Active Restricted Control for Harmonic Vibration Suppression
Active control systems are always restricted in one form or another. One of the restrictions is the lack of sensors or actuators for control implementation. This restricted control problem in the form of partial sensing and actuation thus poses a challenging problem for active controls, since most of the existing approaches make the implicit assumption that such information is readily available. This paper discusses the possibility of controlling structural vibration using restricted sensing and actuation control methodology. This opens a new avenue that, although counter to the current development in active control system designs through smart materials and smart structures, is readily applicable in practice. A number of fundamental results are derived concerning the active restricted controller properties, while algorithms are presented for the implementation. A case study is also provided, which demonstrates the feasibility of active restricted vibration control solutions.