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Simulation on Dynamic Characteristics of Electromagnetic Coil Launcher with Catapult Coil Based on Field-Circuit Coupling

Huijun Wang

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Abstract

In order to investigate the dynamic characteristics of the electromagnetic coil launcher with catapult coil(EMCLCC),a 2-D mathematical model of field-circuit coupling of the EMCLCC based on T-Ω is built.Field-circuit coupling model of the EMCLCC is calculated with Newton-Raphson algorithm.The variation laws of the loop current,force acting on the armature,velocity and displacement of the armature with the time are obtained.It can be seen that,compared with drive coil,the current peak in catapult coil is much higher,and the force effect on the armature is much greater,so the magnetic coupling between catapult coil and armature is more compact.

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What this paper is about

In order to investigate the dynamic characteristics of the electromagnetic coil launcher with catapult coil(EMCLCC),a 2-D mathematical model of field-circuit coupling of the EMCLCC based on T-Ω is built.Field-circuit coupling model of the EMCLCC is calculated with Newton-Raphson algorithm.The variation laws of the loop current,force acting on the armature,velocity and displacement of the armature with the time are obtained.It can be seen that,compared with drive coil,the current peak in catapult coil is much higher,and the force effect on the armature is much greater,so the magnetic coupling between catapult coil and armature is more compact.

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Available abstract

In order to investigate the dynamic characteristics of the electromagnetic coil launcher with catapult coil(EMCLCC),a 2-D mathematical model of field-circuit coupling of the EMCLCC based on T-Ω is built.Field-circuit coupling model of the EMCLCC is calculated with Newton-Raphson algorithm.The variation laws of the loop current,force acting on the armature,velocity and displacement of the armature with the time are obtained.It can be seen that,compared with drive coil,the current peak in catapult coil is much higher,and the force effect on the armature is much greater,so the magnetic coupling between catapult coil and armature is more compact.

Key concepts: Armature (electrical engineering), Electromagnetic coil, Magnetic field, Coupling (piping), Physics, Engineering, Electrical engineering, Acoustics

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Simulation on Dynamic Characteristics of Electromagnetic Coil Launcher with Catapult Coil Based on Field-Circuit Coupling — Research Paper | ScholarLens