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基于約束滿足方法求解熱軋帶鋼庫存匹配問題

Solving the inventory matching problem of hot rolling strips based on the constraint satisfaction method

  • 摘要: 針對現代鋼鐵企業生產管理中的客戶訂單與熱軋帶鋼庫存產品的匹配問題,在考慮規格、質量、等級以及生產工藝約束的基礎上,建立了旨在最大化訂單滿足率且最小化匹配損失的約束滿足模型.在對問題以及匹配對象特點進行分析的基礎上,引入匹配損失矩陣作為訂單與庫存余材屬性匹配差異的損失懲罰,考慮到問題的復雜性,采用基于變量選擇和值選擇的啟發式算法求解模型的近優解,并通過數值實驗對提出的算法進行了驗證.

     

    Abstract: Aiming at maximizing the utilization of orders fulfillment and minimizing matching cost, a constraint satisfaction model was established for customer orders and the inventory matching problem of hot rolling strips in modern steel enterprise, considering steel specification, weight, grade, production process, and other constraints. Based on analyzing the characteristics of the problem and the matching objects, a matching loss matrix was introduced regarding as the loss penalty of the different matching result of orders and inventory surplus. Taking advantage of the complication of the issue, a heuristic algorithm, which is based on variable selection and value selection, was presented to solve the model in sequence. Numerical experiment was given to validate the proposed algorithm.

     

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