基于彈丸最大碎片理論的碎片云模型

A new debris cloud model based on the largest fragment theory

摘要: 文章基于彈丸最大碎片理論，建立了一種新的碎片云模型。假設(shè)碎片云分為緩沖板碎片云、彈丸碎片云及彈丸最大碎片3個部分，而緩沖板碎片云和彈丸碎片云分別為2個大小不等的膨脹球殼，而彈丸最大碎片與這2個球殼頭部相切。該模型與Schonberg模型和Swift模型的對比分析結(jié)果表明，新模型形式簡單、精度高、適用范圍廣，可以有效指導航天器空間碎片防護結(jié)構(gòu)設(shè)計與防護性能分析。

Abstract: 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.