Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Zizheng, Gong"'
Autor:
Wenjin Liu, Qingming Zhang, Renrong Long, Zizheng Gong, Ren Jiankang, Xin Hu, Siyuan Ren, Qiang Wu, Guangming Song
Publikováno v:
Defence Technology, Vol 32, Iss , Pp 89-103 (2024)
The effects of projectile/target impedance matching and projectile shape on energy, momentum transfer and projectile melting during collisions are investigated by numerical simulation. By comparing the computation results with the experimental result
Externí odkaz:
https://doaj.org/article/c35a05c7724247dcb2dd44421bb975d4
Autor:
Wenjin Liu, Qingming Zhang, Renrong Long, Jiankang Ren, Juncheng Li, Zizheng Gong, Qiang Wu, Siyuan Ren
Publikováno v:
Aerospace, Vol 11, Iss 8, p 621 (2024)
Rubble-pile asteroids may be the type of near-Earth object most likely to threaten Earth in a future collision event. Small-scale impact experiments and numerical simulations for large-scale impacts were conducted to clarify the size ratio of the bou
Externí odkaz:
https://doaj.org/article/e08a2698d8a246a49c7a94079088b82b
Publikováno v:
Applied Sciences, Vol 12, Iss 19, p 9974 (2022)
The hypervelocity impact of space debris causes damage or destruction to spacecraft. The continuous damage caused by space debris creates greater requirements for protective materials. Wave-impedance gradient-protection material is a new type of spac
Externí odkaz:
https://doaj.org/article/8e9aabc357c84dc48bef37c0333c132f
Publikováno v:
Chinese Science Bulletin. 65:346-372
The asteroid impact on the Earth has been frequently occured in history, and it caused the earth environmental catastrophe and biological extinction more than once. It was thought to be one of the major potential threats of human safety and survival,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d410ee5becc11d6d1910163c4ece993
https://doi.org/10.1360/tb-2019-0425
https://doi.org/10.1360/tb-2019-0425
Autor:
Wu Qiang, Song Guangming, Cao Yan, Zhang Pinliang, Tian Dongbo, Zizheng Gong, Xu Kunbo, Li Ming
Publikováno v:
International Journal of Impact Engineering. 126:101-108
The gradient material bumper shows promise to improve shielding performance of Whipple shields. The purpose of this study is to investigate the main factors in performance improvement. Comparison experiments have been performed on Al/Mg impedance-gra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98dc3023207821161ad6543244fa5500
https://doi.org/10.1016/j.ijimpeng.2018.12.007
https://doi.org/10.1016/j.ijimpeng.2018.12.007
Autor:
Song Guangming, Wu Qiang, Zhang Pinliang, Cao Yan, Tian Dongbo, Xu Kunbo, Z.J. Yu, Li Ming, Zizheng Gong
Publikováno v:
International Journal of Impact Engineering. 124:23-30
An improved meteoroid/debris shielding structure for spacecraft is presented, using a bumper constructed from impedance-graded materials. The hypervelocity impact performances of a shield enhanced by Ti-Al-nylon impedance-graded materials and an alum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::472491ab8c893d48df29ee7bf6a0c0a1
https://doi.org/10.1016/j.ijimpeng.2018.08.005
https://doi.org/10.1016/j.ijimpeng.2018.08.005
Publikováno v:
AIP Advances, Vol 4, Iss 11, Pp 117141-117141-7 (2014)
Structural, elastic, thermodynamic of ZrAl2 under pressure, ideal strength and deformation mode under tension are investigated by the first-principles method. The calculated structural parameters at zero pressure are in consistent with experiments. U
Externí odkaz:
https://doaj.org/article/eb6dc016196e475ea0b6b02339664586
Asteroid impacts pose a major threat to all life on Earth. Deflecting an asteroid on an impact trajectory is critical to mitigating this threat. A kinetic impactor remains the most feasible asteroid deflection method. However, due to launch capabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82633c40458914b662596caebca741f2
Publikováno v:
Chinese Journal of Engineering Science. 24:140
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3fd342143fe978301dcee153896b5dc
https://doi.org/10.15302/j-sscae-2022.02.015
https://doi.org/10.15302/j-sscae-2022.02.015
Publikováno v:
Optics Communications. 363:97-103
Ionizing radiation effects induced on-orbit performance degradation in homodyne binary phase shift keying (BPSK) based inter-satellite optical communication system is predicted in this paper. Essential optoelectronic devices involved in optical commu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::951dbff7baa10c07e0e8bc9c5301a610
https://doi.org/10.1016/j.optcom.2015.10.064
https://doi.org/10.1016/j.optcom.2015.10.064