增强型电磁轨道炮电枢轨道接触特性研究

doi:10.3969/j.issn.1000-1093.2018.03.005

兵工学报 ›› 2018, Vol. 39 ›› Issue (3): 451-456.doi: 10.3969/j.issn.1000-1093.2018.03.005

增强型电磁轨道炮电枢轨道接触特性研究

王振春¹，鲍志勇¹，曹海要²，刘福才¹，战再吉²，王大正¹

(1.燕山大学工业计算机控制工程河北省重点实验室，河北秦皇岛 066004;2.燕山大学亚稳材料制备技术与科学国家重点实验室，河北秦皇岛 066004)

收稿日期:2017-06-29 修回日期:2017-06-29 上线日期:2018-05-07
作者简介:王振春(1979—), 男, 副研究员，硕士生导师。E-mail:zcwang@ysu.edu.cn
基金资助:
河北省自然科学基金面上项目(E2017203298)

Research on Contact Characteristics of Armature and Rail in Augmented Electromagnetic Railgun

WANG Zhen-chun¹， BAO Zhi-yong¹， CAO Hai-yao²， LIU Fu-cai¹， ZHAN Zai-ji²， WANG Da-zheng¹

(1.Key Lab of Industrial Computer Control Engineering of Hebei Province, Yanshan University, Qinhuangdao 066004, Hebei, China;2.State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China)

Received:2017-06-29 Revised:2017-06-29 Online:2018-05-07

摘要/Abstract

摘要： 为研究增强型电磁轨道炮电枢轨道接触特性，通过实际发射试验得到炮口电压、轨道电流、电枢速度和位移等数据以及发射器机械结构的实际参数。在分析电枢在膛内运动过程的基础上，建立了接触电阻与炮口电压、轨道电流、电枢速度、电枢位移等物理量之间的数学模型。进一步分析了在互感系数不同情况下电枢的接触电阻变化规律。将该变化曲线与试验轨道三维建模模型损伤图形和实际发射试验后轨道图像进行比较，发现轨道烧蚀和摩擦损伤情况随着电枢位移和接触电阻变化呈现烧损、滑动和磨损等典型特征，为预测轨道损伤提供了参考依据。

关键词: 增强型电磁轨道炮, 电枢, 接触电阻, 数学模型, 轨道损伤

Abstract: In order to explore the contact characteristics of armature and rail in augmented electromagnetic railgun, the muzzle voltage, rail current, armature velocity and displacement are obtained by actual launching test. Taking the mechanical structure parameters of launcher into account, a mathematical model among contact resistance, muzzle voltage, rail current, armature speed and displacement is established based on the analysis of the motion process of armature in the bore. The change law of contact resistance under the condition of different mutual inductance coefficients is analyzed. The change curve of contact resistance is compared with the 3D model of the test track and the damage image of rail after the actual launching test, respectively. The comparative results show that the ablation and friction damage of rail show several typical characteristics, such as burning, sliding and abrasion, due to the changes of armature displacement and contact resistance. Key

Key words: augmentedelectromagneticrailgun, armature, contactresistance, mathematicalmodel, raildamage

中图分类号:

TJ866

王振春，鲍志勇，曹海要，刘福才，战再吉，王大正. 增强型电磁轨道炮电枢轨道接触特性研究[J]. 兵工学报, 2018, 39(3): 451-456.

WANG Zhen-chun， BAO Zhi-yong， CAO Hai-yao， LIU Fu-cai， ZHAN Zai-ji， WANG Da-zheng. Research on Contact Characteristics of Armature and Rail in Augmented Electromagnetic Railgun[J]. Acta Armamentarii, 2018, 39(3): 451-456.

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增强型电磁轨道炮电枢轨道接触特性研究

Research on Contact Characteristics of Armature and Rail in Augmented Electromagnetic Railgun

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