Scheduling in two-machine robotic cells with a self-buffered robot

Date

2016-02-01

Author

Gündoğdu, Emine
GÜLTEKİN, HAKAN

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

197
views

0
downloads

This study considers a production cell consisting of two machines and a material handling robot. The robot has a buffer space that moves with it. Identical parts are to be produced repetitively in this flowshop environment. The problem is to determine the cyclic schedule of the robot moves that maximizes the throughput rate. After developing the necessary framework to analyze such cells, we separately consider the single-, double-, and infinite-capacity buffer cases. For single- and double-capacity cases, consistent with the literature, we consider one-unit cycles that produce a single part in one repetition. We compare these cycles with each other and determine the set of undominated cycles. For the single-capacity case, we determine the parameter regions where each cycle is optimal, whereas for the double-capacity case, we determine efficient cycles and their worst-case performance bounds. For the infinite-capacity buffer case, we define a new class of cycles that better utilizes the benefits of the buffer space. We derive all such cycles and determine the set of undominated ones.We perform a computational study where we investigate the benefits of robots with a buffer space and the effects of the size of the buffer space on the performance. We compare the performances of self-buffered robots, dual-gripper robots, and robots with swap ability.

Subject Keywords

Robotic Cell Scheduling, Throughput Optimization, Flexible Manufacturing Systems

URI

https://hdl.handle.net/11511/56538

Journal

IIE TRANSACTIONS

DOI

https://doi.org/10.1080/0740817x.2015.1047475

Collections

Department of Industrial Engineering, Article

Suggestions

OpenMETU
Core

Scheduling a dual gripper material handling robot with energy considerations Gürel, Sinan; Gultekin, Hakan; Emiroglu, Nurdan (2023-04-01) Robotic cells are serial production systems that consist of a number of machines and a material handling robot that transfers parts between the machines. Energy consumption of a robot during its move between two machines can be decreased by carefully selecting its speed. This paper presents models and algorithms that make robot speed and robot activity sequencing decisions together for a dual-gripper robot that can handle two parts simultaneously. We consider both robot energy consumption and cycle time obj...
Energy conscious scheduling of a material handling robot in a manufacturing cell Gürel, Sinan; Akhlaghi, Vahid Eghbal (Elsevier BV, 2019-08-01) In cyclic scheduling of material handling robots in manufacturing cells, a common approach is to minimize the cycle time objective, which is a measure of the throughput of the cell. In a typical robot move cycle, robot move times constitute a significant portion of the cycle time. During handling operations, robots consume significant amount of energy, which is determined by their speed, load and the distance they travel. In this paper, we propose considering robot speed decisions along with robot move sequ...
Bicriteria scheduling of a material handling robot in an m-machine cell to minimize the energy consumption of the robot and the cycle time Gultekin, Hakan; Gürel, Sinan; Taspinar, Rabia (2021-12-01) This study considers a flowshop type production system consisting of m machines. A material handling robot transports the parts between the machines and loads and unloads the machines. We consider the sequencing of the robot moves and determining the speeds of these moves simultaneously. These decisions affect both the robot's energy consumption and the production speed of the system. In this study, these two objectives are considered simultaneously. We propose a second order cone programming formulation to...
Energy conscious machine and robot speed decisions in two machine robotic cell scheduling Güzel, Betül Necibe; Gürel, Sinan; Department of Industrial Engineering (2021-6-15) Minimizing cycle time has always been a critical objective in manufacturing cells. Recently, energy efficient and environmentally conscious manufacturing practices have received increasing attention from researchers and practitioners. Therefore, in this thesis we consider a 2-machine manufacturing cell with a material handling robot where two conflicting objectives exist: minimization of cycle time and energy consumption. It is a flow type cell where identical parts are first processed on the first machine ...
Energy Efficient Scheduling in Flow-shop and Parallel Machine Robotic Cells Aydoğan, Çiya; Gürel, Sinan; Department of Industrial Engineering (2021-9-10) Robotic cell scheduling studies mostly focus on increasing the throughput of the cell. Therefore, those studies consider cycle time or makespan minimization objectives. However, energy-efficient and environmentally sensitive manufacturing operations become more important and receive attention in recent studies in the literature. In this thesis, we study two robotic cell scheduling problems with machines and a material handling robot. We consider robot energy consumption as an objective to minimize while max...

Citation Formats

E. Gündoğdu and H. GÜLTEKİN, “Scheduling in two-machine robotic cells with a self-buffered robot,” IIE TRANSACTIONS, pp. 170–191, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56538.