High Power Laser and Particle Beams, Volume. 32, Issue 5, 055003(2020)

Influence of armature-rail contact surface morphology on starting characteristics of armature

Yingdong Che1,2,3, Weikang Zhao1,2,3, Zhizeng Wang2,3, Wen Tian1,2,3, Youjun Kong1,2,3, Weiqun Yuan2,3, and Ping Yan2,3
Author Affiliations
  • 1University of Chinese Academy of Sciences, Beijing 100190, China
  • 2Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • 3Key Laboratory of Power Electronics and Electric Drive, Chinese Academy of Sciences, Beijing 100190, China
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    Figures & Tables(12)
    Experimental platform
    Three structures of armature
    Typical driver current and contact resistance
    Judging armature startup
    State of the rail after the experiments, the circles represent the starting positions, the arrows represent the directions of motion
    Calculation model of the pre-tightening force
    Schematic diagram of the simulation model
    Current density at t=0.17 ms
    Force condition of armature
    • Table 1. Startup time of armature

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      Table 1. Startup time of armature

      experiment No. startup time/μs
      no groovevertical groovehorizontal groove
      1125162.5175
      2150175187
      3162.5180190
    • Table 2. Main parameters of material for simulation

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      Table 2. Main parameters of material for simulation

      ρ/(kg·m−3E/Pa vδs
      rail8 8301.1×10110.344.0×108
      armature2 7707.1×10100.332.8×108
    • Table 3. Calculation results

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      Table 3. Calculation results

      armature structurearmature startup time/μsthe pre-tightening force/Nelectromagnetic pressure/NFN/N
      with out groove1251 324.45081 832.4
      with vertical grooves162.51 373.15661 939.1
      with horizontal grooves1751 403.16582 061.1
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    Yingdong Che, Weikang Zhao, Zhizeng Wang, Wen Tian, Youjun Kong, Weiqun Yuan, Ping Yan. Influence of armature-rail contact surface morphology on starting characteristics of armature[J]. High Power Laser and Particle Beams, 2020, 32(5): 055003

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    Paper Information

    Category: Pulsed Power Technology

    Received: Sep. 19, 2019

    Accepted: --

    Published Online: Apr. 24, 2020

    The Author Email:

    DOI:10.11884/HPLPB202032.190370

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