Model of Spare Parts Optimization Based on System Supply Availability

摘要

Spare parts optimization which means finding the number of spare parts to achieve the target reliability value provided that the minimum cost and other system reliability conditions are satisfied is of crucial importance in industry. In the paper, the mathematic model for spare parts optimization is established based on system availability and the constraints are set as the practical engineering requirements. The marginal effect analysis method is then applied in optimization model. Further the improved Barlow optimization algorithm is used to obtain the optimal configuration of spare parts. Application results show that an optimized initial configuration scheme is obtained and all the constraints are satisfied including minimum cost and achieving the target system reliability value.