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.
作者
湛赞
梁晓爱
严楠
李朝振
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)
出处
《弹箭与制导学报》
北大核心
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。
