Dynamics of the elements of the printing device

Abstract

The finite element of an axisymmetric composite shell problem is constructed from the sub-elements of the layers. It is shown that the multiple eigenmodes exist in an analyzed periodic system. They are suitable for the excitation of wave motion in it. The numerical model describing the motion of fluid in a tube performing vibrations is developed. The results of the analysis show that the transverse vibrations decrease the mass flow rate, while the longitudinal vibrations increase it. Thus the change of the mass flow rate caused by one of the types of vibrations can be compensated by the vibrations of another type. In the analysis of viscous fluids conventional FEM techniques is based on the approximation of nodal velocities. Conjugate approximation with eigen-smoothing enables to obtain photo-elastic images of acceptable quality.