| 1. | Theoretical model of generating quasi - isentropic compression via flier - plate with graded wave impedance has been established , and study on the numerical simulation was carried out
建立起了梯度飞片击靶的理论模型，对w - mo - ti体系击靶过程进行了数值模拟计算。 |
| 2. | This is the first time to utilize the method to simulate two - dimensional impedance gradient flier quasi - isentropic compression and launch the flier to hypervelocity in our country
我们给出的计算结果与sandia实验室超高速发射实验模型的实验结果和cth程序计算结果是一致的。 |
| 3. | For the sake of acquiring preferable quasi - isentropic compression energy waves , wave impedance distribution of the flier - plate had better be controlled between 2 and 3
为了获得较好的准等熵压缩波形，梯度飞片应以波阻抗值为设计参数，而且其波阻抗分布指数应控制在2 3之间。 |
| 4. | Continuity and smoothness of quasi - isentropic compression energy waves after impacting on targets with lithium fluoride windows were markedly better than those after impacting on targets without lithium fluoride windows
数值模拟结果表明，带窗口材料的靶板的准等熵压缩波波形的均匀性和连续性明显要好于无窗口的靶板的准等熵压缩波波形。 |
| 5. | The physical process of quasi - isentropic compression might be considered as the successive overlap of a series of small shock loading waves generated by the transition layers in the flier - plate
波阻抗梯度飞片对靶板的压缩过程是一系列弱冲击加载波相继发生作用叠加的结果，靶板由此获得的尸一v线是一组通过不同初始状态点的hugoulot线的连线 |
| 6. | According to the correlative theory of hydromechanics and shock wave , theoretical model of creating quasi - isentropic compression via w - mo - ti - mg system flier - plate with graded wave impedance was established , and study on the numerical simulation of the impact process was then carried out
根据流体力学和冲击波理论知识，首先建立了梯度飞片击靶的理论模型，对w - mo - ti - mg系梯度飞片击靶过程进行了数值模拟计算。 |
| 7. | The corrected visar - measured wave profiles on the interface between target and window were profiles with an initial velocity jump followed by a stepwise - rising front to the peak velocity amplitude , indicating that quasi - isentropic compression energy waves had been successfully generated
对visar测试到的波形进行合理的修正后，得到的界面速度波形都是由一个较弱的初始速度跳跃和一段缓慢上升的波阵面前沿所组成的准等熵压缩波。 |
| 8. | The results showed that quasi - isentropic compression energy waves were produced after the impact with mg - face of the flier - plate , whose initial velocity jump , peak velocity and front ' s rise - time were all different from the general shock loading wave profiles
结果表明，梯度飞片正向击靶后产生的是波阵面明显被展宽的准等熵压缩波，准等熵压缩波的初始速度跳跃、速度峰值和波阵面前沿的上升时间都呈现出不同于传统冲击波陡峭上升波形的特征。 |
| 9. | It is considered that , the physical process of generating quasi - isentropic compression on target via flier - plates with graded wave impedance can be stated as follows : a series of hungoniot curves with different original state forms the p - v relation of the target when impacted by a flier - plate with graded wave impedance
梯度飞片撞击靶板获得的p - v线是一组通过靶材料不同起始状态点的hugoniot线的连线，这条连线可以近似看作是由小段小段等熵线连接而成的“准等熵线” 。 |
| 10. | The results showed that quasi - isentropic compression energy waves were produced after the impact , whose initial velocity jump , peak velocity and front ' s rise - time were all different from the general shock loading wave profiles . furthermore , the higher the impact velocity , the smaller the extended wave ' s front while the higher the peak velocity
结果表明，梯度飞片击靶后产生的是波阵面明显被展宽的准等熵压缩波，准等熵压缩波的初始速度跳跃、速度峰值和波阵面前沿的上升时间都呈现出不同于传统冲击波陡峭上升波形的特征。 |
