AN EXPERIMENTAL STUDY OF PERIODIC MOTIONS IN A DUFFING OSCILLATOR

In this paper, the experimental dynamics of a Duffing oscillatory system are studied for periodic motions. A Duffing oscillatory circuit is developed for the experimental study of periodic motions on the bifurcation trees. The coexisting asymmetric periodic motions are obtained experimentally. The analytical periodic motions in the Duffing oscillator are presented for comparison with experimental results. Because of hardware and data leakage of experimental instruments, the experimental result accuracy is much lower than the analytical results of periodic motions. To improve the experimental results accuracy, the high quality hardware and instruments should be adopted and the high resolution data acquisition systems should be adopted.