Maintenance scheduling for Diesel Generator support system of Container Crane using system dynamic modeling

摘要

The number of container ships arrived to the container terminals in Port of Tanjung Perak Surabaya increase continuously year by year. The supporting infrastructures, including CC (Container Crane), are required to serve the loading-unloading of containers. This final project attempted to answer these demands by planning the maintenance schedules for CC Diesel Generator fuel and lubricating systems. Maintenance scheduling is important because it will be adapted to the CC operational pattern so that the maintenance activities as much as possible not to disturb the loading-unloading schedule. System dynamics method is used for modeling the behavior of the system so that proper scheduling can be obtained through the mechanism of determining the minimum reliability index value and availability. In addition to the total cost of the operation, that consists of running, maintenance, and downtime costs, will also become a consideration in determining the maintenance schedule. From the modeling, maintenance scheduling for the component such as fuel pump is every 4578 hours (for CC 1 and 2) and 4296 hours (for CC 3), separator is every 1453 hours (for CC 1 and 2) and 1439 hours (for CC 3), PT Pump is every 10169 hours (for CC 1 and 2) and 7774 hours (for CC 3), injector is every 4065 hours (for CC 1 and 2) and 3887 hours (for CC 3), oil pump is every 13559 hours for (CC 1 and 2) and 19435 hours for (CC 3). Then, for the other components such as fuel filter, oil filter and bypass oil filter which includes non-repairable component, will be replaced by the new one in every 256 hours for CC 1, 256 hours for CC 2, and 256 hours for CC 3.