Simulation modeling of shop floor activities for smes in virtual enterprises

Download

index.pdf

Date

2005

Author

Bahtiyar, Mustafa

Metadata

Show full item record

Item Usage Stats

248
views

123
downloads

The globalization of the markets and the worldwide competition forces the SMEs to implement new technologies and organize themselves using new concepts in order to maintain their competitivity. This type of temporary alliance is called as Virtual Enterprise (VE). SMEs seem to be appropriate units for building this type of temporary alliances when their properties (such as flexibility, adaptability and agility) are taken into account. This study is concerned with the simulation modeling of shop floor activities for SMEs in VEs. Analyzing the SMEs with their current and new work load over the existing one by using simulation tool may help the VE management unit to see the most appropriate SMEs for the projects. Because of mentioned advantages, this thesis will test whether the simulation tool will or will not be used in the selection of the VE partner. The simulation methodology for modeling shop floor activities of SMEs was developed by using ARENA simulation tool in this thesis. A hydraulic cylinder company was selected for pilot application. Manufacturing of twelve basic hydraulic cylinders was studied in the developed model. Four different queue rules were applied to the developed model to optimize the system efficiency. By analyzing the output statistical results of ARENA which were obtained with the usage of the input variables of SME (such as resource capacities, process times, setup and remove times of parts, variables wrt to workers, etc.) best manufacturing policy for pilot SME was able to be found. To see the response of the system under different circumstances, grinding and hardening operations for a drive shaft manufacturing were assigned to the company. This new job was applied on two models (Base Model and Optimized System Model) and the statistical results of each were examined.

Subject Keywords

Mechanical engineering.

URI

http://etd.lib.metu.edu.tr/upload/12606184/index.pdf
https://hdl.handle.net/11511/15160

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Simulation of flexible manufacturing systems: a pilot implementation Yücel, Necati Deniz; Kılıç, Sadık Engin; Department of Mechanical Engineering (2005) Manufacturing industry has made extensive use of simulation as a means of trying to model the impact of variability on manufacturing system behavior and to explore various ways of coping with change and uncertainty. Simulation helps find optimal solutions to a number of problems at both design and application stages of Flexible Manufacturing Systems (FMS̕s) serving to improve the أflexibilityؤ level The flexibility requirement of FMS necessitates the dissemination of every activity that concerns production,...
Development of a bidding algorithm used in an agent-based shop-floor control system Uluer, Muhtar Ural; Kılıç, Sadık Engin; Department of Mechanical Engineering (2007) In this study a time based bidding framework is developed which is used for dispatching jobs to manufacturing resources in a virtual shop-floor environment. Agent-based shop-floor control approach is implemented with machine and part agents. The Contract-net communication protocol is utilized as the negotiation scheme between these agents. Single step product reservation (SSPR) technique is adopted throughout the study. Primary objective is determined as meeting the due dates and if the lateness is inevitab...
Design of an image acquisition setup for mimic tracking Aköner, Özgüler Mine; Koku, Ahmet Buğra; Department of Mechanical Engineering (2007) With the advances in computer technology and the changing needs of people’s daily lives, robots start to offer alternative solutions. As one of these solutions, the branch of humanoid robots emerged as advanced robots that can interact with people. Robot faces are one of the most effective means of interacting with people; since they can express their emotions and reactions through facial mimics. However, the development of realistic robot faces necessitates the knowledge of the trajectories and displacemen...
A prototype software to select and construct control charts for short runs Doğancı, Hakan; Esin, Alp; Department of Mechanical Engineering (2004) Small and Medium Sized Enterprises (SMEs) were founded to improve the activity and effectiveness of small industries, to provide economic and social needs of the country, to increase the competitive level of the country, and to establish integration in the industry. In today̕s competition conditions, SMEs should continuously improve themselves; otherwise, they could lose their market shares. One of the major problems encountered in Turkish SMEs is poor quality activities; especially, not being able to explo...
Development of a web-based dynamic scheduling methodology for a flexible manufacturing cell using agent based distributed internert applications Alataş, Boran; Anlağan, Ömer; Department of Mechanical Engineering (2004) The increasing importance of computer leads to develop new manufacturing methods. One of the most important example; 3unmanned shop floor4 model aims, the mankind can work in jobs that they can be more efficient and more comfortable. As the base of this model, in Middle East Technical University Computer Integrated Manufacturing Laboratory (METUCIM) 3Agent Version 1.14 system is developed. Windows Distributed Internet Applications (DNA) modeling technique is used for the software development. In the develop...

Citation Formats

M. Bahtiyar, “Simulation modeling of shop floor activities for smes in virtual enterprises,” M.S. - Master of Science, Middle East Technical University, 2005.