B/KNO3激光点火内弹道仿真研究  

The Interior Ballistic Simulation of B/KNO 3 by Laser Ignition

作　　者：湛赞 梁晓爱 严楠[1] 李朝振[1] 赵象润 ZHAN Zan;LIANG Xiaoai;YAN Nan;LI Chaozhen;ZHAO Xiangrun(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China;Xi’an Aerospace Propulsion Institute,Xi’an 710025,China)

机构地区：[1]北京理工大学爆炸科学重点试验室,北京100081 [2]西安航天动力技术研究所,西安710025

出　　处：《弹箭与制导学报》2020年第1期141-144,149,共5页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(U1530135)资助。

摘　　要：为确定B/KNO3在激光点火作用下内弹道性能,开展B/KNO3在密闭爆发器下激光点火p-t试验及内弹道仿真研究。建立了改进内弹道仿真模型,并通过MATLAB数值仿真拟合了B/KNO3激光点火过程的p-t曲线,仿真结果能较好模拟点火过程中压力变化历程。通过p-t曲线积分得到单位面积冲量-时间曲线,在300 ms内仿真和试验结果误差在10%以内,可用于B/KNO3输出做功性能评估。In order to determine the interior ballistic performance of B/KNO 3 under laser ignition,the p-t test and interior ballistic simulation of B/KNO 3 under closed bomb are carried out.The improved interior ballistic simulation model is established,and the p-t curve of B/KNO 3 by laser ignition is fitted by Matlab numerical simulation.The simulation results can simulate the pressure change process during ignition.Through the integral of p-t curve,the impulse-time curve per unit area is obtained.Within 300ms,the error of simulation and test results is less than 10%,which can be used for B/KNO 3 output performance evaluation.

关 键 词：B/KNO3 激光点火 内弹道 密闭爆发器 

分 类 号：TJ45[兵器科学与技术—火炮、自动武器与弹药工程] TJ01