WSC 2005

WSC 2005 Final Abstracts

Simulation Case Studies A Track

Monday 3:30:00 PM 5:00:00 PM
Simulation Transformed Company Thinking

Chair: Jim Ashby (General Motors)

Discrete Event Simulation & Modeling of the Transportation Element within a Supply Chain (SC)
Mansour Toloo (Motorola Inc.)

The SC involves coordinating elements along a value chain delivering the appropriate quantities of goods and services to the right locations while meeting service level requirements and minimizing end-to-end SC costs. Transportation is a significant element of the SC that supports business operations and logistics. This presentation discusses the data collection, the process mapping of carrier delivery flows across all transportation modes and the data analysis of the simulation activity. The conversion of the data analysis outputs and process mapping into the composition of an end-to-end transportation model is described. The presentation discusses the transformation of the information into a modular and serial construct that imitates the serial nature of the transportation element while allowing the involved operations to be included in a logical, expandable and maintainable approach within the capabilities of a given simulation environment. Finally, the presentation addresses the institutionalization of the model within the SC organization.

Integrating Simulation with Corporate Initiatives
Malcolm Beaverstock (General Mills, Inc)

Simulation has seen an explosive increase in use within GMI over the past 10 years with increasing financial success. As the demand for simulation grew a decision was made to leverage this tool by significantly expanding the user base. Now, using a highly customized user interface and integrating with central libraries and data bases, simulation has become the focal point for manufacturing and engineering analysis by personnel throughout the organization. Utilizing GMI terminology and metrics, users can easily focus on issues related to company initiatives for conceptual engineering, option engineering, lean manufacturing, and continuous improvement. Reduction in training, re-learning, and model development time has lead to early acceptance from casual, intermediate, and power users. While being user friendly is an objective, this initiative is definitely NOT “Simulation for Dummies” but instead requires individuals to understand, in more depth, manufacturing and business alternatives.

How General Motors Used Simulators to Save Time and Money Creating Value for Our Customers
James R Ashby (General Motors)

This case study demonstrates how General Motors benefited by constructing special purpose simulators using ARENA Templates to rapidly model manufacturing systems common in the Automotive Industry. We use real manufacturing examples to demonstrate the enormous flexibility of these simulators while discussing the principles integral to their development. The simulators discussed here reduced model creation time from weeks to hours. Moreover, they eliminated the need for expert simulation engineers while at the same time dramatically improving modeling accuracy. In fact, it became common practice for engineers without any prior simulation experience to be trained and accurately constructing complex Body Shop models within a couple of weeks. For the first time, simulation analysis could be used in real time throughout the engineering development process. Hence, more effort was dedicated to analysis and improving system designs rather than constructing models.