Research Article

Higher-Harmonic Generation Analysis in Complex Waveguides via a Nonlinear Semianalytical Finite Element Algorithm

Figure 2

(a) Geometry and finite element mesh adopted for the railroad track nonlinear analysis. (b) Phase-velocity dispersion curve in the (0 ÷ 200) kHz frequency range with selected combinations of primary and secondary modes pinpointed.
365630.fig.002a
(a)
365630.fig.002b
(b)