barrel vaults are attractive space structures that cover large area without intermediate supports. in this paper, the charged search system (css) optimization algorithm is employed for optimal design of barrel vaults. this method utilizes the governing laws of coulomb and gauss from electrostatics and the newtonian law of mechanics. the results demonstrate the efficiency of the discrete css alg...

In weakly nonlinear systems, the main effect of cubic nonlinearity on wave propagation is an amplitude-dependent correction dispersion relation. This phenomenon can manifest either as a frequency shift or wavenumber depending whether excitation prescribed initial condition boundary condition, respectively. Several models have been proposed to capture shifts observed when system subjected harmon...