Modal analysis of the 32-stage modular Marx generator

Wang Haiyang; Xiao Jing; Xie Linshen; Wu Wei; Cheng Le; He Xiaoping; Sun Chuyu

doi:10.11884/HPLPB202133.210054

Volume 33 Issue 8

Aug. 2021

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Wang Haiyang, Xiao Jing, Xie Linshen, et al. Modal analysis of the 32-stage modular Marx generator[J]. High Power Laser and Particle Beams, 2021, 33: 085001. doi: 10.11884/HPLPB202133.210054

Citation:

Wang Haiyang, Xiao Jing, Xie Linshen, et al. Modal analysis of the 32-stage modular Marx generator[J]. High Power Laser and Particle Beams, 2021, 33: 085001. doi: 10.11884/HPLPB202133.210054

Wang Haiyang, Xiao Jing, Xie Linshen, et al. Modal analysis of the 32-stage modular Marx generator[J]. High Power Laser and Particle Beams, 2021, 33: 085001. doi: 10.11884/HPLPB202133.210054

Citation:

Wang Haiyang, Xiao Jing, Xie Linshen, et al. Modal analysis of the 32-stage modular Marx generator[J]. High Power Laser and Particle Beams, 2021, 33: 085001. doi: 10.11884/HPLPB202133.210054

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Modal analysis of the 32-stage modular Marx generator

doi: 10.11884/HPLPB202133.210054

Wang Haiyang^{1, 2
,},
Xiao Jing^{1, 2},
Xie Linshen^{1, 2},
Wu Wei^{1, 2},
Cheng Le^{1, 2},
He Xiaoping^{1, 2},
Sun Chuyu^{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: 2021-02-22
Rev Recd Date: 2021-08-02

Available Online: 2021-08-14

Publish Date: 2021-08-15

Abstract

Abstract

The dynamic characteristic parameters of the Marx generator can be obtained by modal analysis. In this paper, the simulation analysis and modal experiment of the 32-stage modular Marx generator are conducted to evaluate its mechanical environment adaptability. Firstly, the finite element simulation model of the modular Marx generator is constructed, and the initial vibration modes are acquired. Secondly, under free boundary condition, the integral modal experiment, local modal experiment and transfer characteristic experiment are conducted respectively. In the end, the integral and local modal parameters are calculated. Results show that the 32-stage modular Marx generator has a first-order torsion at 23.58 Hz; the inherent frequency of local structure of the Marx generator is relatively high; the vibration transmissibility scopes on x, y and z axis are respectively 5−15, 6−10 and 10−35. These conclusions provide reference to design Marx generator in later engineering phase.
- Marx generator,
- random vibration,
- finite element analysis,
- vibration and shock,
- modal analysis

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References(16)

References

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