
Solutions stability of initial boundary problem, modeling of dynamics of some discrete continuum mechanical system
D. A. Eliseev^{}, E. P. Kubyshkin^{} ^{} P. G. Demidov Yaroslavl State University, Sovetskaya str., 14, Yaroslavl, 150000, Russia
Abstract:
The solution stability of an initial boundary problem for a linear hybrid system of differential equations, which models the rotation of a rigid body with two elastic rods located in the same plane is studied in the paper. To an axis passing through the mass center of the rigid body perpendicularly to the rods location plane is applied the stabilizing moment proportional to the angle of the system rotation, derivative of the angle, integral of the angle. The external moment provides a feedback. A method of studying the behavior of solutions of the initial boundary problem is proposed. This method allows to exclude from the hybrid system of differential equations partial differential equations, which describe the dynamics of distributed elements of a mechanical system. It allows us to build one equation for an angle of the system rotation. Its characteristic equation defines the stability of solutions of all the system. In the space of feedbackcoefficients the areas that provide the asymptotic stability of solutions of the initial boundary problem are built up.
Keywords:
solution stability, discrete continuum mechanical systems, hybrid systems of differential equations.
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UDC:
517.933+517.956.6 Received: 30.03.2015
Citation:
D. A. Eliseev, E. P. Kubyshkin, “Solutions stability of initial boundary problem, modeling of dynamics of some discrete continuum mechanical system”, Model. Anal. Inform. Sist., 22:2 (2015), 197–208
Citation in format AMSBIB
\Bibitem{EliKub15}
\by D.~A.~Eliseev, E.~P.~Kubyshkin
\paper Solutions stability of initial boundary problem, modeling of dynamics of~some discrete continuum mechanical system
\jour Model. Anal. Inform. Sist.
\yr 2015
\vol 22
\issue 2
\pages 197208
\mathnet{http://mi.mathnet.ru/mais435}
\mathscinet{http://www.ams.org/mathscinetgetitem?mr=3417813}
\elib{http://elibrary.ru/item.asp?id=23405827}
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