TY - EJOU
AU - V.G.Yakhno,
AU - Ozdek, D.
TI - Computation of the Time-Dependent Green's Function for the Longitudinal Vibration of Multi-Step Rod
T2 - Computer Modeling in Engineering \& Sciences
PY - 2012
VL - 85
IS - 2
SN - 1526-1506
AB - The present paper describes computation of the time-dependent Green's function for the equations of longitudinal vibration of a multi-step rod with a piecewise constant varying cross-section. This computation is based on generalization of the Fourier series expansion method. The time-dependent Green's function is derived in the form of the Fourier series. The basic functions of this series are eigenfunctions of an ordinary differential equation with boundary and matching conditions. Constructing the eigenvalues and eigenfunctions of this differential equation and then derivation of the Fourier coefficients of the Green's function are main steps of the method. Computational experiments confirm the robustness of the method.
KW - Green's function
KW - longitudinal vibration
KW - multi-step rod
KW - analytical method
KW - simulation
DO - 10.3970/cmes.2012.085.157