The Influence of Mechanical Agitation Speed on the Movement of Molten Aluminum Alloy and Semisolid Billets Preparation

The multi-echelon inventory control of repairable spare parts is an important problem for equipment support. To satisfy the practical requirement of equipment support in the PLA, the four-echelon inventory problem for repairable spare parts with two-indenture was formulated in this paper. The simulative instance of the four-echelon inventory problem for repairable spare parts with two-indenture was solved by our previous proposed genetic algorithm.