High Power Laser and Particle Beams, Volume. 34, Issue 4, 045001(2022)
Adaptability analysis and optimization design of modular Marx generator in mechanical environment
Figures & Tables(15)
Fig. 6. Acceleration curve of frequency sweep before and after the vibration experiment on
Fig. 8. Acceleration power spectral density curve at observation point M10 in horizontal direction
Fig. 9. Structure of the Marx generator before and after optimization
Fig. 10. Monitoring results of the Marx generator in transportation vibration on
Table 1. Parameters of the material
View tableView in ArticleTable 1. Parameters of the material
material Young’s modulus/GPa Poisson ratio density/(kg·m−3) stainless steel 190.0 0.33 8000 glass fiber reinforced plastics 37.2 0.25 2440 MC nylon 31.9 0.40 1150
Table 2. Acceleration response at several points of the Marx generator
View tableView in ArticleTable 2. Acceleration response at several points of the Marx generator
position total root mean square acceleration/g vertical extraction lateral extraction longitudinal extraction U-shape support pole 2.01 1.55 0.99 support board of glass fiber 2.59 1.29 0.50 switch 1.58 0.89 0.23 random load 1.36 0.58 0.37
Table 3. Acceleration response of the Marx generator
View tableView in ArticleTable 3. Acceleration response of the Marx generator
position total root mean square stress/MPa vertical extraction lateral extraction longitudinal extraction swtich connector 32.2 12.6 7.4 segregation board between two modules 9.8 1.3 6.4 angle plate that connects the angle iron and U-shape support pole 6.8 2.3 1.4 U-shape support pole 0.4 0.1 0.2 angle plate that connects the U-shape support pole and support board of glass fiber 13.3 3.8 4.9
Table 4. Random vibration results of the improved 8-stage Marx pulser in vertical direction
View tableView in ArticleTable 4. Random vibration results of the improved 8-stage Marx pulser in vertical direction
testing positions root mean square of random vibration/g magnification factor 1st sweep frequency/Hz before vibration after vibration support board of glass fiber 0.57 2.8 87.8 87.8 angle iron of glass fiber 1.29 6.5 97.9 96.1 U-shape support pole 0.73 3.7 87.8 87.8 switch connector of the 1st module 2.06 10.3 88.6 87.8 switch and capacitor connectors of the 1st module 2.00 10.0 88.6 88.6 switch and capacitor connectors of the 4th module 1.09 5.5 88.6 87.8
Table 5. Mode characteristic comparison before and after improvement of the Marx generator
View tableView in ArticleTable 5. Mode characteristic comparison before and after improvement of the Marx generator
modes frequency/Hz modal descriptions before modification after modification before modification after modification 1st order 15.4 19.7 longitudinal vibration on upper Marx longitudinal vibration on upper Marx 2nd order 26.7 30.7 local vibration in switch local vibration in switch and over all vibration
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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
Paper Information
Category: Pulsed Power Technology
Received: Aug. 7, 2021
Accepted: --
Published Online: Apr. 12, 2022
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