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Stability of the triple inverted physical pendulum described in the article of academician V.N. Chelomey (1983)

Authors: Gribkov V.A., Khokhlov A.O. Published: 21.12.2015
Published in issue: #6(105)/2015  

DOI: 10.18698/0236-3941-2015-6-33-49

 
Category: Mechanics | Chapter: Dynamics and Strength of Machines, Instruments, and Equipment  
Keywords: inverted physical pendulum, N-linked pendulum, parametric excitation, dynamic stabilization, experiment

The article presents a solution to the stability problem of the inverted vertical position of the triple physical pendulum described in the famous scientific publication of Academician V.N. Chelomei 1983. The pendulum is stabilized in the inverted position by vertical monogarmonic vibrations of the suspension axis. The authors analyze some mathematical models of pendulum systems and identify the most suitable form of the model for this research. With the help of the Floquet theory, the authors solve the stability problem of the pendulum inverted position by calculating monodromy matrices and multipliers. The authors are the first to determine experimentally the stability boundary of the multilink (triple) pendulum in a wide range of excitation parameters. The authors obtained experimental results using an installation built purposely for the experimental determination of the stability region of the research subject. The divergence between the calculation and experimental results is no more than 5% for the vast majority of the boundary points.

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