Shock and Vibration / 2016 / Article / Fig 21

Research Article

PID Control of Multisources Complex Excitations Active Vibration Isolation System: An Improved Particle Swarm Optimization Algorithm

Figure 21

Actual vibration acceleration signals of two excitation motors.
(a) Time-frequency domain curves of the acceleration signal in 6-2 motor position
(b) Time-frequency domain curves of the acceleration signal in 6-5 motor position