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Connor Johnstone
2022-04-18 13:49:03 -06:00
parent 5b6656a9a6
commit 452afb935d
4 changed files with 82 additions and 35 deletions
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2
LaTeX/approach.tex
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@@ -525,7 +525,7 @@
\begin{figure}[H]
\centering
\includegraphics[width=\textwidth]{LaTeX/fig/mbh_analysis}
\caption{MBH cost function reduction over time}
\caption{MBH cost function reduction over iterative updates}
\label{mbh_analysis}
\end{figure}

92
LaTeX/results.tex
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@@ -20,7 +20,7 @@
same zone as that of the Cassini spacecraft, which launched with 5712 kilograms of total
mass, with the fuel accounting for 2978 of those kilograms\cite{cassini}. The dry mass of
the spacecraft was chosen to be extremely low in order to allow for a variety of
''successful`` missions in which the spacecraft didn't run out of fuel. That way, the
``successful'' missions in which the spacecraft didn't run out of fuel. That way, the
delivered dry mass to Saturn could be thought of as a metric of success, without discounting
mission that may have delivered just under whatever more realistic dry mass one might set,
in case those missions are in the vicinity of actually valid missions.
@@ -106,41 +106,71 @@
was recorded. The resultant cost function values of each of those discovered missions
can be found in the table below:
\begin{table}[H]
\centering
\begin{adjustbox}{height=0.3\textheight}
\begin{tabular}{ | c c c c | }
\begin{longtable}{
|
>{\centering}p{0.75in}
>{\centering}p{1.25in}
>{\centering}p{1.1in}
>{\centering}p{1in}
>{\centering}p{0.8in}
>{\centering\arraybackslash}p{0.8in}
|
}
\hline
\bfseries Flyby Selection &
\bfseries Cost Function Value &
\bfseries Flyby Selection &
\bfseries Cost Function Value \\
\bfseries Mass Delivered (kg) &
\bfseries Time of Flight (years) &
\bfseries Launch $C_3$ ($\frac{\text{km}^2}{\text{s}^2}$) &
\bfseries Arrival $V_\infty$ Norm \\
\hline
EMS & 0.64797 & EMJS & 0.66014 \\
EMS & 0.68828 & EMS & 0.69704 \\
EMJS & 0.74576 & EMJS & 0.79745 \\
EMJS & 0.80372 & EMJS & 0.82510 \\
EMMJS & 0.91149 & EMJS & 0.94148 \\
EMJS & 0.96141 & EMS & 1.02972 \\
EJS & 1.12848 & ES & 1.23167 \\
EVMS & 1.32600 & EMS & 1.32879 \\
EMS & 1.33779 & EMJS & 1.39527 \\
EVMS & 1.41517 & EVMS & 1.45960 \\
EVMS & 1.46649 & EVMS & 1.52207 \\
EVMS & 1.59234 & EVMJS & 1.66943 \\
EMS & 1.70295 & EMJS & 1.70438 \\
EMS & 1.78107 & EVVJS & 2.0106 \\
EMJS & 2.15952 & EJS & 2.16216 \\
EMJS & 2.22167 & EMMJS & 2.38431 \\
EMJS & 2.42457 & EMMJS & 2.46453 \\
EVVJS & 2.49257 & EMJS & 2.49485 \\
EVMS & 2.71118 & EMJS & 2.76812 \\
\endhead
ES & 0.555 & 3423.49 & 5.945 & 97.89 & 0.009 \\
ES & 0.5551 & 3422.41 & 5.945 & 97.73 & 0.0 \\
ES & 0.5553 & 3425.31 & 5.897 & 98.26 & 0.0 \\
ES & 0.561 & 3403.47 & 5.945 & 95.65 & 0.0 \\
ES & 0.5612 & 3406.47 & 5.894 & 96.22 & 0.002 \\
EMS & 0.648 & 3130.77 & 8.451 & 66.3 & 6.391 \\
EMJS & 0.6601 & 2962.65 & 14.107 & 39.91 & 3.636 \\
EMS & 0.6883 & 3004.49 & 9.229 & 52.71 & 4.245 \\
EMS & 0.697 & 3037.04 & 7.984 & 60.04 & 6.021 \\
EMJS & 0.7458 & 2837.9 & 14.036 & 35.65 & 4.816 \\
EMJS & 0.7975 & 1905.95 & 12.99 & 16.92 & 2.686 \\
EMJS & 0.8037 & 2652.62 & 13.793 & 15.48 & 3.209 \\
EMJS & 0.8251 & 2760.39 & 13.857 & 38.23 & 3.818 \\
EMMJS & 0.9115 & 2528.08 & 15.853 & 15.68 & 3.189 \\
EMJS & 0.9415 & 2484.97 & 16.33 & 14.29 & 2.021 \\
EMJS & 0.9614 & 2511.65 & 15.756 & 22.85 & 3.393 \\
EMS & 1.0297 & 1655.14 & 10.412 & 3.18 & 4.529 \\
EJS & 1.1285 & 1734.51 & 15.725 & 41.98 & 2.595 \\
ES & 1.2317 & 1639.1 & 9.248 & 39.72 & 5.785 \\
EVMS & 1.326 & 2241.72 & 8.87 & 49.49 & 4.977 \\
EMS & 1.3288 & 1400.47 & 7.843 & 1.87 & 5.634 \\
EMS & 1.3378 & 2705.69 & 15.848 & 131.39 & 5.151 \\
EMJS & 1.3953 & 1904.96 & 13.813 & 5.62 & 5.146 \\
EVMS & 1.4152 & 1963.98 & 11.315 & 19.72 & 9.117 \\
EVMS & 1.4596 & 1963.09 & 11.885 & 28.45 & 6.7 \\
EVMS & 1.4665 & 1915.47 & 11.691 & 21.67 & 8.919 \\
EVMS & 1.5221 & 1966.29 & 12.002 & 41.49 & 7.085 \\
EVMS & 1.5923 & 1811.71 & 7.612 & 29.05 & 8.892 \\
EVMJS & 1.6694 & 2324.68 & 14.203 & 132.4 & 5.346 \\
EMS & 1.7029 & 1652.8 & 12.064 & 23.93 & 8.898 \\
EMJS & 1.7044 & 1687.48 & 17.45 & 30.16 & 6.148 \\
EMS & 1.7811 & 1504.33 & 18.067 & 14.1 & 3.195 \\
EVVJS & 2.0106 & 1362.61 & 14.71 & 35.72 & 6.315 \\
EMJS & 2.1595 & 1026.4 & 17.548 & 7.86 & 7.977 \\
EJS & 2.1622 & 1543.52 & 12.96 & 97.03 & 9.42 \\
EMJS & 2.2217 & 2055.3 & 21.583 & 196.67 & 2.074 \\
EMMJS & 2.3843 & 730.68 & 14.754 & 2.12 & 6.915 \\
EMJS & 2.4246 & 1470.46 & 24.186 & 136.99 & 1.749 \\
EMMJS & 2.4645 & 971.97 & 16.935 & 59.53 & 7.34 \\
EVVJS & 2.4926 & 908.6 & 15.287 & 54.28 & 3.942 \\
EMJS & 2.4948 & 872.56 & 12.943 & 48.55 & 8.548 \\
EVMS & 2.7112 & 726.4 & 12.263 & 66.76 & 9.478 \\
EMJS & 2.7681 & 496.32 & 16.0 & 38.71 & 10.348 \\
\hline
\end{tabular}
\end{adjustbox}
\caption{Table of resultant cost function values for every discovered mission}
\label{cost_fn_table}
\end{table}
\caption{Table of resultant cost function values for every discovered mission}\label{cost_fn_table}\\
\end{longtable}
\section{Faster, Less Efficient Trajectory}

