| 基于数字仿真的再入飞行器滚转异常边界条件研究 |
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| 引用本文： | 南英 陈士橹. 基于数字仿真的再入飞行器滚转异常边界条件研究[J]. 宇航学报, 1997, 18(1): 18-22 |
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| 作者姓名： | 南英 陈士橹 |
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| 作者单位： | 北京航空航天大学，西北工业大学 |
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| 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，拟合出该弹头滚转异常边界条件的近似解析式
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| 关 键 词： | 再入飞行器 滚转异常 边界条件 |
UNUSUAL ROLLING BOUNDARY CONDITION OF REENTRY VELICLES BASED ON NUMERICAL SIMULATION |
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| Nan Ying. UNUSUAL ROLLING BOUNDARY CONDITION OF REENTRY VELICLES BASED ON NUMERICAL SIMULATION[J]. Journal of Astronautics, 1997, 18(1): 18-22 |
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| Authors: | Nan Ying |
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| Affiliation: | Nan Ying (Beijing University of Aeronautics and Astronautics) Chen Shilu Yan Hui (Northwestern Polytechnical University) |
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| Abstract: | 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 |
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| Keywords: | Reentry vehicle Unusual rolling Boundary condition |
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