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An Electromagnetic Measuring Method of Projectile Velocity During Impact and Squeeze of Countersunk Projectile

A measurement method, electromagnetic technology, applied in the direction of electrical digital data processing, design optimization/simulation, instruments, etc., to achieve the effect of reducing the inherent error of the system, simplifying the eddy current effect, and high accuracy of calculation results

Active Publication Date: 2021-07-13
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At the same time, the electromagnetic measurement system has eddy current effects and nonlinearities caused by magnetic saturation in the measurement of metal gun cases and projectiles. The accuracy and quick response of medium projectile velocity measurement have a direct impact on

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  • An Electromagnetic Measuring Method of Projectile Velocity During Impact and Squeeze of Countersunk Projectile
  • An Electromagnetic Measuring Method of Projectile Velocity During Impact and Squeeze of Countersunk Projectile
  • An Electromagnetic Measuring Method of Projectile Velocity During Impact and Squeeze of Countersunk Projectile

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Embodiment Construction

[0046] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0047] The present invention is an electromagnetic method for measuring projectile velocity during the impact and extrusion process of countersunk projectile, comprising the following steps:

[0048] S1. Establish a simulation test system and determine the simulation test conditions;

[0049] The simulation test system includes a c...

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Abstract

The invention discloses an electromagnetic method for measuring the projectile velocity during the impact and extrusion process of a countersunk projectile. The electromagnetic theory and dynamics theory conforming to the basic physical principles are adopted, and the functional relationship between the physical parameter and the temperature and the magnetic field strength is considered at the same time. By inputting the material parameters, the eddy current effect of the gun box is effectively simplified, and it is equivalent to the circular current that has a decisive effect on the velocity measurement, and the system error is significantly reduced by using the multi-interval measurement method. The projectile velocity calculated by the invention is highly consistent with the design requirements, thus proving the effectiveness of the inventive method. The calculated projectile velocity can be used to objectively evaluate the combustion characteristics and subsequent ballistic characteristics of the countersunk projectile during impact and extrusion.

Description

technical field [0001] The invention belongs to the technical field of modern high-performance artillery design, and in particular relates to an electromagnetic measurement method for projectile velocity during the impact and extrusion process of countersink projectiles. Background technique [0002] As a new firing principle artillery, countersunk ammunition has reduced volume and weight while improving overall performance by 30% compared with conventional ammunition. At the same time, the cost of countersunk ammunition is relatively low and it is not easy to be damaged. Therefore, it has attracted widespread attention at home and abroad. There are different point fire transmission structures for submersible projectiles at home and abroad, such as laser ignition, plasma ignition, ignition device ignition, explosive network ignition tube and LVD central fire transmission tube, etc. Most of them are in the experimental research and development stage, and a few are put into for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F119/14
Inventor 李兴文杨伟鸿刘毅陈立樊浩
Owner XI AN JIAOTONG UNIV
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