Pendulum angles recorded at the trolley's speed of 480 mm/s.
Fig. 5
Fitness curve of PSO
Fig. 6
The trolley speeds and pendulum swing angles with and without APS-ZVD algorithm. APS-ZVD, automatic parameter selection zero-vibration-derivative.
Fig. 7
(a) The FFT of swing angle with and without APS-ZVD shaper. (b) The sensitivity profile of APS-ZVD shaper. APS-ZVD, automatic parameter selection zero-vibration-derivative.
Fig. 8
Vibration suppression curves of APS-ZVD with different lengths of pendulum. APS-ZVD, automatic parameter selection zero-vibration-derivative.