液体火箭爆炸碎片模型研究

对液体火箭爆炸碎片模型进行了研究。由当量原理和能量守恒建立了碎片初速模型。验证了美国航空航天局（NAsA）火箭箭体爆炸解体模型不适于火箭芯一级爆炸；修正了Mott模型，用于描述液体火箭爆炸碎片质量和数量的分布规律；分析了碎片速度衰减规律和杀伤标准。研究表明：建立的模型能描述液体火箭爆炸碎片特征，评估爆炸碎片的威胁半径。

Study of Liquid Rocket Explosion Fragments Model

The model of the liquid propellant explosion fragments was studied in this paper. The fragments initial velocity model was established according to equivalent theory and energy conservation. The validation of NASA rocket body breakup model showed that it would not be suit to the circumstance of the rocket first stage explosion. The Mort model was modified to characterize the distribution rule of the mass and number of the liquid rocket explosion fragments. The attenuation law and damage standard of velocity were analyzed. The study indicated that the model given out could describe the characteristic of the liquid rocket explosion fragments and assess the threaten radius of the explosion fragments.