子母弹内燃式气囊抛撒内弹道建模及数值仿真

为研究子母弹内燃式气囊抛撒的内弹道过程, 探讨了内燃式气囊抛撒系统的结构和工作原理;根据内燃式气囊膨胀过程的特点,提出了气囊容积和有效推力面积的计算方法,建立了内燃式抛撒机构的抛撒内弹道模型.利用数值计算方法,获得了燃气压力、子弹速度和子弹加速度等内弹道性能曲线,并对计算结果进行了分析.数值仿真及地面试验结果验证了模型的合理性,为子母弹内燃式抛撒系统结构设计提供了理论研究方法.

Interior Ballistic Modeling and Numerical Simulation for the Internal Combustion Gasbag of Cluster Munition

To study the interior ballistic process of the internal-combustion gasbag cluster munition,the structure and the work principle of the bag launching system were explored.The calculation method of the gasbag volume and the valid thrust area were built according to the characteristics of gasbag expanding,and an interior ballistic model of internal-combustion gasbag was presented.The interior ballistic performance curves of this system were calculated to obtain the pressure,the velocity and the acceleration of...