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《Opto-Electronic Engineering》 2009-10
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Computational Method of Flyer Plates Kinetic Energy Efficiency Based on Laser Driving

ZHAO Xiang,SU Wei,LI Dong-jie,GAO Yang ( Institute of Electronic Engieering,Chinese Academy of Engieering and Physics, Mianyang 621900,Sichuan Province,China )  
With regard to decreasing the volume and weight of laser ignition system,it is practically significant to realize system miniaturization by utilizing efficiently kinetic energy of flyer plate. According to Laser Supported Detonation Wave (LSDW) theory,the time and space distributions of detonation-wave pressure of flyer plates supported by laser are analyzed. Then flyer plates kinetic energy efficient equation is deduced. Finally,Taking aluminium flyer plates as an example,the influences of the laser parameters (such as power density,pulse width,and focus spot diameter) and flyer structure parameters (such as flyer thickness,diameter) on kinetic energy efficient are analyzed. The computational results show that flyer plates kinetic energy efficiency has direct ratio to laser pulse width and flyer plates diameter,whereas has inverse ratio to focus spot,power density and flyer plates thickness.
【Fund】: 国防十一五预研项目
【CateGory Index】: TN249
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