Analysis of a conservation law modeling a highly re-entrant manufacturing system

Details Analysis of a conservation law modeling a highly re-entrant manufacturing system Analysis of a conservation law modeling a highly re-entrant manufacturing system

2009-07-07

arxiv.org/abs/0907.1274v1

Mathematics

Optimization and Control

22 pages, 6 figures

Scientific paper

This article studies a hyperbolic conservation law that models a highly re-entrant manufacturing system as encountered in semi-conductor production. Characteristic features are the nonlocal character of the velocity and that the influx and outflux constitute the control and output signal, respectively. We prove the existence and uniqueness of solutions for $L^1$-data, and study their regularity properties. We also prove the existence of optimal controls that minimizes in the $L^2$-sense the mismatch between the actual and a desired output signal. Finally, the time-optimal control for a step between equilibrium states is identified and proven to be optimal.

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