Finite element procedures for nonlinear structures in moving coordinates. Part II: Infinite beam under moving harmonic loads

摘要: This paper presents a numerical approach to the stationary solution of infinite Euler-Bernoulli beams posed on Winkler foundations under moving harmonic loads. The procedure proposed in Part 1 [Nguyen V-H, Duhamel D. Finite element procedures for nonlinear structures coordinates. I: bar axial Comput Struct 2006;84(21):1368-80], which has been applied consider longitudinal vibration rods constant amplitude loads coordinates, is enhanced herein case with time-dependent amplitudes. Firstly, separation variables used distinguish convection component from displacement function. Then, condition obtain dynamic formulation Numerical examples are computed linear structure validate method. Finally, elastic foundation problems presented.