Selecting simualtion abstraction levels in simulation models of complex manufacturing systems

Abstraction level of complex simulation models such as large manufacturing systems is always a critical factor in simulation projects. It not only helps define boundaries of a simulation model but also defines the complexity and resource requirements for the model. Many a times a simple looking model grows into a complex model because of incorrect choices in abstraction level. Developing the model in stages or steps of abstraction is sometimes a favored approach. In this paper we study and analyze ‘why’ and ‘how’ these choices in abstraction level of a simulation model at various stages in a project's life cycle results in answering the objective function more precisely. Using several automotive manufacturing case studies, We discuss the challenges relating to complexity and methodological issues, and the procedures involved in managing the same.

[1]  Sigrid Wenzel,et al.  Verification and validation activities within a new procedure model for V&V in production and logistics simulation , 2009, Proceedings of the 2009 Winter Simulation Conference (WSC).

[2]  Sigrid Wenzel,et al.  Verifikation und Validierung für die Simulation in Produktion und Logistik - Vorgehensmodelle und Techniken , 2008 .

[3]  Harold A. Scott.  Modeling aircraft assembly operations , 1994, Proceedings of Winter Simulation Conference.

[4]  Edward J. Williams,et al.  High speedbottle manufacturing lines: Case studies and simulation software selection techniques , 2009, Proceedings of the 2009 Winter Simulation Conference (WSC).

[5]  Robert M. McGraw,et al.  Abstract modeling for engineering and engagement level simulations , 2000, 2000 Winter Simulation Conference Proceedings (Cat. No.00CH37165).

[6]  Madhav Erraguntla,et al.  Simulation modeling at multiple levels of abstraction , 1998, 1998 Winter Simulation Conference. Proceedings (Cat. No.98CH36274).

[7]  Soemon Takakuwa,et al.  Emergence of simulations for manufacturing line designs in Japanese automobile manufacturing plants , 2008, 2008 Winter Simulation Conference.