Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Yuquan Wen"'
Publikováno v:
Defence Technology, Vol 23, Iss , Pp 35-49 (2023)
The detonation wave–aiming warhead can effectively enhance the lethality efficiency. In the past, rules for casing rupture and velocity distribution under asymmetrical initiations were not adequately investigated. In this study, X-ray photography a
Externí odkaz:
https://doaj.org/article/0904cd1547ae4750b313972556feca8d
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 42 (2023)
In this study, a finite element model of a pressure cartridge-type pin puller is used to simulate the actuation process and predict the actuation shock using the deflagration equation of state and the fluid-structure coupling algorithm of the MSC/Dyt
Externí odkaz:
https://doaj.org/article/57b0ac6bc6e140e3a20a2e5ea406426b
Publikováno v:
Materials & Design, Vol 228, Iss , Pp 111815- (2023)
Hollow charges play essential roles in the warhead design, detonation wave control, and lethality tuning. The superficial structure difference with solid charges prevents the direct application of Gurney's formula to determine fragment velocity. Tool
Externí odkaz:
https://doaj.org/article/397e1f14a4994be482ec9d152733c803
Publikováno v:
AIP Advances, Vol 12, Iss 10, Pp 105309-105309-10 (2022)
Air gap thickness significantly affects the detonation reliability of explosive trains. This paper mainly studies the detonation reliability of explosive trains with a micro-sized air gap. First, the detonation process of the JO-9C mild detonation co
Externí odkaz:
https://doaj.org/article/c1ba576284fb4d3ca441965d5f90fa13
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 41 (2022)
To solve the problem of large operating noise of existing pyrotechnic separation devices, a new low-noise pyrotechnic separation device is designed by changing the utilisation mode of pyrotechnic separation, using micro gas pyrotechnic as heat source
Externí odkaz:
https://doaj.org/article/f07ea0aa371f462f8fda33865b6dc99b
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 8, p 4127 (2022)
The full-field ERG is useful for index rod- or cone-mediated retinal function in rodent models of retinal degeneration. However, the relationship between the ERG response amplitudes and visually guided behavior, such as flicker detection, is not well
Externí odkaz:
https://doaj.org/article/16bf57b17c2745d49f52e8a37d513e9f
Publikováno v:
AIP Advances, Vol 9, Iss 9, Pp 095011-095011-7 (2019)
The detonation wave propagation characteristics in micro-scale groove charges are very important for optimizing the structure of the Micro-Electro-Mechanics System explosive train and improving its detonation reliability. Focusing on the problem of d
Externí odkaz:
https://doaj.org/article/70c97e4ab2b641be8e5a711e4c000133
Publikováno v:
Shock and Vibration, Vol 2019 (2019)
Pyrotechnic cutters are widely used in the wrapping-band connecting structures of carrier rockets. In this article, a three-dimensional (3D) finite element model of a pyrotechnic cutter is proposed to determine the influence of the explosive dynamic
Externí odkaz:
https://doaj.org/article/c7db30379cbe44bcb01abb7727e8a583
Publikováno v:
Shock and Vibration, Vol 2019 (2019)
An explosive bolt is a simple, highly reliable, and efficient pyrotechnic release device widely used in spacecraft and rocket launchers. High shock transient response is generated during the separation of a release device, which tends to damage the n
Externí odkaz:
https://doaj.org/article/826f12ff78224114a2644263040f6af4
Autor:
Yuan Li, Yuquan Wen
Publikováno v:
Advances in Mechanical Engineering, Vol 9 (2017)
Traditional fragmentation warheads are usually initiated on the axis, producing a uniform fragment distribution around the warhead, but only little portion of them can be imposed on the targets. The aimable warhead, on the other hand, using the off-a
Externí odkaz:
https://doaj.org/article/57cc6b42f21e4333a02ca807033b0ec8