Scheduling and Common Due Date Assignment on a Single Parallel-Batching Machine with Batch Delivery

Autor: Hua Gong, Biao Zhang, Wuliang Peng
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Discrete Dynamics in Nature and Society, Vol 2015 (2015)
Druh dokumentu: article
ISSN: 1026-0226
1607-887X
DOI: 10.1155/2015/464390
Popis: We consider a single parallel-batching machine scheduling problem with delivery involving both batching scheduling and common due date assignment. The orders are first processed on the single parallel-batching machine and then delivered in batches to the customers. The batching machine can process several orders at the same time. The processing time of a production batch on the machine is equal to the longest processing time of the orders assigned into this batch. A common due date for all the orders in the same delivery batch and a delivery date for each order need to be determined in order to minimize total weighted flow time. We first prove that this problem is NP hard in the strong sense. Two optimal algorithms by using dynamic programming are derived for the two special cases with a given sequence of orders on the machine and a given batching in the production part, respectively.
Databáze: Directory of Open Access Journals