Differences between active vibration suppression and active vibration isolation

摘要

Active vibration control is an essential technology in future for its better performance in vibration suppression and isolation within low frequency range. However, it may be less effective due to the limitations of the size of actuators, the operating rate of controllers and the boundary condition of controlled elastic structures, etc. In this paper, the differences between active vibration suppression and active vibration isolation on the control object are discussed, including the type of actuator and the available space for installing, which show the promising potential of active vibration control technology in low-frequency vibration reduction. Development challenges of active vibration suppression are analyzed. Besides, the key technologies and the difficulties are also discussed.