Enlarging the trim-loss problem to cover the raw paper mill

作     者：Harjunkoski, I Westerlund, T 

作者机构：Abo Akad Univ Dept Chem Engn Proc Design Lab FIN-20500 Abo Finland 

出 版 物：《COMPUTERS & CHEMICAL ENGINEERING》 (计算机与化工)

年 卷 期：1998年第22卷第sup1期

页      面：S1019-S1022页

核心收录：

学科分类：0817[工学-化学工程与技术] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：optimization mixed integer linear programming trim loss problems scheduling problems 

摘      要：The trim-loss problem appears when a customer s demand is to be satisfied in a paper converting mill. A set of product paper reels need to be cut from raw-paper reels. The problem is by nature an integer problem and therefore gives rise to a difficult combinatorial problem. Maybe the most difficult problem beside. the combinatorics, is the fact that the paper converting mill needs to adapt itself to both the customer specified widths and the raw paper widths that are delivered from a raw paper mill. This fact makes it difficult to avoid material losses during the process. In the present paper some key issues are considered as to the combining the paper mill and the paper converting mill. (C) 1998 published by Elsevier Science Ltd. All rights reserved.