基于弹丸最大碎片理论的碎片云模型

文章基于弹丸最大碎片理论,建立了一种新的碎片云模型。假设碎片云分为缓冲板碎片云、弹丸碎片云及弹丸最大碎片3个部分,而缓冲板碎片云和弹丸碎片云分别为2个大小不等的膨胀球壳,而弹丸最大碎片与这2个球壳头部相切。该模型与Schonberg模型和Swift模型的对比分析结果表明,新模型形式简单、精度高、适用范围广,可以有效指导航天器空间碎片防护结构设计与防护性能分析。

A new debris cloud model based on the largest fragment theory

A new debris cloud model based on the largest fragment theory is put forward.It is assumed that the debris cloud is split into the debris cloud of bumper,the debris cloud of projectile and the largest fragment of projectile.All debris clouds originating from the projectile and the fragments originating from the bumper plate are evenly distributed on the surface of a big and a small expanding spherical shells,respectively.The largest fragment is located on the shot axis of the leading edge of the two spherical shells.The comparison of this new model with the Schonberg model and the Swift model shows that the new model is simple,accurate and applicable in a wide range.This model can provide an effective guidance for design and performance analysis of the spacecraft shielding structure.