Simplification and aggregation strategies applied for factory analysis in conceptual phase using simulation

Abstract

Despite that simulation possesses an establish background and offers tremendous promise for designing and analyzing complex production systems, manufacturing industry has been less successful in using it as a decision support tool, especially in the conceptual phase of factory design. This paper presents how simplification and aggregation strategies are incorporated in a modeling, simulation and analysis tool, with the aim of supporting decision making in conceptual phase. Conceptual modeling is guided by a framework using an object library with generic drag and drop system components and system control objects. Data inputs are simplified by the use of Effective Process Time distributions and a novel aggregation method for product mix cycle time differences. The out coming specification is through a Web Service interface handle by modeling system architecture, automatically generating a simulation model and analysis. Case studies confirm a breakthrough in project time reduction without appreciable effects on the model's fidelity.

Virtual modelling for simulation-based lean education

“…They validate it by comparing their simulator to a flexible manufacturing system. Moris et al (2008) identify the need to focus on improvement of modelling features and estimation of distributions for production data. Yang et al (2008) identify the need to integrate process simulation, evaluation platform, and management information systems.…”

“…Lee et al (2011) state that as the production lines are complex it is necessary to choose/develop models or modelling techniques carefully. Moris et al (2008) conclude that, while creating a computer simulation model, focus on the improvement of modelling features and accuracy in distribution for production data is necessary. Yang et al (2008) identify the need to integrate process simulation, evaluation platform, and management information systems.…”

Development of a lean manufacturing simulation laboratory for continuing education students

“…Most of the present research is in bits and pieces instead of developing a complete SL for LM. Moris et al. (2008) have identified the need to integrate process simulation, evaluation platform and management information systems.…”

Conceptual modelling for simulation: Progress and grand challenges

“…Zeigler (1976), Innis and Rexstad (1983), Yin and Zhou (1989) and Robinson (1994) all discuss methods of model simplification specific to simulation modelling. Only two publications were identified in the literature review that covered the topic of model simplification: Moris et al (2008) and Koch and Tolujew (2013). A panel discussion at the 2018 Winter Simulation Conference, led by Durk-Jouke van der Zee, addresses model simplification from an educational perspective.…”