  Active vibration control has been introduced and used as one of the effective
approaches to suppress unwanted vibrations in different systems. Effective
performance of each vibration control method is contingent to accurate design
and proper dynamics selection of the control unit. These methods have been
extensively studied in various studies in recent years. Each of these new
methods are designed by a specific dynamics for a specific system. Here in this
paper, we aim to introduce some of these recent approaches in a brief
discussion, and familiarize the readers with these techniques. Engineers who
wish to design proper vibration controllers in different scales, from micro- to
macro applications, will certainly design a more successful vibration
controller if they know better about similar techniques, and they can implement
the novelties that other scholars have utilized.
