Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8059344 | Applied Ocean Research | 2018 | 11 Pages |
Abstract
This paper presents 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 (DP) system, i.e., without forward speed. The proposed algorithm finds the wave spectrum estimate from the response measurements by iteratively solving a set of linear equations, and it is computationally efficient. The main vessel parameters are required as input. Apart from this the method is signal-based, with no assumptions on the wave spectrum shape. Performance of the proposed algorithm is demonstrated on full-scale experimental DP data of a vessel in three different sea states at head, bow quartering, beam, stern quartering and following sea waves, respectively.
Related Topics
Physical Sciences and Engineering
Engineering
Ocean Engineering
Authors
Astrid H. Brodtkorb, Ulrik D. Nielsen, Asgeir J. Sørensen,