Oscillation control of cantilevers via smart materials technology and optimal feedback control: actuator location and power consumption issues

摘要

A study of the vibration control of cantilevers exposed to blast loading is presented. Whereas the structure used in this analysis is in the form of a thin-walled beam of closed cross-section contour, the control is based upon the simultaneous implementation of adaptive materials technology and of optimal feedback control. Issues related to the the influence upon dynamic response of size and location along the beam span of piezoactuator patches are investigated, and the efficiency of this combined control methodology is outlined. Other issues related to the minimization of the input power required in the control process, maximization of the sensing voltage output and implications of the limitation of control input voltage on dynamic response are also addressed and pertinent conclusions are outlined.