ANALISIS RISIKO DAN PREDIKSI KEGAGALAN SISTEM HIDROLIK SKYLIFT TRUCK MENGGUNAKAN INTEGRASI METODE FMEA DAN BAYES’ THEOREM DI CV.XYZ

Emerald Nadi Prasetya, . (2025) ANALISIS RISIKO DAN PREDIKSI KEGAGALAN SISTEM HIDROLIK SKYLIFT TRUCK MENGGUNAKAN INTEGRASI METODE FMEA DAN BAYES’ THEOREM DI CV.XYZ. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.

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Abstract

CV XYZ is a body manufacturing company that focuses on producing specialized vehicles such as skylift trucks. CV XYZ faces two operational challenges, namely the absence of a systematic failure risk analysis and the ineffectiveness of field diagnosis. The purpose of this study is to identify and determine critical failures using Failure Mode and Effect Analysis (FMEA) and to develop a failure probability model based on symptoms using Bayes’ Theorem. FMEA is first applied to calculate the RPN values of 27 failure modes based on expert assessments. Critical failure modes (RPN > 159.35) then become the hypotheses (H) for Bayes’ Theorem, which are combined with symptom data (E). The FMEA results identified 6 critical failure modes, where the main finding shows that “Pump Jammed” (I1) is the highest priority (RPN 310.33), correcting the company’s previous focus on “Telescopic Cylinder Deformation” (A1) (RPN 298). The Bayes’ Theorem model proves to be effective, as several failure modes demonstrated high posterior probabilities in relation to specific symptoms, such as A1 when oil leakage occurs (P=1), C1 when overheating occurs (P = 1), and I1 when engine stall occurs (P=1). This study successfully provides a systematic failure risk analysis and produces a data-driven failure probability model capable of replacing subjective identification processes in the field.

Item Type: Thesis (Skripsi)
Additional Information: [No.Panggil: 2110312074] [Pembimbing: Yulizar Widiatama] [Penguji 1: Alina Cynthia Dewi] [Penguji 2: Siti Rohana Nasution]
Uncontrolled Keywords: FMEA, Bayes’ Theorem, Failure Probability
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Fakultas Teknik > Program Studi Teknik Industri (S1)
Depositing User: EMERALD NADI PRASETYA
Date Deposited: 23 Jan 2026 03:50
Last Modified: 23 Jan 2026 03:50
URI: http://repository.upnvj.ac.id/id/eprint/41666

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