Deteksi Kerusakan Bearing Menggunakan Komponen Utama Kernel

Authors

  • Allyaa Putri Asti Statistika, Universitas Islam Bandung
  • Sutawanir Darwis

DOI:

https://doi.org/10.29313/jrs.v3i1.1771

Keywords:

Deteksi Kerusakan Bearing, Komponen Utama Kernel, Vibrasi Bearing

Abstract

Abstract. Various factors can cause bearing damage, this is a major problem because it can cause substansial losses and affect production schedules. It is recommended to control bearing damage in order to provide early information about the damage. The method used in this paper is Hotelling T2 through Kernel Principal Component Analysis(KPCA). The principal component of kernel used to construct Hotelling T2 statistics in order to obtain T2 statistical values for detection bearing damage. The purpose of this paper is to apply KPCA as a statistic to use normal and damaged bearing. Data from NASA Bearing Dataset that contains normal bearing and damage bearing. Data divided into 1153 data for training and 323 data for testing.  In this paper, 8 features are used as input for KPCA, reduced to 6 kernel principal component. Training data can obtained eigenvalue as input Hotelling T2, testing is used to detect bearings condition. Bearings are detected to damaged when T2 > 12.6939 with a significance level of  5%, from 323 training data 294 observations detected as damaged bearings and 29 observations detected as normal bearings. After conducting research, KPCA method can use to detect bearing damage.

Abstrak. Berbagai faktor dapat menyebabkan kerusakan bearing, hal ini merupakan masalah utama karena dapat menyebabkan kerugian cukup besar dan mempengaruhi jadwal produksi. Dianjurkan  mengontrol kerusakan  bearing agar dapat memberikan informasi  awal  kerusakan bearing. Metode digunakan dalam penelitian Hotelling T2 melalui komponen utama kernel. Komponen utama kernel digunakan untuk mengkontruksi statistik Hotelling T2 sehingga diperoleh nilai statistik T2 untuk deteksi kerusakan bearing. Tujuan  penelitian  adalah menerapkan  komponen utama kernel sebagai statistik untuk menggunakan Hotelling T2 bearing normal dan bearing rusak.  Data sekunder NASA Bearing Dataset berisikan data bearing normal serta data bearing rusak. Proses deteksi bearing melalui komponen utama kernel dibagi menjadi data training sebanyak 1153 data sedangkan data testing sebanyak 323 data. Berdasarkan hasil penelitian,  8 fitur dijadikan sebagai input komponen utama kernel, direduksi menjadi enam komponen utama kernel. Menggunakan data training diperoleh  nilai eigen sebagai input Hotelling T2,  data testing digunakan untuk mendeteksi kondisi bearing.  Bearing terdeteksi rusak ketika statistik T2 > 12.6939. Dengan taraf signifikansi 5 %, didapatkan sebanyak 294 data pengamatan dari 323 terdeteksi merupakan bearing rusak sedangkan sisanya 29 data pengamatan terdeteksi merupakan bearing normal. Setelah dilakukan penelitian metode komponen utama kernel layak digunakan untuk mendeteksi kerusakan  bearing.

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Published

2023-07-17