Robust optimization

Olieman N (2004b) Optimal robust product design. Presentation at the 29th Conference on the Mathematics of Operations Research, Lunteren, The Netherlands... 

The optimal robust controller designed with one of the new synthesis techniques is generally not of a form that can be readily implemented. The main benefit of the new synthesis procedure is that it allows the designer to establish performance bounds that can be reached under ideal conditions. In practice, a decentralized (multiloop) control structure is preferred for ease of start-up, bumpless automatic to manual transfer, and fault tolerance in the event of actuator or sensor failures. Indeed, a practical design does not start with controller synthesis but with the selection of the variables that are to be manipulated and measured. It is well known that this choice can have more profound effects on the achievable control performance than the design of the controller itself. This was demonstrated in a distillation example [17, 18] in which a switch from reflux to distillate flow as the manipulated variable removes all robustness problems and makes the controller design trivial. 

Addelman, S. (1962). Symmetrical and asymmetrical fractional factorial plans. Technometrics, 4, 47-58. Allen, T. T. and Bemshteyn, M. (2003). Supersaturated designs that maximize the probability of identifying active factors. Technometrics, 45, 92-97. Bingham, D. and Li, W. (2002). A class of optimal robust parameter designs. Journal of Quality Technology, 34, 244—259. Biswas, A. and Chaudhuri, P. (2002). An efficient design for model discrimination and ... 

Fluidizable Catalysts for Producing Hydrogen by Steam Reforming Biomass Pvrolvsis Liquids Identify, refine, and optimize robust, available catalyst support materials. 

Uncertainty is another major challenge for complex systems design optimization. Robust design optimizations are addressing this issue. 

Screening / Optimization Robustness Excluded from studies... 

Mitra, S. Globally optimized robust systems to overcome scaled CMOS rehabihty challenges. In Design, Automation and Test in Europe, DATE 2008 (2008)... 

Bain A D and Duns G J 1994 Simultaneous determination of spin-lattioe (T1) and spin-spin (T2) relaxation times in NMR a robust and faoile method for measuring T2. Optimization and data analysis of the offset-saturation experiment J. Magn. Reson. A 109 56-64... 

Q-Chem also has a number of methods for electronic excited-state calculations, such as CIS, RPA, XCIS, and CIS(D). It also includes attachment-detachment analysis of excited-state wave functions. The program was robust for both single point and geometry optimized excited-state calculations that we tried. 

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