Abstract: The occurrence of subharmonic responses in compliant structures including nonlinear coupling between the wave force and the structural motion is studied using simplified models of a cylinder ...

Abstract: The dynamic stability behavior of a single‐degree‐of‐freedom system with piecewise linear stiffness is considered. The analytical expression representing the divergence of perturbed trajectories is derived. The mechanism ...

Abstract: Though many methods of system identification are currently available for parameter estimation of structural systems, the challenge lies in the numerical difficulty in convergence when the number of unknowns is large. In ...

Abstract: Different types of second-order superharmonic wave forces acting on jack-up platforms are studied. The nonlinear effect of variable wave surface (i.e., the inundation effect) is found to be the most significant. It is shown ...

Abstract: In a knee-brace-frame (KBF), one end of the brace is connected to a short knee element instead of beam-column joint. The brace provides the required lateral stiffness, whereas the ductility is obtained through shear yielding ...

Abstract: This paper presents a practical inverse approach for forecasting nonlinear hydrological time series. The proposed approach involves: (1) calibrating the delay time, embedding dimension and number of nearest neighbors ...