Platform oscillations in the case of vibro-impact interaction with processed material

The dynamics of a platform with processed material when its vibrations are excited by two self-synchronizing vibration exciters is considered. A mathematical model taking into account vibro-impact interaction of the material with the platform when the material moves with possibility of leaving the surface is presented. The influence of the material motion and properties on the vibration exciters self-synchronization and on the platform vibrations is analyzed. It is found that the coefficient of restitution has almost no effect on the frequency ranges of the vibration exciters synchronization but it affects the vibrations of the platform and the material. It is shown that the motion modes of the platform and the material depend significantly on possibility for the material to leave the platform surface.