一个新的旋转稳定弹弹道计算的刚体六自由度和五自由度模型

A NEW RIGID BODY SIX DEGREE OF FREEDOM MODEL AND RIGID BODY FIVE DEGREE OF FREEDOM MODEL FOR TRAJECTORY PREDICTION OF SPIN- STABILIZED PROJECTILES

本文提出了一个新的旋转稳定弹弹道计算刚体六自由度模型(R6D)及刚体五自由度模型(R5D)。它们与LOBS连接共享其优点。文中给出了相同条件下R6D,R5D及四自由度模型(4D)的比较结果,表明R5D是R6D与4D间的一个好的折衷模型,并简要论述了R5D的实现方法的数学本质上的合理性。

In this paper, a new rigid body six degree of freedom model (R6D) and relevant rigid body five degree of freedom model (R5D) for trajectory prediction of spin-stabilized projectiles are advanced. The mathematical models have been implemented in LOBS to share the merits of LOBS. The comparative results of R6D,R5D and four degree of freedom model (4D) under identical conditions indicate that R5D is a good compromise mode[ between R6D and 4D. The mathematical fundamentals for the formation of R5D are briefly discussed.