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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/43118

Title: Optimal Lift and Bank Modulations for Three-Dimensional Reentry Trajectories with Heating Constraints
Authors: Jeng-Shing Chern;Ching-Yew Yang;Jyh-Jong Sheen
Contributors: 國立臺灣海洋大學:機械與機電工程學系
Date: 1998-05
Issue Date: 2017-06-05T02:20:21Z
Publisher: Acta Astronautica
Abstract: Abstract:For hypersonic reentry flight, the heat problem is usually the most severe problem. Therefore, it is of necessity and interest to consider the heat constraint in solving optimal reentry trajectories. This paper, under the facilities of the continuation method and the multiple shooting method, investigates the optimal lift and bank modulations for three-dimensional reentry trajectories with heating rate constraint. The modified Newton method is used to induce and accelerate convergence. From the variational formulation, the optimal lift and bank control laws and the transversality conditions are derived. The non-constrained optimal trajectories leading to the boundary of the maximum reachable domain of a typical lifting reentry vehicle are solved at first. It is a three-parameter two-point boundary-value problem. Then the heating rate constraint is imposed and the constrained maximum reachable domain is constructed finally. Because the equilibrium glide condition is eliminated in this paper, the maximum reachable domain obtained is larger than the one obtained under the equilibrium glide assumption. Besides, both optimal lift and optimal bank control histories are presented and discussed.
Relation: 17(3) pp.303-309
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/43118
Appears in Collections:[機械與機電工程學系] 期刊論文

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