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Información tecnológica

versión On-line ISSN 0718-0764

Resumen

PONCE, Carolina V.  y  ROJAS, Bayron. Design of a Fuzzy Expert System for Determination of the Current Density in a Chromium Plant. Inf. tecnol. [online]. 2019, vol.30, n.2, pp.157-170. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642019000200157.

A fuzzy expert system was designed for modeling the current density in a hard chrome plating plant. First, an analysis of the general theory of hard chrome is carried out and it is compared with the practical execution of the plating process. The most relevant process variables are selected. After that, a model using fuzzy logic is proposed. To do this, membership functions, specific ranges, and a rule base describing the system, are defined. A Mamdani type system is used for modeling current density and its application time in the hard chrome process. The expert system obtained show an average percent error between the actual process and the model calculations lower than 10%. It is concluded that the proposed model is representative of the current chromed system studied. In addition, its implementation would mean a decrease in costs associated with both the saving of overtime of the plant operator as well as with the efficiency in the use of energy.

Palabras clave : fuzzy logic; expert systems, hard chrome; process modeling.

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