Research Article
Periodic Properties of 1D FE Discrete Models in High Frequency Dynamics
Figure 13
Time responses of an isotropic rod of free ends for various excitation carrier frequencies for approximation polynomials of the fifth degree—a numerical model of 736 DOFs according to the elementary theory of rods [36], based on Chebyshev node distribution used for calculations by the TD-FEM (km/s, m).