多管火箭炮密闭发射内弹道仿真

Simulation of Interior Ballistics of MRLS with Airtight Launch

考虑到目前多管火箭炮武器系统发射时声光等信号特征明显,不利于隐蔽,且存在发动机尾焰过大,破坏周围设备,不利于小空间发射等缺点,研究采用密闭发射技术解决多管火箭炮发射时的此类问题。基于质量守恒原理和能量守恒原理,分别建立火箭发动机和火箭炮在密闭容腔内发射的内弹道数学模型,并采用matlab编程,进行仿真。分别分析了不同定向器长度、不同密闭容腔体积情况下对火箭炮内弹道的影响。分析结果表明,一定装药情况下,随着定向器长度的增加,火箭弹出口速度同步增大,但速度增大量越来越小;随着密闭容腔体积的增大,定向器内膛压峰值减小,但膛压峰值减小幅度越来越小。此时可根据计算结果优化火箭炮密闭发射内弹道,为改进火箭炮武器系统提供参考。

Considering that the sound and light signal characteristic of the multi-barrel rocket launcher system （MRLS） is obvious and not conducive to concealment, what＇ s more, there is a large engine flame which will damage the surrounding equipment and not conducive to little space launch. In the paper, to solve such kind of problems happened on MRLS, the airtight launch technique was adopted. Based on the principle of mass conservation and princi- ple of energy conservation, the rocket engines and rocket launcher of interior ballistics mathematical model in the airtight vessel were set up respectively, and MATLAB programming was used to conduct simulation numerically. The influence on interior ballistics of rocket launcher under the different direction pipe lengths and airtight vessel volumes were analyzed respectively. According to the analysis results, under a certain amount of propellant cases, with the in- crease in direction pipe length, the velocity of the rocket projectile increases synchronously, but the increment of velocity is smaller and smaller; with the rising of the airtight vessel volume, the peak pressure in direction pipe is reduced, but the decrement of the peak pressure is smaller and smaller. Now according to the analysis results, it can optimize the interior ballistics of MRLS, and provide some reference for the design of MRLS.