Viscoelastic active control for pulse disturbance

Based on the excellent energy dissipation characteristics of the viscoelastic material, this paper proposes the viscoelastic active control method to suppress the high-frequency or pulse disturbance. Also, the basic structure of viscoelastic active control technology is discussed. Besides, according to the energy model of viscoelastic material, the principle of selecting a viscoelastic control law is put forward. Moreover, combining with the generalized maxwell model, three viscoelastic control laws, the viscoelastic proportional derivative (PD) control, proportional integral derivative control (PID) and active disturbance rejection control (ADRC), are discussed and applied to the common second-order system. The results show that the viscoelastic active controller has excellent performance of suppressing high-frequency and pulse disturbance. Since the active control has fast response characteristic while the viscoelastic active control has excellent disturbance rejection performance, the switching control between these two control methods is designed and studied to combine their advantages. The simulation results show that the switching control method has not only fast response characteristic but also excellent performance of suppressing disturbance.