Energy efficient scheduling of a two machine robotic cell producing multiple part types


AYDOĞAN Ç., GÜREL S.

Flexible Services and Manufacturing Journal, vol.36, no.4, pp.1324-1358, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 4
  • Publication Date: 2024
  • Doi Number: 10.1007/s10696-023-09528-4
  • Journal Name: Flexible Services and Manufacturing Journal
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Compendex, Computer & Applied Sciences, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Page Numbers: pp.1324-1358
  • Keywords: Energy consumption, Flow-shop cell, Robot scheduling, Robot speed control
  • Middle East Technical University Affiliated: Yes

Abstract

This paper studies robot speed control decisions and the energy consumption objective in a cyclic robotic cell scheduling problem. The study considers a two-machine flow shop cell that produces multiple part types. A robot handles the parts between the machines and buffers. We assume that the energy consumption of the robot during a move is a convex function of its speed. The problem is to sequence the parts, construct a robot move sequence, and plan the robot’s speed levels to minimize two conflicting objectives: cycle time and energy consumption of the robot. We propose mathematical models that find Pareto-efficient solutions to the problem. For large instances, we propose heuristic search algorithms. Numerical results show that integrating robot speed decisions into the scheduling problem leads to significant energy saving.