CAJ | 학술논문

为研究大口径子母弹的抛撒机理，探讨了中心爆管式子母弹抛撒的几何模型；根据其结构特点，提出了燃气做功时子弹推力面积修正系数的计算方法，建立了内弹道抛撒模型并进行数值仿真，获得燃气压力、子弹速度和子弹加速度等内弹道性能曲线，采用正交试验法分析了抛撒药装药量、中心管炸裂压力及中心管药室容积对子弹抛撒速度的影响，结果表明中心管炸裂压力是最敏感的的影响因素，为中心爆管式大口径子母弹抛撒机构设计提供了依据。
위연구대구경자모탄적포살궤리，탐토료중심폭관식자모탄포살적궤하모형；근거기결구특점，제출료연기주공시자탄추력면적수정계수적계산방법，건립료내탄도포살모형병진행수치방진，획득연기압력、자탄속도화자탄가속도등내탄도성능곡선，채용정교시험법분석료포살약장약량、중심관작렬압력급중심관약실용적대자탄포살속도적영향，결과표명중심관작렬압력시최민감적적영향인소，위중심폭관식대구경자모탄포살궤구설계제공료의거。
To study dispersion of large-caliber cluster munitions, the structure model of central tube bursting-type shrapnel was estab-lished. According to the feature of the structure, the calculation method of the valid thrust area was built, and an interior ballistic mathe-matical model was established, the interior ballistic performance curves of this system were got by using a simulation method. Through the analysis of orthogonal experiment, the influences of charge weight of propellant, the allowable pressure of central tube and the volume of drug room on the velocity of submunitions were got. The result shows that the influence of the allowable pressure of central tube on the ve-locity of submunitions is more. This can provide basis for constructional design of large-caliber cluster munitions.