Fuzzy Dynamic Model of a Giant Magnetostrictive Actuator
In this paper, an intelligent modeling method, which is based on the Tree-Structured fuzzy inference system, is proposed for building a fuzzy dynamic model of a giant magnetostrictive actuator. In this new method, a series-parallel frame is introduced to transform the multi-valued mapping of the hysteresis into a one-to-one mapping so that the fuzzy technique can be used to approximate the characteristic of the hysteresis. The proposed model has a simple architecture, which is of low computational load and can adapt to different operating conditions. Compared the calculating results with the experimental ones, it is found that the fuzzy dynamic model is able to well reproduce the dynamic behavior of the giant magnetostrictive actuator across a wide frequency band (below 30Hz).
Yafang Han et al.
J. Q. Mao et al., "Fuzzy Dynamic Model of a Giant Magnetostrictive Actuator", Materials Science Forum, Vols. 546-549, pp. 2183-2188, 2007