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Add Chapter 3 Methodology (#79)

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* feat(latex): initialize new structure for methodology chapter

* feat(latex): initialize sections for methodology chapter including data analysis, materials, and steps

* feat(latex): add detailed description and structure for materials section in methodology chapter

* fix(latex): correct section title from "Bahan dan Materi" to "Benda Uji" to give more context about the thesis

Closes #71

* feat(latex): add section for tools in methodology chapter

* feat(latex): initialize methodology steps with overall clue descriptions of research phases

* feat(latex): add specimen diagram with sensor notation for data representation in methodology chapter

* feat(latex): add diagram for joint and sensors placement in methodology chapter

* feat(latex): update dataset figure and add specimen image in methodology chapter

* feat(latex): expand data analysis section in methodology chapter

* fix(latex): fix citation format for secondary data source in methodology chapter

* feat(latex): add data acquisition section with dataset details and sampling information

* fix(latex): update input paths in methodology chapter for correct file referencing

* feat(latex): add hardware and software sections with detailed descriptions and components used in the research

* Update latex/chapters/id/03_methodology/tool/hardware.tex

fix(latex): Fix figure reference

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update latex/chapters/id/03_methodology/steps/index.tex

chore: remove double slash of image path

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update latex/chapters/id/03_methodology/data_analysis/index.tex

fix(latex): Fix typo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: nuluh <dam.ar@outlook.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit was merged in pull request #79.
This commit is contained in:
Rifqi D. Panuluh
2025-05-23 03:25:23 +07:00
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parent e0fade285a
commit 92fd3acd05
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latex/chapters/id/03_methodology/steps/data_acquisition.tex Normal file
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Dataset yang digunakan dalam penelitian ini bersumber dari basis data getaran yang dipublikasi oleh \textcite{abdeljaber2017}.
Dataset terdiri dari dua folder:
\begin{itemize}
\item \texttt{Dataset A/} – biasanya digunakan untuk pelatihan (training)
\item \texttt{Dataset B/} – biasanya digunakan untuk pengujian (testing)
\end{itemize}
Setiap folder berisi 31 berkas dalam format \texttt{.TXT}, yang dinamai sesuai dengan kondisi kerusakan struktur. Pola penamaan berkas adalah sebagai berikut:
\begin{itemize}
\item \texttt{zzzAU.TXT}, \texttt{zzzBU.TXT} — struktur tanpa kerusakan (sehat)
\item \texttt{zzzAD1.TXT}, \texttt{zzzAD2.TXT}, ..., \texttt{zzzAD30.TXT} — Dataset A, kerusakan pada sambungan 1–30
\item \texttt{zzzBD1.TXT}, \texttt{zzzBD2.TXT}, ..., \texttt{zzzBD30.TXT} — Dataset B, kerusakan pada sambungan 1–30
\end{itemize}
Sepuluh baris pertama dari setiap berkas berisi metadata yang menjelaskan konfigurasi pengujian, laju sampling, dan informasi kanal. Oleh karena itu, data deret waktu percepatan dimulai dari baris ke-11 yang berisi 31 kolom:
\begin{itemize}
\item \textbf{Kolom 1:} Waktu dalam detik
\item \textbf{Kolom 2–31:} Magnitudo percepatan dari \textit{joint} 1 hingga 30
\end{itemize}
Setiap sinyal di-\textit{sampling} pada frekuensi $f_s = 1024$ Hz dan direkam selama durasi total $T = 256$ detik, sehingga menghasilkan:
\begin{equation*}
N = f_s \cdot T = 1024 \times 256 = 262{,}144 \quad \text{sampel per kanal}
\end{equation*}
Dengan demikian, setiap berkas dapat direpresentasikan sebagai matriks:
\begin{equation*}
\mathbf{X}^{(c)} \in \mathbb{R}^{262{,}144 \times 31}, \quad c = 0, 1, \dots, 30
\end{equation*}
di mana $c$ mengacu pada indeks kasus (0 = sehat, 1–30 = kerusakan pada \textit{joint}n ke-$c$), dan setiap baris merepresentasikan pengukuran berdasarkan waktu di seluruh 30 kanal sensor.