Bykova T. V. Russia Saratov State Technical University named after Gagarin Y.A., Saratov State Technical University named after Gagarin Y.A., 77, Politechnicheskaya st., 410054, Saratov, Russia tbykova69@mail.ru Author's articles Mathematical Modeling of Interaction Between Layer of Viscous Liquid and Elastic Walls of Channel, Which Was Installed on Vibration Foundation