A Simulation Model Of The Maintenance Cycle Of Royal Malaysian Navy Ships
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Date
1993-12
Authors
ABD. HALIM, MAHAMUD SAYUTI
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Abstract
Currently, the planning arId scheduling of Royal Malaysian Navy
(RMN) ships for preventive maintenance routine, i.e. Slipping, DED and
Refit at shipyard, is done based on the existing policy cycle which has
the constraint that a maximum of 1/3 of the total number of ships could
undergo maintenance routine at shipyard at anyone time. Unfortunately
in actual practice, i. e. the actual time taken to go through the cycle
is usually more than that of the existing policy cycle due to various
reasons. As a result of this, RMN run into difficulties in the planning
and scheduling of ships for preventive maintenance routine as well as
operational requirement.
There is therefore a need to study ways to overcome this problem.
In this research, we determine whether the existing policy cycle can be
followed. If the existing policy cycle cannot be followed due to
unavoidable factors, then a simulation model is to be developed to
propose a new cycle based on the previous available data so that
planning and schedul ing of ships for maintenance routines as well as
operational requirement could be carried out more efficiently and
effectively. In addition, we will also determine the average time each
ship spent waiting in\the queue for maintenance routine, and the effect
of increasing the total number of ships on the total cycle time.
The 95 % confidence interval for mean time estimate of the Refit,
OED/Slipping, Operational time, average waiting time and total cycle
time are also studied using simulation approach.
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Keywords
A Simulation Model Of The Maintenance Cycle , Of Royal Malaysian Navy Ships