Adaptability analysis and optimization design of modular Marx generator in mechanical environment

Xiao Jing; Wang Haiyang; Xie Linshen; Cheng Le; Sun Chuyu; Shi Ling

doi:10.11884/HPLPB202234.210344

Volume 34 Issue 4

Mar. 2022

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Xiao Jing, Wang Haiyang, Xie Linshen, et al. Adaptability analysis and optimization design of modular Marx generator in mechanical environment[J]. High Power Laser and Particle Beams, 2022, 34: 045001. doi: 10.11884/HPLPB202234.210344

Citation:

Xiao Jing, Wang Haiyang, Xie Linshen, et al. Adaptability analysis and optimization design of modular Marx generator in mechanical environment[J]. High Power Laser and Particle Beams, 2022, 34: 045001. doi: 10.11884/HPLPB202234.210344

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Adaptability analysis and optimization design of modular Marx generator in mechanical environment

doi: 10.11884/HPLPB202234.210344

Xiao Jing^{1, 2
,},
Wang Haiyang^{1, 2},
Xie Linshen^{1, 2},
Cheng Le^{1, 2},
Sun Chuyu^{1, 2},
Shi Ling^{1, 2}

1.
Northwest Institute of Nuclear Technology, Xi’an 710024, China
2.
State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Xi’an 710024, China

Received Date: 2021-08-07
Rev Recd Date: 2022-01-11

Available Online: 2022-02-12

Publish Date: 2022-04-15

Abstract

Abstract

To study the adaptability of the modularized Marx generator in mechanical environment, simulation and vibration experiment of the generator are conducted based on the random vibration theory and finite element analysis method. Firstly, the finite element simulation model of an 8-stage Marx generator is established, and the stress concentration positions are identified. Secondly, the finite element model is corrected according to the initial results of shaking table test. Then an optimization scheme is proposed to modify the Marx generator. As a result, the first-order frequency of the Marx generator is increased from 15.4 Hz to 19.7 Hz. It is helpful to reduce the dynamic response in vertical direction and enhance the mechanical environment adaptability. Results show that more attention should be paid to the reliability in vertical direction when a Marx generator is being designed. The connection of the generator is stable in the vibration experiment, and the stresses mainly concentrate on the corner pieces between the generator and the U-shape support plates, the connections between U-shape support plates and side support plates, and the switch junctions, which are the weak points in design.
- Marx generator,
- random vibration,
- finite element analysis,
- optimization design

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References(17)

References

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