• High Power Laser and Particle Beams
  • Vol. 34, Issue 4, 045001 (2022)
Jing Xiao1、2, Haiyang Wang1、2, Linshen Xie1、2, Le Cheng1、2, Chuyu Sun1、2, and Ling Shi1、2
Author Affiliations
  • 1Northwest Institute of Nuclear Technology, Xi’an 710024, China
  • 2State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Xi’an 710024, China
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    DOI: 10.11884/HPLPB202234.210344 Cite this Article
    Jing Xiao, Haiyang Wang, Linshen Xie, Le Cheng, Chuyu Sun, Ling Shi. Adaptability analysis and optimization design of modular Marx generator in mechanical environment[J]. High Power Laser and Particle Beams, 2022, 34(4): 045001 Copy Citation Text show less
    Structure of the 8-stage Marx generator
    Fig. 1. Structure of the 8-stage Marx generator
    Structure of one stage module
    Fig. 2. Structure of one stage module
    First mode of the 8-stage Marx generator
    Fig. 3. First mode of the 8-stage Marx generator
    Second mode of the 8-stage Marx generator
    Fig. 4. Second mode of the 8-stage Marx generator
    Schematic diagram of the vibration experiment system
    Fig. 5. Schematic diagram of the vibration experiment system
    Acceleration curve of frequency sweep before and after the vibration experiment on x axis
    Fig. 6. Acceleration curve of frequency sweep before and after the vibration experiment on x axis
    Broken angle iron after random vibration experiment
    Fig. 7. Broken angle iron after random vibration experiment
    Acceleration power spectral density curve at observation point M10 in horizontal direction
    Fig. 8. Acceleration power spectral density curve at observation point M10 in horizontal direction
    Structure of the Marx generator before and after optimization
    Fig. 9. Structure of the Marx generator before and after optimization
    Monitoring results of the Marx generator in transportation vibration on y axis
    Fig. 10. Monitoring results of the Marx generator in transportation vibration on y axis
    materialYoung’s modulus/GPaPoisson ratiodensity/(kg·m−3)
    stainless steel190.00.338000
    glass fiber reinforced plastics37.20.252440
    MC nylon31.90.401150
    Table 1. Parameters of the material
    positiontotal root mean square acceleration/g
    vertical extractionlateral extractionlongitudinal extraction
    U-shape support pole2.011.550.99
    support board of glass fiber2.591.290.50
    switch1.580.890.23
    random load1.360.580.37
    Table 2. Acceleration response at several points of the Marx generator
    positiontotal root mean square stress/MPa
    vertical extractionlateral extractionlongitudinal extraction
    swtich connector32.212.67.4
    segregation board between two modules 9.81.36.4
    angle plate that connects the angle iron and U-shape support pole 6.82.31.4
    U-shape support pole0.40.10.2
    angle plate that connects the U-shape support pole and support board of glass fiber13.33.84.9
    Table 3. Acceleration response of the Marx generator
    testing positionsroot mean square of random vibration/gmagnification factor 1st sweep frequency/Hz
    before vibrationafter vibration
    support board of glass fiber0.572.887.887.8
    angle iron of glass fiber1.296.597.996.1
    U-shape support pole0.733.787.887.8
    switch connector of the 1st module 2.0610.388.687.8
    switch and capacitor connectors of the 1st module 2.0010.088.688.6
    switch and capacitor connectors of the 4th module 1.095.588.687.8
    Table 4. Random vibration results of the improved 8-stage Marx pulser in vertical direction
    modesfrequency/Hzmodal descriptions
    before modificationafter modificationbefore modificationafter modification
    1st order 15.419.7longitudinal vibration on upper Marxlongitudinal vibration on upper Marx
    2nd order 26.730.7local vibration in switchlocal vibration in switch and over all vibration
    Table 5. Mode characteristic comparison before and after improvement of the Marx generator
    Jing Xiao, Haiyang Wang, Linshen Xie, Le Cheng, Chuyu Sun, Ling Shi. Adaptability analysis and optimization design of modular Marx generator in mechanical environment[J]. High Power Laser and Particle Beams, 2022, 34(4): 045001
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