外文翻译-一种基于跳跃轨迹的可重复使用飞行器再入走廊预测方法.doc

英 文 翻 译 系 别 专 业 班 级 学生姓名 学 号 指导教师  A Reentry Corridor Calculation Methodfor Reusable Launch Vehicles Based on SkiPPing Trajectory in this paper, according to lift vehicle dynamics, this paper proposes a border as a benchmark in aircraft under the reentry corridor corridor by track jumping fast calculation method of boundary. Combining the kinematics equation and the simulation experiment of concrete analysis of the reliability of the method and the optimality. The experimental results showed that the traditional condition of quasi-equilibrium glide into the corridor again has some conservative estimates, in this paper, the method to calculate the reentry corridor can reflect more aircraft mobility. And, compared with general corridor was calculated by the method to solve the problem of optimization of the direct method and indirect method, the proposed approach with a small amount of calculation, the calculation time is short, the advantages of strong convergence, which have stronger practicability. 1 the introduction A reusable spacecraft (ReusableLaunchVehicle, RLV) is the height of the crystallization of aviation, space technology, will be the future development trend in the field of aerospace technology, it implements the cheap and reliable space transportation. Reentry guidance control of the process of 2 technology is the study of the key technologies of reusable spacecraft. Spacecraft reentry corridor 3 surround describes the reentry process craft can achieve high range, is in the process of the reentry trajectory planning, guidance and control scheme of the important basis. Reentry corridor generally lower boundary by reusable spacecraft reentry process constraints (dynamic pressure constraint, overload constraint, the heating rate constraint) sure, go up into the corridor of the boundary condition of quasi-equilibrium glide available a [6] [7] (Quasi E Ming ilibriumGlideCondition, QEGC) approximation. Quasi-equilibrium glide is refers to