• Analysis of optimal strategies for soft landing on the Moon from lunar parking orbits

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      https://www.ias.ac.in/article/fulltext/jess/114/06/0807-0813

    • Keywords

       

      Lunar parking orbit; soft landing; Pontryagin’s maximum principle; tow-point boundary valu problem; controlled random search

    • Abstract

       

      Optimal trajectory design of a probe for soft landing on the Moon from a lunar parking orbit by minimizing the fuel required is obtained. The problem is formulated as an optimal control problem with the thrust direction being the control variable. Using the maximum principle of Pontryagin, the control variable is expressed as a function of co-state variables and the problem is converted into a two-point boundary value problem. The two-point boundary value problem is solved using an optimization technique, i.e., controlled random search. The strategies such as

        unordered

      are analyzed and an optimal strategy that achieves the goals is suggested. Also, appropriate design parameters are selected using this analysis

    • Author Affiliations

       

      R V Ramanan1 Madan Lal1

      1. Aerospace Flight Dynamics Group, Vikram Sarabhai Space Centre, Thiruvananthapuram - 695 022, India
    • Dates

       
  • Journal of Earth System Science | News

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