摘要
提出了一种基于数字仿真的再入弹头滚转异常边界条件的确定方法。即：首先给出可精确描述考虑各种气动力（矩）系数、各种干扰源作用时的六自由度运动方程。针对各种干扰源及其组合作用，对某弹头的滚转异常现象作了大量的数字仿真。文中采用一种拟合方法，妥善处理了这些仿真结果。
A monthed is presented to determine the unusual rolling boundary condition of a reentry vehicle based on the numerical simulation A six freedom equations of motion are given to exactly consider many kinds of disturbances and all kinds of aerodynamic coefficients A lot of numerical simulations have been done for the unusual rolling of a reentry vehicle considering the disturbances The paper stadied a numerical method to deal with the large amount numerical results and obtained an approximate analytical formula to calculate the unusual rolling boundary condition of the reentry vehicle
出处
《宇航学报》
EI
CAS
CSCD
北大核心
1997年第1期18-22,共5页
Journal of Astronautics
关键词
再入
飞行器
滚转异常
边界条件
Reentry vehicle Unusual rolling Boundary condition
