Edward J. Williams

Learn More
Many companies have achieved high-value, conspicuous successes (cost savings or avoidance, workflow improvement, product-launch timing improvement) attributable to individual simulation studies. Fewer have achieved the ongoing, long-term benefits of making the undertaking of simulation analyses a "corporate norm." Strategies to enable this expansion of(More)
We describe the application of simulation analysis to a complex operational problem involving scheduling, sequencing, and material-handling decisions. The manufacturing process under study required close attention to correct mix and sequencing of raw materials, reduction of material-handling costs, high utilization of a resource having significant purchase(More)
Unconventional machining processes (communally named advanced or modern machining processes) are widely used by manufacturing industries. These advanced machining processes allow producing complex profiles and high quality-products. However, several process parameters should be optimized to achieve this end. In this paper, the optimization of process(More)
Chain conveyors are a specific type of conveyor often used in a variety of manufacturing and production applications, such as body and paint shops. These conveyors must typically interface with other types of conveyors such as cross-transfer conveyors, and also with other material-handling equipment such as lift tables and hold tables. Micromodeling of(More)
We describe the application of simulation and statistical analyses to the improvement of a shipping and distribution system supporting a component-fabrication plant and two automotive assembly plants interconnected by truck lines and railroads. These analyses enabled managers to determine the number and location of loading docks required, optimize the(More)
This study describes an application of discrete-process simulation to a final assembly process within the automotive industry. The study addressed the issues of whether the process design would meet production quotas, assessing the process flow times within the proposed system, verifying and improving the design of the conveyor system, and identifying and(More)
Experienced and wise industrial engineering educators and practitioners have long understood that industrial engineering is a coherent discipline encompassing techniques that work best synergistically, not a motley collection of specialized techniques each isolated in a separate chimney. As an example of the synergies which industrial engineering can bring(More)
Monte Carlo techniques have long been used (since Buffon's experiment to approximate the value of π by tossing a needle onto striped paper) to analyze phenomena which, due to their complexity and/or stochasticity, are beyond the reach of closed-form equations. Basic examples of such studies are estimating the probability that military field(More)