Analysis of the discharge process in electrothermal light gas gun 電熱輕氣炮電弧電阻計算及其彈道分析
And the thickness of target should also be well designed as for creating a better quasi - isentropic compressive wave profile . finally , experiments of quasi - isentropic loading to 93w alloys via w - mo - ti flier - plates were performed on a two - stage light gas gun 在二級輕氣炮上進行了w - mo - ti體系梯度飛片材料準(zhǔn)等熵壓縮特性的實驗研究,利用梯度飛片成功實現(xiàn)了對93w合金的準(zhǔn)等熵壓縮。
Light gas gun was used to create shock pressure . staged samples , cuneiform window with aluminium coat on the reflecting surface and visar ( velocity interferometer system for any reflector ) were employed in the experiments . polymethyl methacrylate and ofhc copper were assembled as the impactor to impact staged samples 采用氣炮加載,利用臺階樣品、雙點式visar ( velocityinterferometersystemforanyreflector )和鍍膜楔形窗口技術(shù),以有機玻璃和無氧銅組合為飛片,碰撞無氧銅臺階樣品。
At the same time , the thickness of target should also be in accord with the impact velocity . experiments of quasi - isentropic loading to 93 w alloys by 93w - ofc - tc4 - a1 - mbz system flier - plate with graded wave impedance were performed on light gas guns . the corrected visar - measured wave profiles 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 在輕氣炮上利用研制的93w - ofc一tc4 . ai一mbz系波阻抗梯度飛片實現(xiàn)了對93w合金(靶材料)的準(zhǔn)等嫡壓縮,經(jīng)修正后的測試波形都是由一個較弱的初始速度跳躍和一段呈階梯狀緩慢上升的波陣面前沿所組成的準(zhǔn)等嫡壓縮波。
The main work and achierement are as following : ( 1 ) by using shock impedance matching technique and electric probe method , 5 shots of impact experiments were conducted to measure the hugoniot equation of state for enstatite ( mg0 . 92 , fe0 . 08 ) sio3 with the average initial density 3 . 05g / m3 from shock pressure 50 gpa to 115gpa , using two stage light gas gun 本文研究取得的認(rèn)識主要有以下幾點: ( 1 )用阻抗匹配法和電探針技術(shù)在80 115gpa壓力范圍內(nèi)對平均初始密度為3 . 05g / cm ~ 3的頑火輝石樣品進行了5發(fā)hugoniot狀態(tài)實驗測量。
The light-gas gun is an apparatus for physics experiments, a highly specialized gun designed to generate very high velocities. It is usually used to study high speed impact phenomena (hypervelocity research), such as the formation of impact craters by meteorites or the erosion of materials by micrometeoroids.