An Optimal Fuel Guidance Law for Lunar Soft-Landing Based on Three-Dimensional Dynamic Model - 文章详情页

作者：

Xiao, Y. (Xiao, Y..) | Ruan, X. (Ruan, X..) | Wei, R. (Wei, R..)

收录：

Scopus PKU CSCD CSSCI

摘要：

Optimal　fuel　consumption　is　required　in　the　process　of　lunar　soft-landing.　An　optimal　fuel　guidance　law　is　designed　with　the　method　of　variational　calculus.　The　problem　is　converted　into　the　terminal　time-free　two-point　boundary　value　problem　(TPBVP)　based　on　variational　calculus.　Then　a　time-scale　method　is　used　to　convert　the　terminal　time-free　TPBVP　into　terminal　time-fixed　TPBVP.　Finally,　an　initial　adjoint　variables　guess　approach　is　introduced　to　assure　the　convergence　of　the　numerical　iteration　method　for　solving　TPBVP.　The　exact　terminal　time　and　initial　value　of　adjoint　variables　are　calculated　by　numerical　method,　as　well　as　the　optimal　fuel　guidance　law　and　3D　optimal　trajectory.　The　simulation　results　show　that　the　proposed　method　is　valid　and　achieve　the　goal　of　optimal　fuel　guidance.　©　2017,　Shanghai　Jiao　Tong　University　Press.　All　right　reserved.

关键词：

3-dimensional dynamic model; Guidance law; Lunar soft-landing; Optimal fuel; Two-point boundary value problem (TPBVP)

作者机构：

[ 1 ] [Xiao, Y.]Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Ruan, X.]Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Wei, R.]Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China

通讯作者信息：

[Ruan, X.]Faculty of Information Technology, Beijing University of TechnologyChina

电子邮件地址：

adrxg@bjut.edu.cn

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