faraday cylinder and the second Faraday cylinder are used for sensing the electric charge of the measured projectile; and the projectile friction area is used for carrying out a friction experiment on the measured material. The high-speed flying body friction electrification experimental device further comprises a first electrostatic tester and a second electrostatic tester; the first electrostatic tester is connected with the first Faraday cylinder; and the second electrostatic tester is connected with the second Faraday cylinder. The projectile friction area is adopted, and different concentrations of ice crystals, water mist and sand are added in the area, so that the friction electrification law of the surface of the flying body with different materials is completed, and the electrostatic charging law of the flying body in different flight states is obtained; the ice crystals and water mist are rubbed when penetrating clouds, and the sand is rubbed when flying at low altitude. The projectile friction zone is filled with collision particles; the size of the collision particles is in the order of microns; the concentration of the projectile friction zone is in the order of 1g / m 3 ; The projectile ejection device is a gas track gun or an electromagnetic gun.

2. The high-speed flying body tribo-dielectric experiment device according to claim 1, characterized in that, The high-speed flying body friction electrification experimental device further comprises a speed tester which is arranged between the projectile flight track and the first Faraday cylinder; and the speed tester is used for monitoring the speed of the accelerated measured projectile.

3. The apparatus according to claim 1, wherein The high-speed flying body friction electrification experimental device further comprises an oscilloscope which is connected with the first electrostatic tester and the second electrostatic tester.

4. The high-speed flying body tribo-dielectric experiment device according to claim 1, wherein The collision particles comprise ice crystals and sand.

5. The high-speed flying body tribo-dielectric experiment device according to claim 1, wherein The high-speed flying body friction electrification experimental device testing method applies the high-speed flying body friction electrification experimental device according to any one of claims 1-5, and the high-speed flying body friction electrification experimental device testing method comprises the following steps:

6. A test method for a high-speed flying body tribocharging experiment device, characterized by, The projectile ejection device ejects a measured projectile; The projectile flight track accelerates the measured projectile; The first Faraday cylinder senses the electric charge of the accelerated measured projectile; The projectile friction area carries out a friction experiment on the measured projectile; The second Faraday cylinder senses the electric charge of the rubbed measured projectile. ​

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