Duffing's equation was first given in 1918. Recently CHAOS was found and studied by using analog and digital computers. The present paper reports the chaotic behavior for a wide range of parameters and limit cycle in Duffing's equation. Some discussion on the chaotic behavior and its benefit is included. © 1990.
Ku, Y. H., & Sun, X. (1990). Chaos and limit cycle in Duffing’s equation. Journal of the Franklin Institute, 327(2), 165–195. https://doi.org/10.1016/0016-0032(90)90015-B