| Particle Velocity Measurement for Spherical Wave in Solid |
| |
| 引用本文： | 郑学锋 王占江 林俊德 沈钧毅. Particle Velocity Measurement for Spherical Wave in Solid[J]. 兵工学报(英文版), 2006, 2(2): 96-101 |
| |
| 作者姓名： | 郑学锋 王占江 林俊德 沈钧毅 |
| |
| 作者单位： | [1]Xi＇an Jiaotng University, Xi＇an 710049 Shaanxi, China [2]Northwest Institute of Nuclear Technology, Xi＇an 710024 Shaanxi, China |
| |
| 摘 要： | An experimental technique for research on spherical divergent wave propagation in a solid has been developed, in which the source of generating spherical wave is a center initiating explosive charge designed in a mini-spherical shape with yield equivalent to 0. 125 g and 0. 486 g TNT and a set of circular electromagnetic particle velocity gages is used to record the particle velocity histories. By using the circular electromagnetic particle velocity gages, the signal outputs not only are unattenuated due to the geometrical divergence, hut also represent the average of the measured dynamic states of the medium over a circle on the wavefront. The distinctive features of this technique are very useful for the study of spherical divergent wave propagation in a solid, especially in an inhomogeneous solid, and the corresponding material dynamics. Many experimental measurements were conducted in polymethylmethacrylate （PMMA） and granite by means of the technique, and the reproducibility of tests was shown to be good. The measurement technique of the circular electromagnetic particle velocity gages is also suitable to the case of cylindrical wave.
|
| 关 键 词： | 球形波 质点速度 光谱信号 频率 核能 核爆炸 |
| 收稿时间： | 2006-02-25 |
Particle Velocity Measurement for Spherical Wave in Solid |
| |
| ZHENG Xue-feng,WANG Zhan-jiang,LIN Jun-de,SHEN Jun-yi. Particle Velocity Measurement for Spherical Wave in Solid[J]. Journal of China Ordnance, 2006, 2(2): 96-101 |
| |
| Authors: | ZHENG Xue-feng WANG Zhan-jiang LIN Jun-de SHEN Jun-yi |
| |
| Abstract: | An experimental technique for research on spherical divergent wave propagation in a solid has been developed,in which the source of generating spherical wave is a center initiating explosive charge designed in a mini-spherical shape with yield equivalent to 0.125 g and 0. 486 g TNT and a set of circular electromagnetic particle velocity gages is used to record the particle velocity histories. By using the circular electromagnetic particle velocity gages, the signal outputs not only are unattenuated due to the geometrical divergence, but also represent the average of the measured dynamic states of the medium over a circle on the wavefront. The distinctive features of this technique are very useful for the study of spherical divergent wave propagation in a solid, especially in an inhomogeneous solid, and the corresponding material dynamics.Many experimental measurements were conducted in polymethylmethacrylate (PMMA) and granite by means of the technique, and the reproducibility of tests was shown to be good. The measurement technique of the circular electromagnetic particle velocity gages is also suitable to the case of cylindrical wave. |
| |
| Keywords: | electromagnetic particle velocity gage spherical wave miniature spherical explosive charge measurement technique Solid Spherical Wave Velocity Measurement measurement technique case wave reproducibility good granite means PMMA experimental measurements material dynamics especially features study represent average |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
