Force-state mapping method of a chaotic dynamical system

This paper is concerned with the system identification of an experimental chaotic system. A conventional double-well potential vibrator is modified to accommodate an external air dash-pot damper. Damping can be controlled and set to have either high or low damping. The system exhibits very rich dynamics from periodic to chaotic states. The force-state mapping identification method is applied to both linear and chaotic states with the emphasis on quantifying the damping property for both high and low damping. This points to the potential use in condition monitoring of chaotic systems. (C) 1998 Academic Press.