RISK ANALYSIS BY COMBINING FAULT TREE ANALYSIS (FTA) AND ANALYTIC HIERARCHY PROCESS (AHP) METHOD APPLICABLE TO CANE CUTTER MACHINE
Abstract: 2000 times of
downtime had been occurred during year 2013 to 2014 in Tjoekir sugar factory.
The most serious downtime occurred in mill. Fault Tree Analysis (FTA) was
employed to analyze the probability score and implement Analytic Hierarchy
Process (AHP) to find out impact score of risk event. The results of FTA
indicate that risk event in cane cutter blade had the highest probability
score, while results of AHP shows that the decrease of steam pressure in
turbine drive had the highest impact score. The scores classified in risk class
and mapped in risk matrix show that there were three risk events. Tjoekir has
to set a conveyor gate to filter canes before being received by the machine,
use blades with the thickness not exceed 22 cm to avoid fatigue, and check
harvested cane thoroughly that is loaded onto carriers to ensure no machete is
accidently loaded with the cane.
Penulis: Oyong Novareza
Kode Jurnal: jptindustridd170005
