Reactive Scheduling Based on Adaptive Manipulator Operations in a Job Shop Configuration with Two Machines

Autor:	Haruhiko Suwa, Ryo Yonemoto
Rok vydání:	2021
Předmět:	Reactive scheduling Job shop scheduling Computer science Job shop Mechanical Engineering Manipulator Industrial engineering Industrial and Manufacturing Engineering
Zdroj:	International Journal of Automation Technology. 15:661-668
ISSN:	1883-8022 1881-7629
DOI:	10.20965/ijat.2021.p0661
Popis:	Manufacturing systems are affected by uncertainties, such as machine failure or tool breakage, which result in system downtime and productivity deterioration. In machining processes, system downtime must be reduces. This study aims to establish an automated scheduling technique that flexibly responds to unforeseen events, such as machine failure, based on adaptive operations of the handling manipulator instead of an operation schedule for the machine tools. We propose an “adaptive manipulation” procedure for establishing a reactive revision policy. The reactive revision policy modifies a portion of the manipulator operation sequence, followed by the machine operation sequence. We conduct a physical scheduling simulation on a material-handling manipulator system imitating a job-shop manufacturing system. Through simulations involving machine breakdown scenarios, the applicability of the reactive revision policy based on adaptive manipulation is demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5bf8574961fde95f6445b89361709f6 https://doi.org/10.20965/ijat.2021.p0661 Zobrazit plný text záznamu