Title: Effect of lot streaming and dispatching rules in a dynamic flowshop with missing operations

Authors: J. Laxmi Lalitha; V. Madhusudanan Pillai

Addresses: Mechanical Engineering Department, Bapatla Engineering College, Bapatla, Guntur District, Andhra Pradesh, India ' Department of Mechanical Engineering, National Institute of Technology Calicut, Kozhikode, Kerala, India

Abstract: A simulation model of a dynamic flowshop with missing operations is developed in plant simulation software having throughput, mean flow time (MFT), and work-in-process (WIP) as performance measures. The problem is to investigate the best dispatching rule and sub-lot size under lot streaming. Eight dispatching rules are considered under three levels of critical-machine utilisation (57%, 79%, and 87%). The measures are tested for significance using ANOVA and only MFT and WIP are found significant. The smaller sub-lot performs better for all the dispatching rules. At a higher utilisation level, FIFO performs best. GRA technique is applied to 79% utilisation level and results reveal FIFO performing best.

Keywords: lot streaming; flowshop with missing operations; simulation; dispatching rules; ANOVA; grey relational analysis; GRA.

DOI: 10.1504/IJBDA.2022.124055

International Journal of Business and Data Analytics, 2022 Vol.2 No.1, pp.33 - 51

Received: 30 Apr 2019
Accepted: 03 Dec 2019

Published online: 11 Jul 2022 *

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