Abstract

Reliability is used to estimate the conditions of systems or components in the future based on previous conditions. The objects of this research are EC 155B1 aircrafts owned by Indonesia Air Transport & Infrastrucure (IAT), and the method used for analysis is markov analysis. Markov analysis is widely used as an analyzing technique the states of the system that has limited information (memoryless). From this research, ATA chapter 62 Main Rotor that meets the requirements of reliability analysis. The constituent components of main rotor states are Pin Blade, Lower Attach Beam, and Upper Attach Beam. The results of the markov analysis of main rotor system, the states that worked properly are state 1, state 3, and state 4. The probability of the state 1 showed that state has decreased from initial condition, while the state 3 and state 4 have increased from initial condition and subsequently have decreased. The reliability of main rotor system has decreased along with increasing of flight hours with the Mean Time To Failure (MTTF) is 2340.22 flight hours.

Highlights

  • Reliability is used to estimate the conditions of systems or components in the future based on previous conditions

  • EC 155B1 aircrafts owned by Indonesia Air Transport

  • the method used for analysis is markov analysis

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Summary

Introduction

Probabilitas yang bekerja di dalam sistem memuat fungsi dari state pada periode tertentu dan digunakan berdasarkan kondisi tertentu [5]. Penulis hanya menggunakan state equation dari sistem yang masih bekerja untuk menentukan probabilitas dan reliability dari sistem tersebut. Berdasarkan seluruh mekanisme pemilihan ATA Chapter dan komponen tersebut, dipilihlah ATA Chapter 62 Main Rotor untuk dianalisis tingkat keandalannya dengan komponen penyusun state-nya antara lain : Pin Blade, Lower Attach beam, dan Upper Attach Beam.

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