Optimal Design Centring Through a Hybrid Approach Based on Evolutionary Algorithms and Monte Carlo Simulation

Authors:
Luis Pierluissi;Claudio M. Rocco S.
Affiliations:
Universidad Central de Venezuela, Facultad de Ingeniería, Apartado Postal 47937, Los Chaguaramos, Caracas, Venezuela;Universidad Central de Venezuela, Facultad de Ingeniería, Apartado Postal 47937, Los Chaguaramos, Caracas, Venezuela
Venue:
ICANNGA '07 Proceedings of the 8th international conference on Adaptive and Natural Computing Algorithms, Part I
Year:
2007

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Abstract

In many situations a robust design could be expensive and decision-makers need to evaluate a design that is not robust, that is, a design with a probability of satisfying the design specifications (or yield) less than 100 %. In this paper we propose a procedure for centring a design that maximises the yield, given predefined component tolerances. The hybrid approach is based on the use of Evolutionary Algorithms, Interval Arithmetic and procedures to estimate the yield percentage. The effectiveness of the method is tested on a literature case. We compare the special evolutionary strategy (1+1) with a genetic algorithm and deterministic, statistical and interval-based procedures for yield estimation.