A fuzzy approach to the evaluation of human factors in ultrasonic nondestructive examinations

Authors

1 Professor, Universidade de Ensino “Estácio de Sá”. Avenida Presidente Vargas, Rio de Janeiro - RJ - Brasil

2 Professor, Universidade Federal de Rio de Janeiro, Cidade Universitária, Centro de Tecnologia, COPPE-PEMM, Caixa Ilha do Fundão, Rio de Janeiro - RJ - Brazil

3 Profesor,Universidade Católica de Rio de Janeiro, Departamento de Engenharia Elétrica , PUC-Rio. Rua Marquês de São Vicente, 225. CEP 22453-900 Gávea - Rio de Janeiro - RJ - Brazil

Abstract

Human factors are among the main elements affecting the reliability of nondestructive examinations (NDE). In a man-machine system, human reliability is affected by many factors (performance shaping factors) whose influence on reliability cannot be easily expressed quantitatively. This paper identifies and ranks 59 perform-ance shaping factors by using a fuzzy reasoning method and proposes a procedure to measure them. This will determine the Quality Standard (QS) for a NDE system so that human reliability in ultrasonic nondestructive examinations can be qualitatively evaluated.

Keywords