Ulrik Dam Nielsen

TL;DR: In this paper, the authors present a review of the recent advances in the assessment of loads for ships and offshore structures with the aim to draw the overall technological landscape available for further understanding, validation and implementation by the academic and industrial communities.

TL;DR: In this paper, two main concepts can be applied to estimate the on-site directional wave spectrum on the basis of ship response measurements: (1) a parametric method which assumes the wave spectrum to be composed by parameterised wave spectra; (2) a non-parametric method where the directional spectrum is found directly as the values in a completely discretised frequency-directional domain without a priori assumptions on the spectrum.

TL;DR: A review of techniques applied to make sea state estimation on the basis of measured responses on a ship is given in this paper, with a focus on only the wave buoy analogy, which exploits a linear assumption between waves and the associated motions.

TL;DR: In this paper, the wave buoy analogy is used to estimate the wave spectrum at the location of an advancing ship by processing its wave-induced responses similar to the situation of a traditional wave rider buoy.

TL;DR: A novel method for estimating the sea state parameters based on the heave, roll and pitch response of a vessel conducting station keeping automatically by a dynamic positioning system, i.e., without forward speed is presented.