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A novel modified Preisach model is proposed to identify and simulate the hysteresis phenomena observed in a piezoelectric stack actuator. Further, an open-loop controller is incorporated to eliminate hysteresis influence. The proposed approach with a continuous, analytical distribution function performs very well when considering the low amount of parameters. In contrast to the classical and discrete...
Multilayer piezoelectric actuators, typically used in nano-positioning applications under high electrical field excitation, are affected by hysteresis, which limits their applications in terms of open-loop positioning and stability in closed-loop systems. In this paper, a reduced Preisach model superimposed to a linear response is applied. With only 5 parameters, the model shows a good match to experimental...
The Piezoelectric Actuator Drive (PAD) is a type of rotary motor that transforms the linear motion of piezoelectric stack actuators into a precise rotational motion. The very high stiffness of the actuators employed make this type of motor suited for open-loop control, but the inherent hysteresis exhibited by piezoelectric ceramics causes losses. Therefore, this paper presents a straightforward method...
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