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Wang S.-L.,The Second Artillery Equipment Academe | Luo Y.-F.,The Second Artillery Equipment Academe | Yuan Y.-N.,The Second Artillery Equipment Academe
Dandao Xuebao/Journal of Ballistics | Year: 2010

In order to analyze the influence of SEFAE device structure on damage-power, center dispersed and center with circumjacent dispersed SEFAE devices were designed based on explosion characteristics. The static explosion experiments were carried out, and the SEFAE damage power parameters were measured by high-speed photograph and wall pressure transducers. The experiment results show that: the apt inner shell with the optimized SEFAE device structure can increase the utilization rate of SEFAE total energy and the far-field overpressure, so as to improve the damage-power; the center and circumjacent dispersed SEFAE with steel inner shell is the best device with 30 m fireball diameter, and its average TNT equivalent and the maximum TNT equivalent at 14 m were 2.19 and 3.17 respectively.


Yan H.,The Second Artillery Equipment Academe | Liu Z.-Y.,The Second Artillery Equipment Academe | Shi M.-S.,The Second Artillery Equipment Academe | Luo Y.-F.,The Second Artillery Equipment Academe | And 2 more authors.
Gaoya Wuli Xuebao/Chinese Journal of High Pressure Physics | Year: 2015

Using density functional theory (DFT), the reaction of chlorine trifluoride oxide (ClF3O) with propylene oxide (C3H6O) was studied. At the B3PW91/6-31++G(d, p) level, geometries of all species (reactants, transition states and products) were optimized, and the vibrational frequencies and zero point vibrational energies (ZPVE) were calculated. The energies of all species were refined with CCSD(T)/6-31++G(d, p)//B3PW91/6-31++G(d, p) method and ZPVE correction. The calculated results suggest that the initial reaction has various pathways to yield the main products of C3H5O and ClOF2 radicals, and C3H6O2 and ClF3 molecules. The reactions of C3H5O and ClOF2 radicals have different pathways to yield the main products of C3H4O, ClOF and HF molecules. The main reaction channel is C3H6O+ClF3O→TS12→P4 (C3H5O+HF+ClOF2) →P12 (CH2CHCHO+2HF+ClOF). P4 is produced by C3H6O and ClF3O via TS12 with a low barrier of 15.63 kJ/mol, and P12 can be formed from P4 through a barrierless process. ©, 2015, Chinese Journal of High Pressure Physics. All right reserved.


Gao H.-Q.,National University of Defense Technology | Lu F.-Y.,National University of Defense Technology | Wang S.-L.,The Second Artillery Equipment Academe | Luo Y.-F.,The Second Artillery Equipment Academe | And 2 more authors.
Hanneng Cailiao/Chinese Journal of Energetic Materials | Year: 2011

Using a designed experimental device, explosion experiments of hydrocarbon with chlorine trifluoride in confined space were carried out, based on the analysis of the hydrocarbon and chlorine trifluoride reaction mechanism. The energy released from the reaction of hydrocarbon and chlorine trifluoride without oxygen was calculated based on experimental results. Results show that (1) The reaction of hydrocarbon and chlorine trifluoride accompanies an intense release of great deal of energy, so that part of the hydrocarbon is vaporized and dispersed, a violent deflagrating would be ignited once the vaporized hydrocarbon be mixed with the air. (2) The TNT equivalence of the explosion reaction of hydrocarbon and chlorine trifluoride without oxygen is about 1.8.


Gao H.-Q.,National University of Defense Technology | Lu F.-Y.,National University of Defense Technology | Wang S.-L.,The Second Artillery Equipment Academe | Yan P.,The Second Artillery Equipment Academe | And 3 more authors.
Baozha Yu Chongji/Explosion and Shock Waves | Year: 2011

Based on the fact that in an experimental device filled with explosive and fluoride, the explosion of the central explosive could disperse the fluoride out of the device, then the fluoride would intensely react with the liquid in the confined container and release plentiful energy, three experiments with different explosion depths were carried out in small-scale confined containers to evaluate the damage power of this device according to the overpressure-impulse criterion. And the TNT equivalent mass of this device was calculated. The experiment with the explosion depth of 1.2 m was numerically simulated by using the experimental data. The maximum dispersal velocity of the top cover obtained by simulation is close to the experimental result. It displays that the given evaluation method is feasible.


