Acta Mechanica

, Volume 230, Issue 3, pp 871–883 | Cite as

On a new type of solving procedure for Euler–Poisson equations (rigid body rotation over the fixed point)

  • Sergey V. ErshkovEmail author
  • Dmytro Leshchenko
Original Paper


In this paper, we proceed to develop a new approach which was formulated first in Ershkov (Acta Mech 228(7):2719–2723, 2017) for solving Poisson equations: a new type of the solving procedure for Euler–Poisson equations (rigid body rotation over the fixed point) is suggested in the current research. Meanwhile, the Euler–Poisson system of equations has been successfully explored for the existence of analytical solutions. As the main result, a new ansatz is suggested for solving Euler–Poisson equations: the Euler–Poisson equations are reduced to a system of three nonlinear ordinary differential equations of first order in regard to three functions \(\Omega _{i}\) (\(i = 1, 2, 3\)); the proper elegant approximate solution has been obtained as a set of quasi-periodic cycles via re-inversing the proper elliptical integral. So the system of Euler–Poisson equations is proved to have analytical solutions (in quadratures) only in classical simplifying cases: (1) Lagrange’s case, or (2) Kovalevskaya’s case or (3) Euler’s case or other well-known but particular cases.


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© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Engineering Academy, Peoples’ Friendship University of Russia (RUDN University)MoscowRussian Federation
  2. 2.Odessa State Academy of Civil Engineering and ArchitectureOdessaUkraine

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