Now showing items 1-20 of 20

    • Analytical loading models in flexible manufacturing systems 

      Kırkavak, N.; Dinçer, C. (Elsevier, 1993)
      It would be difficult to efficiently implement a manufacturing system without solving its design and operational problems. Based on this framework, a system configuration and tooling problem is modeled. The model turns out ...
    • Beam search based algorithm for scheduling machines and AGVs in an FMS 

      Karabük, S.; Sabuncuoğlu, İhsan (Publ by IIE, Norcross, GA, United States, 1993)
      This paper presents a beam search based scheduling algorithm for a random FMS. The proposed algorithm considers finite buffer capacity, routing and sequence flexibilities and generates machine and AGV schedules in varying ...
    • A beam search-based algorithm and evaluation of scheduling approaches for fexible manufacturing systems 

      Sabuncuoglu İ.; Karabuk, S. (Taylor & Francis, 1998)
      This paper presents a new algorithm for the flexible manufacturing system (FMS) scheduling problem. The proposed algorithm is a heuristic based on filtered beam search. It considers finite buffer capacity, routing and ...
    • Due date and cost-based FMS loading, scheduling and tool management 

      Turkcan, A.; Akturk, M. S.; Storer, R. H. (Taylor & Francis, 2007)
      In this study, we consider flexible manufacturing system loading, scheduling and tool management problems simultaneously. Our aim is to determine relevant tool management decisions, which are machining conditions selection ...
    • Dynamic lot sizing and tool management in automated manufacturing systems 

      Aktürk, M. S.; Önen, S. (Elsevier, 2002)
      The overall aim of this study is to show that there is a critical interface between the lot sizing and tool management decisions, and these two problems cannot be viewed in isolation. We propose "ve alternative algorithms ...
    • An evaluative study of operation grouping policies in an FMS 

      Sabuncuoǧlu, İ.; Lahmar, M. (Kluwer Academic Publishers, 2003)
      The increased use of flexible manufacturing systems to provide customers with diversified products efficiently has created a significant set of operational challenges for managers. This technology poses a number of decision ...
    • Experimental investigation of FMS machine and AGV scheduling rules against the mean flow-time criterion 

      Sabuncuoglu, Ihsan; Hommertzheim, D. L. (Taylor & Francis, 1992)
      Although a significant amount of research has been carried out in the scheduling of flexible manufacturing systems (FMSs), it has generally been focused on developing intelligent scheduling systems. Most of these systems ...
    • Integrated lot sizing and tool management in automated manufacturing systems 

      Akturk, M.Selim, Onen Siraceddin (IIE, Norcross, GA, United States, 1997)
      We propose a new algorithm to solve lot sizing, tool allocation and machining conditions optimization problems simultaneously to minimize total production cost in a CNC environment. Most of the existing lot sizing and tool ...
    • Integrated scheduling and tool management in flexible manufacturing systems 

      Aktürk, M. S.; Özkan, S. (Taylor & Francis, 2001)
      A multistage algorithm is proposed that will solve the scheduling problem in a flexible manufacturing system by considering the interrelated subproblems of processing time control, tool allocation and machining conditions ...
    • Joint lot sizing and tool management in a CNC environment 

      Aktuük, M. S.; Önen, S. (Elsevier, 1999)
      We propose a new algorithm to solve lot sizing, tool allocation and machining conditions optimization problems simultaneously to minimize total production cost in a CNC environment. Most of the existing lot sizing and tool ...
    • Non-identical parallel CNC machine scheduling 

      Türkcan, A.; Selim Aktürk, M.; Storer, R. H. (Taylor & Francis, 2003)
      In this study, we solve the non-identical parallel CNC machine scheduling problem. We have two objectives: minimizing the manufacturing cost (comprising machining, non-machining and tooling costs) and minimizing the total ...
    • Optimal hybrid control of a two-stage manufacturing system 

      Gokbayrak, K.; Selvi O. (2006)
      We consider a two-stage serial hybrid system for which the arrival times are known and the service times are controllable. We derive some optimal sample path characteristics, in particular, we show that no buffering is ...
    • Part-machine grouping using a multi-objective cluster analysis 

      Akturk, M.S.; Balkose H.O. (1996)
      In the existing literature, the part-family formation problem is handled either by the coding systems or the cluster analysis. In this study, we propose a new method that will consider both design and manufacturing attributes ...
    • A problem space genetic algorithm in multiobjective optimization 

      Türkcan, A.; Aktürk, M. S. (Springer New York LLC, 2003)
      In this study, a problem space genetic algorithm (PSGA) is used to solve bicriteria tool management and scheduling problems simultaneously in flexible manufacturing systems. The PSGA is used to generate approximately ...
    • Pure cycles in flexible robotic cells 

      Gultekin, H.; Karasan O. E.; Akturk, M. S. (Elsevier, 2009)
      In this study, an m-machine flexible robotic manufacturing cell consisting of CNC machines is considered. The flexibility of the machines leads to a new class of robot move cycles called the pure cycles. We first model the ...
    • Reactive scheduling in a dynamic and stochastic FMS environment 

      Sabuncuoğlu, İ.; Kızılışık, Ö. B. (Taylor & Francis, 2003)
      In this paper, we study the reactive scheduling problems in a dynamic and stochastic manufacturing environment. Specifically, we develop a simulationbased scheduling system for flexible manufacturing systems. We also propose ...
    • Scheduling in a three-machine flexible robotic cell 

      Gultekin H.; Akturk, M.S.; Karasan O.E. (2006)
      In this study, a three-machine flexible robotic manufacturing cell in which the CNC machines are used is considered. These machines are highly flexible and are capable of performing several different operations. Each machine ...
    • A study of scheduling rules of flexible manufacturing systems: A simulation approach 

      Sabuncuoğlu İ. (Taylor & Francis, 1998)
      This study examines the effects of scheduling rules on the performance of flexible manufacturing systems (FMSs). Several machine and AGV scheduling rules are tested against the mean flowtime criterion. In general, scheduling ...
    • Tool allocation and machining conditions optimization for CNC machines 

      Aktürk, M. S.; Avcı, S. (Elsevier, 1996)
      In the literature, there exist many variations of machining economics problem in terms of modelling approaches and solution methodologies. However most of the existing studies focus on the single machining operation which ...
    • Two-machine flowshop scheduling with flexible operations and controllable processing times 

      Uruk, Z.; Gultekin H.; Akturk, M. S. (2013)
      We consider a two-machine flowshop scheduling problem with identical jobs. Each of these jobs has three operations, where the first operation must be performed on the first machine, the second operation must be performed ...