Gao H.-Q.,National University of Defense Technology | Lu F.-Y.,National University of Defense Technology | Wang S.-L.,The Second Artillery Equipment Academe | Luo Y.-F.,The Second Artillery Equipment Academe | And 3 more authors.
Baozha Yu Chongji/Explosion and Shock Waves | Year: 2011

The motion deformation of the inner shells outside disperse explosive was theoretically analyzed, which was resulted from the driving of the explosion production. Based on the theoretical analysis, static explosion damage power experiments were conducted for two kinds of single event fuel air explosive (SEFAE) devices with different structures, respectively. Experimental results display that the damage power of the centrally dispersed SEFAE can be improved by aptly decreasing the strength of the inner shells; and that the damage power of the centrally and circumjacently dispersed SEFAE can be improved by properly increasing the strength of the inner shells.


Gao H.-Q.,National University of Defense Technology | Lu F.-Y.,National University of Defense Technology | Luo Y.-F.,The Second Artillery Equipment Academe | Wang S.-L.,The Second Artillery Equipment Academe | And 3 more authors.
Gaoya Wuli Xuebao/Chinese Journal of High Pressure Physics | Year: 2011

Based on the theoretical analysis of the SEFAE outer shell velocity and kinetic energy with different depths, the influence of the shell on the dispersed fuel was obtained. The relationships between the damage power and the thickness of the shells were obtained by different SEFAE explosion experiments. The theoretical and experimental results show that the TNT equivalent of the SEFAE and the utilization rate of the center charge can be improved by using the thinner shell and increasing the connection strength between the shell and the end cover, in which the experimental results were in agreement with the theoretical results.


Li X.,The Second Artillery Equipment Academe | Zhang Z.-Y.,China Institute for Radiation Protection | Zuo L.,The Second Artillery Equipment Academe | Yuan W.,The Second Artillery Equipment Academe
Hedianzixue Yu Tance Jishu/Nuclear Electronics and Detection Technology | Year: 2014

In the study, a design scheme of an airborne γ spectrometer was described, including its working principle, overall architecture and design ideas for the hardware. Digital signal processing and data acquisition through field-programmable gate array (FPGA) were adopted for the spectrometer, so that it can be characterized by small size, low power consumption, high accuracy and good scalability. This kind of spectrometer can be mounted in a small aircraft for γ spectroscopy measurement and γ radionuclide identification around the natural environment, and also for the measurement of γ dose simultaneously. This spectrometer was an integrated design. It can be used as a wireless data transceiver, and can detect γ spectroscopy under multi-task conditions.


Yan H.,The Second Artillery Equipment Academe | Luo Y.-F.,The Second Artillery Equipment Academe | Gao H.-Q.,The Second Artillery Equipment Academe | Yan P.,The Second Artillery Equipment Academe | Luo K.-S.,The Second Artillery Equipment Academe
Hanneng Cailiao/Chinese Journal of Energetic Materials | Year: 2015

Using density functional theory (DFT), the reaction of chlorine trifluoride oxide with water was studied. At the B3PW91/6-31++G(d, p) level of DFT, the geometries of reactants, transition states, and products were optimized and the vibration frequencies and zero point vibrational energies (ZPVE) were calculated. Their energies were obtained with the correction of ZPVE. Results show that the energy barriers of the reaction of chlorine trifluoride oxide and water are very low, and a plenty of water is in favor of producing HF, HClO2 and HClO4, however, insufficient water is in favor of producing HF and ClFO2. ©, 2015, Institute of Chemical Materials, China Academy of Engineering Physics. All right reserved.

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