CAJ | 학술논문

基于多场耦合理论，推导出考虑烧蚀的电磁场-温度场耦合的物理方程。利用 APDL 语言编制相应程序，分析了在考虑电枢烧蚀条件下的电流密度和温度的分布状况。电枢三维烧蚀分布与 IAT试验结果分布进行对比结果表明块状电枢在导轨间运动过程中，烧蚀首先发生在导轨与电枢接触面前端边缘。在仅考虑焦耳热情况下，电枢前端烧蚀分布比较一致，电枢两侧边缘差别较大；考虑烧蚀和不考虑烧蚀情况下电磁场和温度场分布存在很大不同。此研究为揭示电磁驱动装置烧蚀机理奠定理论基础。
기우다장우합이론，추도출고필소식적전자장-온도장우합적물리방정。이용 APDL 어언편제상응정서，분석료재고필전추소식조건하적전류밀도화온도적분포상황。전추삼유소식분포여 IAT시험결과분포진행대비결과표명괴상전추재도궤간운동과정중，소식수선발생재도궤여전추접촉면전단변연。재부고필초이열정황하，전추전단소식분포비교일치，전추량측변연차별교대；고필소식화불고필소식정황하전자장화온도장분포존재흔대불동。차연구위게시전자구동장치소식궤리전정이론기출。
Based on multi-field coupling theory (assuming that the armature surface wear was mostly melted wear),electromagnetic-temperature field coupled physics equations were derived by use of considering armature erosion.APDL language was used to work out the correspond-ing program,and electromagnetic field and temperature field distribution of armature were ana-lyzed with the help of considering the armature three-dimensional erosion.Finally,armature three-dimensional erosion distribution was compared with the distribution of IAT armature test results,and the results showed that:in the movement of block armature,the erosion firstly occurs in the front contact surface between the guide rail and the armature.Under the condi-tion of only considering the Joule heat,the armature was distributed more consistent,and the difference between the edges on both sides of the armature was larger;under the conditions of consi-dering and not considering the erosion,the distributions of electromagnetic field and tem-perature field were very different.This research can provide theoretical basis for revealing the erosion mechanism of the electromagnetic rail gun.