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MEHEDI, I. M., KUBOTA, T., AL-SAGGAF, U. M.. (1394). 3-DIMENSIONAL ANALYTICAL SOLUTION FOR LUNAR DESCENT SCHEME. , 39(E1), 67-77. doi: 10.22099/ijste.2015.3061
I. M. MEHEDI; T. KUBOTA; U. M. AL-SAGGAF. "3-DIMENSIONAL ANALYTICAL SOLUTION FOR LUNAR DESCENT SCHEME". , 39, E1, 1394, 67-77. doi: 10.22099/ijste.2015.3061
MEHEDI, I. M., KUBOTA, T., AL-SAGGAF, U. M.. (1394). '3-DIMENSIONAL ANALYTICAL SOLUTION FOR LUNAR DESCENT SCHEME', , 39(E1), pp. 67-77. doi: 10.22099/ijste.2015.3061
MEHEDI, I. M., KUBOTA, T., AL-SAGGAF, U. M.. 3-DIMENSIONAL ANALYTICAL SOLUTION FOR LUNAR DESCENT SCHEME. , 1394; 39(E1): 67-77. doi: 10.22099/ijste.2015.3061

3-DIMENSIONAL ANALYTICAL SOLUTION FOR LUNAR DESCENT SCHEME

Iranian Journal of Science and Technology Transactions of Electrical Engineering
مقاله 5، دوره 39، E1، شهریور 2015، صفحه 67-77    اصل مقاله (492.13 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22099/ijste.2015.3061
نویسندگان
I. M. MEHEDI* 1؛ T. KUBOTA2؛ U. M. AL-SAGGAF1
1Center of Excellence in Intelligent Engineering Systems (CEIES), King Abdulaziz University, Jeddah, Saudi Arabia AND Electrical and Computer Engineering Department, King Abdulaziz University, Jeddah, Saudi Arabia
2The University of Tokyo, Tokyo, Japan
چکیده
Lunar and Mars landing is a crucial part of any exploration mission. Its importance is manifested by the considerable interest in the past couple of decades. Solution of lunar descent can be either numerical or analytical. Numerical solutions are iterative and computationally demanding and some of them might not be suitable for on-board implementation. On the other hand, analytical solutions are not complex and are much more attractive for the same purposes. All the present analytical solutions schemes are two dimensional considering only altitude and down range to describe the reference trajectories of a lunar descent. The main contribution of this paper is the development of 3-dimensional analytical solution for the reference trajectory which is crucial for a precise landing of a lunar spacecraft. In this investigation cross range distance is incorporated for complete representation. Comparisons are made by simulated responses between numerical and analytical solutions. Detailed mathematical derivations are presented in this paper as well.
کلیدواژه‌ها
Lunar descent؛ Numerical solution؛ analytical solution؛ 3-D modeling
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