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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1575

Title: SIMULATION AND PERFORMANCE ANALYSIS OF MANUFACTURING SYSTEMS USING DETERMINISTIC AND STOCHASTIC PETRI NETS With special reference to Addis Engineering Center Tools and Spare parts Workshop
Authors: Abebayehu, Seifu
Advisors: Dr. Subhash Chandra
Copyright: 2007
Date Added: 31-Oct-2008
Publisher: Addis Ababa University
Abstract: Most of manufacturing industries in our country practice the traditional production systems. Effective management of the steady state operation is no longer enough to ensure the survival, let alone the success, of an organization. The performance of the operations has to be improved continually in all its aspects, and it is driven by the quest for increased productivity, flexibility and continuously changing competitive environment. The increasing global character of market for goods and services, is stimulated by the factors like improvements in transport, telecommunication and data communication systems, the rapid technological advancement, and primarily the automation of manufacturing operations to decrease cost of manufacturing, product life and dependable deliveries. These features of the competitive environment certainly point to the need for continuous performance analysis and improvement of manufacturing systems. Therefore, whether it is a manufacturing-based or a service-based company, the key to stay at the apex of global competition is to meet the dynamically changing need of customers. Manufacturing systems simulation and performance analysis using Petri Nets is one of the promising tools employed for assessing performance and then taking the necessary measures for improvements of existing deficiencies. Petri Nets are graphical and mathematical tools for studying discrete event systems and have been under extensive development since Petri defined the language in 1962. Petri Net models are now common place within the sphere of performance modeling of manufacturing systems due to reasons like graphical and precise representation of system activities and models at various levels of detail and ability to capture the existence of concurrency, parallelism, resource constraints and process dependencies accurately. This study therefore, focuses on Modeling and analyzing the performance of the manufacturing process of Addis Engineering Center, one of the manufacturing industries in the country, using Petri Net so as to evaluate various performance parameters such as utilization rate of machines, bottleneck detection, cycle time, and throughput rate of system under consideration and providing solutions and recommendations for the pitfalls and ramification for attaining the optimum productivity.
Description: A thesis submitted to the School of Graduate Studies of Addis Ababa University in partial fulfillment of the requirements for the Degree of Masters of Science in Mechanical Engineering (Industrial Engineering Stream)
URI: http://hdl.handle.net/123456789/1575
Appears in:Thesis - Mechanical Engineering

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