Estimasi Keandalan Sistem Mekanikal Dependen Menggunakan Fungsi Copula
DOI:
https://doi.org/10.26593/jrsi.v13i2.7219.103-112Kata Kunci:
Keandalan, Fungsi Copula, Sistem Mekanikal, Kasus dependensi, KorelasiAbstrak
Paper ini mengatasi tantangan dalam menilai keandalan sistem mekanikal kompleks di mana komponen-komponennya secara inheren berkorelasi dalam mode kegagalan mereka. Secara tradisional, asumsi independen di antara komponen-komponen ini telah digunakan, tetapi seringkali gagal untuk menangkap kompleksitas dunia nyata. Untuk mengatasi keterbatasan ini, fungsi copula diperkenalkan sebagai metodologi yang kuat untuk memodelkan hubungan yang saling bergantung antara variabel-variabel yang berkorelasi dalam sistem mekanikal. Paper ini bertujuan untuk mendemonstrasikan kegunaan copula dalam memperkirakan keandalan sistem dengan mempertimbangkan dependensi ini. Hasil penelitian menunjukkan bahwa copula Clayton muncul sebagai model yang paling cocok untuk merepresentasikan dependensi dalam sistem-sistem seperti itu. Yang lebih penting, estimasi keandalan yang diperoleh melalui metode berbasis copula tidak hanya mencerminkan interdependensi yang kompleks dengan akurat, tetapi juga sejalan dengan prinsip-prinsip teori batas keandalan. Penelitian ini menggarisbawahi potensi estimasi keandalan berbasis copula sebagai alternatif yang aplikatif, menawarkan penilaian keandalan yang lebih komprehensif dan akurat dalam sistem mekanikal kompleks dan memiliki potensi besar untuk aplikasi rekayasa praktis. Metode yang diusulkan dapat digunakan untuk memodelkan hubungan antar variabel yang sering kali diabaikan dalam praktik rekayasa.
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