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单级电磁感应线圈发射器温升研究

熊敏 张亚东 龚宇佳 张虎

熊敏, 张亚东, 龚宇佳, 等. 单级电磁感应线圈发射器温升研究[J]. 强激光与粒子束, 2020, 32: 035003. doi: 10.11884/HPLPB202032.190300
引用本文: 熊敏, 张亚东, 龚宇佳, 等. 单级电磁感应线圈发射器温升研究[J]. 强激光与粒子束, 2020, 32: 035003. doi: 10.11884/HPLPB202032.190300
Xiong Min, Zhang Yadong, Gong Yujia, et al. Study on temperature rise of electromagnetic coil launcher[J]. High Power Laser and Particle Beams, 2020, 32: 035003. doi: 10.11884/HPLPB202032.190300
Citation: Xiong Min, Zhang Yadong, Gong Yujia, et al. Study on temperature rise of electromagnetic coil launcher[J]. High Power Laser and Particle Beams, 2020, 32: 035003. doi: 10.11884/HPLPB202032.190300

单级电磁感应线圈发射器温升研究

doi: 10.11884/HPLPB202032.190300
基金项目: 国家自然科学基金项目(51977152);湖北省自然科学基金项目(2019CFB430)
详细信息
    作者简介:

    熊 敏(1994—),男,硕士,从事电磁发射技术研究;1376758757@qq.com

  • 中图分类号: TM15

Study on temperature rise of electromagnetic coil launcher

  • 摘要: 同步感应式线圈型电磁发射器主要采用脉冲电流对线圈直接供电,其实际工作过程中电枢和线圈会产生温升,这是当前制约线圈发射器向小型化、高速发展的一个主要因素。本文通过建立电磁线圈的温升模型,对于单次触发的情况,分别利用Comsol和自编程序Coilgun进行计算,并搭建相应的试验平台进行验证。采用直接耦合方式的Comsol计算结果最为准确,也能考虑材料参数随温度的变化。仿真得到电枢的温升大约为4.2 ℃,线圈最大温升为7.7 ℃。由于热电偶温度传感器的测量延迟性与采样频率的限制,电枢温度试验曲线未能测量到仿真曲线中出现的温度最大值点,可记录到整个试验过程中温度变化曲线,其变化形势以及最终稳定的温度与仿真的基本一致,误差最大为6.1%,说明了仿真的准确性。为后续进行多级线圈连续发射奠定基础。
  • 图  1  k级同步感应线圈发射器的集总参数模型

    Figure  1.  Lumped parameter model of class k synchronous induction coil transmitter

    图  2  单级电磁感应线圈发射器模型及相应参数

    Figure  2.  single stage electromagnetic induction coil transmitter model and corresponding parameters

    图  3  线圈和电枢温升变化以及电枢速度曲线

    Figure  3.  Temperature rise of coil and armature and armature speed curve

    图  4  线圈发射器运动场计算结果

    Figure  4.  Calculation results of motion field of coil launcher

    图  5  单级线圈发射器结果(t=0.016 s)

    Figure  5.  Single-stage coil emitter results (t= 0.016 s)

    图  6  特定单元温度随时间变化图

    Figure  6.  Temperature variation of a specific unit over time

    图  7  试验原理图

    Figure  7.  Test capacitor discharge circuit diagram

    图  8  温度采集部分

    Figure  8.  Temperature acquisition section

    图  9  电枢中温度传感器布置图

    Figure  9.  Layout of temperature sensors

    图  10  线圈温度传感器布置图与实物图

    Figure  10.  Arrangements and photo of coil temperature sensors

    图  11  脉冲放电波形

    Figure  11.  Pulse discharge waveforms

    图  12  模型温度测量结果

    Figure  12.  Model temperature measurements

    表  1  电磁感应线圈发射器参数

    Table  1.   Electromagnetic induction coil launcher parameters

    internal diameter/mmthickness/mmlength/mmturnsinternal diameter/mmlength/mmcapacitance/mFvoltage/V
    armaturecoilpower supply
    37.51010026606021 300
    下载: 导出CSV

    表  2  单级电磁感应线圈发射器结果对比

    Table  2.   Comparison of single stage electromagnetic induction coil transmitter results

    methodcomsol multiphysical field simulationcurrent wire model method
    outlet velocity/(m·s-1)8.2868.827
    maximum speed/(m·s-1)8.5699.644
    maximum coil temperature/℃(t=0.016 s)28.0328.29
    armature maximum temperature/℃(t=0.016 s)24.1024.23
    maximum coil temperature/℃(whole process)28.0528.29
    armature maximum temperature/℃(whole process)25.4124.23
    下载: 导出CSV

    表  3  单级感应线圈发射器单次脉冲放电试验结果(t=100 s)

    Table  3.   Single pulse discharge test results of single-stage induction coil transmitter (t=100 s)

    test temperature/℃simulation temperature/℃error/%
    armature tail outer side13.8513.9260.55
    inside armature tail13.7813.860.58
    1 cm from armature tail13.9113.9470.27
    coil wire17.2518.386.1
    下载: 导出CSV
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  • 被引次数: 0
出版历程
  • 收稿日期:  2019-08-15
  • 修回日期:  2019-11-11
  • 刊出日期:  2020-02-10

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