Modeling method of electromagnetic rail launcher

A launcher, electromagnetic technology, applied in the direction of instruments, electrical digital data processing, special data processing applications, etc., can solve the problem that the modeling method of electromagnetic orbital launchers has not received enough attention and application

Active Publication Date: 2014-12-03
BEIJING INST OF TECH SPECIAL ELECTROMECHANICAL
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  • Abstract
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  • Application Information

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Problems solved by technology

Due to the above reasons, the above-mentioned electromagnetic rail launcher modeling method has not received enough attention and application

Method used

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  • Modeling method of electromagnetic rail launcher
  • Modeling method of electromagnetic rail launcher
  • Modeling method of electromagnetic rail launcher

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Embodiment Construction

[0070] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0071] Such as figure 1 The modeling method of an electromagnetic track launcher is shown as follows:

[0072] Simultaneously realize the matching of physical fields including electromagnetic field, temperature field, stress field and armature velocity in the prototype and model, then the similar constants of each physical quantity need to meet the following conditions:

[0073] (1) Geometric similarity constant:

[0074] The geometric shape of the prototype and the model emitter is similar, and there is a k-fold relationship in scale;

[0075] (2) Electromagnetic cor...

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Abstract

The invention relates to a modeling method of an electromagnetic rail launcher. The modeling method of the electromagnetic rail launcher simultaneously achieves matching of physical fields and armature speeds of a prototype and a model. According to the method, all the physical quantity similarity constants need to meet the conditions including that the geometric similarity constant is k; (2) the electromagnetism-related similarity constants include that the current density similarity constant is 1 / k and meanwhile the conductivity similarity constant is 1 / k without change of magnetic conductivity; (3) the heat-related similarity constants include that the thermal conductivity similarity constant is k, the unit volume heat capacity similarity constant is 1; the time and kinematics-related similarity constants include that the time similarity constant is k, the density and speed similarity constant is 1. The modeling method of the electromagnetic rail launcher achieves matching with kinematical equation analysis results and similarity of electric fields, and meanwhile, achieves matching of the physical fields of the armature speeds simultaneously, effectively simulates speed-associated physical phenomena, requires simple materials, is easy to implement and can guarantee similarity of temperature fields of a model launcher and a prototype launcher.

Description

technical field [0001] The invention relates to the technical field of electromagnetic launch, in particular to a modeling method of an electromagnetic track launcher. Background technique [0002] The main part of the electromagnetic rail launcher consists of two parallel rails and an armature that is in good contact with the rails and can slide freely along the rails. When power is applied to the rear ends of the two rails, the two rails and the armature conduct the drive current as part of the circuit. The armature is accelerated along the track by the ampere force, so as to obtain high speed. [0003] In recent years, electromagnetic orbital launch technology has developed the fastest in the field of electromagnetic launch technology. Because of its wide application prospects and important military significance, it has attracted widespread attention from various military powers. At present, it is generally in the stage of researching key technologies such as launch tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 李军金龙文
Owner BEIJING INST OF TECH SPECIAL ELECTROMECHANICAL
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