p-y-ẏ curves for dynamic analysis of offshore wind turbine monopile foundations

摘要: Abstract The well-known p - y curve method provides soil-structure interaction that is independent of the load rate. In this paper an improved proposed by considering influence excitation frequency. For purpose, a two-dimensional finite-element program developed for analysis segment offshore monopile foundation placed in different depths. intended use model analyzes wind turbines operation where small-magnitude cyclic response observed addition to quasi-static from mean force. loading analyzed employing coupled equations based on u P formulation, i.e. accounting soil deformation as well pore pressure. Thus, has focus effects drained versus undrained behavior and impact stiffness damping related at frequencies. order enable parameter study with variation properties, constitutive purposely kept simple. Hence, linear poroelastic material few parameters utilized. Based model, curves are extracted lateral monopiles subjected loads. code verified findings literature.