母弹近区子弹的弹道特性

在母弹(布撒器)-子弹气动干扰风洞实验结果的基础上,进行了母弹近区子弹弹道计算. 结果表明,母弹干扰对子弹的弹道特性有重要影响,在母弹近区必须使用包含母弹干扰的子弹的当地气动特性数据进行子弹的弹道计算;子弹的初始下抛速度缩短了子弹飞离母弹干扰区的时间;在干扰区内,子弹的攻角很小,不会出现翻滚与母弹相碰;在母弹近区,子弹与母弹的纵向相对速度很小,后排子弹也不会运动到母弹的尾翼区.

Trajectory Characteristics of Submunition Near Dispenser

Based on the aerodynamic interference wind tunnel experimental data of dispenser and submunition,the trajectory of submunition near the dispenser is calculated.Results indicate that the interference of dispenser to submunition has great influence to the submunition trajectory.So,in the near region of the dispenser, the submunition's trajectory must be calculated using its local aerodynamic characteristic data including the interference of dispenser.The initial separation velocity of submunition shortens the time that submunition flies over the interference area of dispenser.The angle of attack of submunition is small in the interference area,so that the submunition would not overturn and would not collision with the dispenser.In the near region of the dispenser,the longitudinal relative velocity of submunition to the dispenser is very small,so the rear row submunition couldn't move to the dispenser's tail fin area.