Artículos de revistas
Active angular control of a sectioned airfoil using shape memory alloys and fuzzy controller
Fecha
2015-09-01Registro en:
Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 37, n. 5, p. 1555-1567, 2015.
1806-3691
1678-5878
10.1007/s40430-014-0293-1
2-s2.0-84942933563
2-s2.0-84942933563.pdf
Autor
Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Institución
Resumen
The present work illustrates an example of shape memory alloys and fuzzy controllers applied to active angular control of a sectioned airfoil. The main objective of the proposed control system is to modify the camber line of an airfoil based on the relative rotation between the different sections of the profile, given a reference angle. The changes of the sectioned airfoil angle result from the contraction/expansion of the shape memory alloy caused by heating of the wire with an electric current that changes its temperature by the Joule effect. Considering the presence of plant’s nonlinear effects, especially in the mathematical model of the alloy, this work proposes the application of a control system based on fuzzy logic theory. Through numerical and experimental tests, the performance of the fuzzy controller is compared with an on–off controller applied in an airfoil.