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LaTeX/thesis.tex
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@@ -8,6 +8,8 @@
\usepackage{float}
\usepackage{xfrac}
\usepackage{adjustbox}
\usepackage{longtable}
\usepackage{array}
\title{Designing Optimal Low-Thrust Interplanetary Trajectories Utilizing Monotonic Basin Hopping}
\author{Richard C.}{Johnstone}

21
julia/cost_table.jl
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@@ -21,8 +21,21 @@ end
function get_id(m::Mission)
letters = "E"
for phase in m.phases letters *= phase.planet.name[1] end
letters *= " "
letters *= string(cost(m))
letters *= " & "
letters *= string(round(cost(m), digits=4))
letters *= " & "
letters *= string(round(prop(m)[7], digits=2))
letters *= " & "
tof = 0.0
for phase in m.phases
tof += phase.tof
end
letters *= string(round(tof/(86400*365.), digits=3))
letters *= " & "
letters *= string(round(m.launch_v∞ ⋅ m.launch_v∞, digits=2))
letters *= " & "
letters *= string(round(norm(m.phases[end].v∞_in), digits=3))
letters *= " \\\\"
return letters
end
@@ -38,5 +51,7 @@ end
sorted_missions = sort(missions, by=cost)
@show get_id.(sorted_missions)
for mission in sorted_missions
println(get_id(mission))
end