... field. The turbulence model is DDES, and the cavitation model is the Schnerr-Sauer model. The sound field is predicted by the FW-H formulation. Unlike the traditional method, this paper solves the quadrupole term (non-linear term) by direct volume integration, so the nonlinear term can be predicted more...

... Abstract The heave-pitch coupled equation of Truss Spar platform under random waves is established considering the static stability and drainage volume changes, including higher order nonlinear term and the effects of instantaneous free surface. The motion responses are calculated...

... and discussed. The performance of the one-dimensional finite element model shows some numerical instabilities due to the nonlinear term and some problems have occurred near boundaries. Numerical filtering associated with the nonlinear term is used in order to control the nonlinear instability. Comparisons...

... excitations due to wind turbulence in addition to the nonlinear terms due to the mean wind component. To have clear insight about turbulence effect, the unsteady wind speed component was expressed as a single harmonic function. The effect of primary resonance due to the single unsteady wind component...

... coupling response lagrange equation platform motion rotation resonance response multidegree steady-state response wiley-interscience publication regular sea multiple scale freedom nonlinear term platform Proceedings of the Third (1993) International Offshore and Polar Engineering Conference...