Kazachkov, A. R.Lykah, V. A.Minakova, K. A.Syrkin, E. S.Tkachenko, O. Y.2016-11-252016-11-252016Liquid Nonlinear Oscillations in the U-Tube System / A. R. Kazachkov [et al.] // Nonlinear Dynamics–2016 (ND-KhPI2016) : proceedings of 5th International Conference, dedicated to the 90th anniversary of Academician V. L. Rvachev, September 27-30, 2016 = Нелінійна динаміка–2016 : тези доп. 5-ї Міжнар. конф., 27-30 вересня 2016 р. – Kharkov : NTU "KhPI", 2016. – P. 320-328.https://repository.kpi.kharkov.ua/handle/KhPI-Press/24936Dynamics of oscillation processes in a siphon U-tube is studied for the system of connected vessels filled with homogeneous liquid. The equations and phase paths describing the motion of viscous and non-viscous liquids are given, oscillation frequencies are considered. Oscillations are nonlinear in general case, but they turn into linear by setting specific parameter values of the system. Phase portraits are obtained and their dependences on parameters of the system are analyzedfor both linear and non-linear cases.encommunicating vesselsoscillations of liquidlinear motion equationsphase portraitsnon-linear motion equationsArticle