... 03 2009 acoustic dispersion condition monitoring construction components convergence of numerical methods fast Fourier transforms structural engineering surface acoustic waves Wave-propagation-based methods are used for damage detection in structural materials. Elastic wave...

... eigenvalues and eigenfunctions stochastic processes construction components partial differential equations noise The moment Lyapunov exponent of the two-dimensional system 19 under real noise excitation 21 is governed by the eigenvalue problem 31 . The coefficients of Eq. 31 are periodic...