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| 1 | Preliminary Study on Magnetic Induction Intensity Induced by Plasma During Hypervelocity Impact显示文摘An experimental system has been built to produce and measure the magnetic field in the backward ejected matter during hypervelocity impact.The designs of measurement system and coil,the choice of associated equipment,and the system calibration are also described in detail.The measurement of magnetic induction intensity for different given coil positions and azimuth angles are performed with two-stage light-gas gun.On condition that impact velocities are approximately equal and incidence angles are 45°,60° and 90° respectively,the relationship between average magnetic induction intensity and impact angle at different time spans is obtained.Experimental results show that the average magnetic induction intensity with incidence angle of 90° is larger than those with incidence angles of 45°and 60°. | Tang Enling Zhang Qingming Zhang Jian | 2009 | Chinese Journal of Aeronautics2009，22，4： | 13 |
| 2 | Diagnosis of electromagnetic properties and light flash characteristics created by hypervelocity impact显示文摘 | Tang Enling Zhang Qingming Xiang Shenghai | 2012 | International Journal of Applied Electromagnetic s and Mechanics2012，40，2： | 1 |
| 3 | Fast diagnosis of transient plasma by Langmuir probe显示文摘 | Tang Enling Zhang Qingming Ouyang Jiting | 2007 | Journal of Beijing Institute of Technology (English Edition)2007，16，3： | 1 |
| 4 | Synthesis and characterization of polyacrylates containing charge transfer groups显示文摘 | Min Li Enle Zhou Jiping Xu Chuncai Yang Xinying Tang | 1995 | Polymer Bulletin (-)1995，，1： | 1 |
| 5 | Preliminary study on diagnostic techniques for transient plasma generated by hyperve- locity impact显示文摘 | Tang Enling Zhang Qingming He Yuanhang | 2008 | Plasna Science and Technology2008，10，6： | 1 |
| 6 | Macro Meso Response and Stress Wave Propagation Characteristics of MCT High-Voltage Switch Under Shock load显示文摘In order to study the dynamic and electrical coupling response characteristics of Metal Oxide Semiconductor Controlled Thyristor(MCT)high-voltage switch under the synergic action of mechanical load and high voltage,the separated Hopkinson pressure bar(SHPB)test system was used to simulate different impact load environments,and combined with the multi-layer high-voltage ceramic capacitor charging and discharging system,the instantaneous electrical signals of MCT high-voltage switch were collected.Combined with numerical simulation and theoretical analysis,the failure mode and stress wave propagation characteristics of MCT high voltage switch were determined.The mechanical and electrical coupling response characteristics and failure mechanism of MCT high voltage switch under dynamic load were revealed from macroscopic and microscopic levels.The results show that the damage modes of MCT high-voltage switches can be divided into non-functional damage,recoverable functional damage,non-recoverable damage and structural damage.Due to the gap between the metal gate and the oxide layer,the insulating oxide layer was charged.After placing for a period of time,the elastic deformation of the metal gate partially recovered and the accumulated charge disappeared,which induced the recoverable functional damage failure of the device.In addition,obvious cracks appeared on both sides of the monocrystalline silicon inside the MCT high-voltage switch,leading to unrecoverable damage of the device. | Yuyang Guo Chuang Chen Ruizhi Wang Enling Tang | 2024 | Defence Technology(防务技术)2024，32，2： | 0 |
| 7 | Temperature dependence of the mechanical and electrical properties of soft-doped lead zirconate titanate under compression and impact显示文摘Compared to a quasistatic environment,the electromechanical response of piezoelectric ceramics exhibits a considerably nonlinear behavior when subjected to impact.If the effect of ambient temperature is further considered,then the situation becomes more unpredictable.The thermal,mechanical,and electrical properties of soft-doped piezoelectric ceramics(PZT-5H)under compression and impact conditions were analyzed in the temperature range of-60℃to 200℃(below Curie temperature).The experimental results indicate that the fracture strength of PZT-5H has an extreme value near room temperature.The dynamic piezoelectric coefficient is strongly temperature dependent and has a maximum value near 100℃because of the“electric devil's staircase effect”between polarization and domain switching threshold.These temperature-dependent data will enable the accurate prediction of the dynamic performance of devices by computer simulation. | WANG RuiZhi WANG ZhiQiang TANG EnLing PENG Hui YANG GuoLai HE LiPing CHEN Chuang HAN YaFei | 2023 | Science China(Technological Sciences)2023，66，12： | 0 |
| 8 | Effect of the interval between two shocks on ejecta formation from the grooved aluminum surface显示文摘This work focuses on the effect of the interval between two shocks on the ejecta formation from the grooved aluminum(Al_(1100))surface by using smoothed particle hydrodynamics numerical simulation.Two unsupported shocks are obtained by the plate-impact between sample and two flyers at interval,with a peak pressure of approximately 30 GPa for each shock.When the shock interval varies from 2.11 to 7.67 times the groove depth,the bubble velocity reduces to a constant,and the micro jetting factor R_(J) from spike to bubble exhibits a non-monotonic change that decreases initially and then increases.At a shock interval of 3.6 times the groove depth,micro jetting factor R_(J) from spike to bubble reaches its minimum value of approximately 0.6.While,the micro jetting factor R_(F) from spike to free surface decreases linearly at first,and stabilizes around 0.25 once the shock interval surpasses 4.18 times the groove depth.When the shock interval is less than 4.18 times the groove depth,the unloading wave generated by the breakout of the first shock wave is superimpose with the unloading part of the second shock wave to form a large tensile area. | Mingyang Xu Jianli Shao Weidong Song Enling Tang | 2024 | Defence Technology(防务技术)2024，33，3： | 0 |
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