Vibration Control System Construction Method without Controlled Object Modeling

This study presents an active vibration control system construction method which can be conducted without controlled object modeling. A virtual controlled object (VCO), which is a single-degree-of-freedom (SDOF) structure, is introduced between an actuator and a controlled object. Setting appropriate VCO parameters yields a state equation for model-free controller design. The VCO-based model-free vibration controller is easily obtained by applying traditional linear quadratic regulator (LQR) theory to the state equation. An iterative parameter determination method for the VCO-controller is constructed based on the simultaneous perturbation stochastic approximation (SPSA). The damping performance of the proposed technique is verified by vibration suppression simulations.