Journal of Applied and Industrial Mathematics

, Volume 13, Issue 2, pp 327–339 | Cite as

Family of Phase Portraits in the Spatial Dynamics of a Rigid Body Interacting with a Resisting Medium

  • M. V. ShamolinEmail author


Under study is the problem of spatial free deceleration of a rigid body in a resisting medium. It is assumed that a axisymmetric homogeneous body interacts with the medium only through the front part of its outer surface that has the shape of flat circular disk. Under the simplest assumptions about the impact forces from the medium, it is demonstrated that any oscillations of bounded amplitude are impossible. In this case, any precise analytical description of the force-momentum characteristics of the medium impact on the disk is missing. For this reason, we use the method of “embedding” the problem into a wider class of problems. This allows us to obtain some relatively complete qualitative description of the body motion. For the dynamical systems under consideration, it is possible to obtain particular solutions as well as the families of phase portraits in the three-dimensional space of quasi-velocities which consist of a countable set of the phase portraits that are trajectory-nonequivalent and have different nonlinear qualitative properties.


rigid body resisting medium qualitative and numerical analysis 


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© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Institute of Mechanics of LomonosovMoscow State UniversityMoscowRussia

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