Joint optimisation on maintenance policy and resources for multi-unit parallel production system

Multi-unit parallel production systems (MuPPSs) widely exist in many industry areas. A general requirement for the MuPPS is that each system should continuously run and its downtime be as short feasible. For such systems, optimising preventive maintenance (PM) policy crucial so resources number of spare units repairmen can optimally used. On this basis, paper develops an optimal model jointly PM units, which genetic algorithm used to determine displacement sequence units. According developed model, a real case study train working line presented demonstrate necessity. Finally, sensitivity analysis conducted assess influence some parameters on results.