CRITICAL COMPONENT DETERMINATION ANALYSIS ON DIESEL GENERATOR CATERPILLAR TYPE 3412C WITH RELIABILITY METHOD

Abstract

Diesel generators are aircraft that are very important for the smooth operation of a ship.
Diesel generator functions as a source of electrical voltage. So that if it is damaged, all aircraft
on the ship that require electricity do not work and the ship is not likely to operate. With the
passage of time, the diesel generator will certainly not escape damage, both minor damage and
heavy damage. One of them is the damage that occurs in the Diesel Generator IV Caterpillar
type 3412 C owned by KRI Ahmad Yani-351 in the Koarmada II area of Surabaya. With this
research, an analysis of damaged diesel generator components will be carried out. The damage
data is obtained from the company providing diesel generator repair services, namely PT. Tesco
Indomaritim or damage journal from the ship to be analyzed by FMECA (Failure Modes Effect
& Critical  Analysis) method and reliability method with weibull ++ 6. After analyzing, the
most critical component of the diesel generator is obtained, namely in the Piston Ring which is
known as the reliability value equal to 0.578026, Probability of failure equals 5.7791E-05 and
Failure rate is 9 , 9980E-05 with the weibull ++ 6 software.
Keywords : Time to failure(TTF),Weibull ++6, FMECA