Abstract
In this paper we study the global dynamics of the inverted spherical pendulum with a vertically rapidly vibrating suspension point in the presence of an external horizontal periodic force field. We do not assume that this force field is weak or rapidly oscillating. Provided that the period of the vertical motion and the period of the horizontal force are commensurate, we prove that there always exists a nonfalling periodic solution, i. e., there exists an initial condition such that, along the corresponding solution, the rod of the pendulum always remains above the horizontal plane passing through the pivot point. We also show numerically that there exists an asymptotically stable nonfalling solution for a wide range of parameters of the system.
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This work has been supported by the Grant of the President of the Russian Federation (Project MK-1826.2020).
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MSC2010
34C29, 70K65, 34C25
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Polekhin, I.Y. The Spherical Kapitza – Whitney Pendulum. Regul. Chaot. Dyn. 27, 65–76 (2022). https://doi.org/10.1134/S1560354722010075
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DOI: https://doi.org/10.1134/S1560354722010075