A PERFORMANCE EVALUATION MODEL FOR FMS BASED ON RAM AND LCC USING FACTOR AIM/

The objective of this study is to develop a general design and perform ance evaluation model for the system designers in the initial design p hase of the integrated manufacturing system based on the RAM(Reliabili ty, Availability and Maintainability) and life cycle cost(LCC). The me thodology proposed in this research includes the following three-step generative approach. First, a deterministic approach to find the optim al system configuration for the initial system configuration is consid ered under the assumption that the system availability is one(no failu re and maintenance), and in second step a stochastic simulation model based on RAM and LCC is developed. Using the results of this two-stage simulation, a system performance index(SPI) was developed for the per formance evaluation of the system. In the last step we developed a sim ulation model using FACTOR/AIM to consider a variety of performance fa ctors and compared the results through a sample example.