Pentru detalii contactati: dr Mario Perhinschi (Mario.Perhinschi@mail.wvu.edu) http://www2.cemr.wvu.edu/~wwwflt/ http://www.wvu.edu/

A general procedure for analysis of helicopter handling qualities in turbulent atmosphere is formulated based on a linear model of the vehicle, on a simple representation of the turbulence field and on a mathematical model of the human pilot for quantitative evaluations. The approach leads to a linear system with part of the input random. Results from the theory of linear systems with random input, as well as simulation, can be used to predict helicopter

In this paper, an optimal controller for the longitudinal channel of an autonomous helicopter model is designed by blending together two artificial intelligence techniques, genetic algorithms and fuzzy control. An evaluation index that captures the complex, constrained, multiple objective character of the problem was built based on several design requirements expressed in terms of the time response of the controlled system. The parameters of the