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Zhang dynamics (ZD) and gradient dynamics (GD) are both powerful methods. Based on a pendulum system, this paper investigates both of the explicit and implicit tracking control using the ZD method. For solving the singularity-containing implicit tracking problems, this paper overcomes the singularities by using the ZD method in combination with the GD method (i.e., the ZG method). Analyses and simulations...
In this paper, a new piezoelectric stack actuator is proposed, and the modeling and simulation are completed. Generally, piezoelectric stack can take significant compressive loads but cannot tolerate tension, so this new actuator is designed that can obtain obvious bilateral actuated outputs. This actuator is made of two piezoelectric stacks and a bilateral output device. By controlling the voltage...
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