A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Estimation of encountered wave elevation sequences based on response measurements in multi-directional seas
https://orcid.org/0000-0002-1934-8205
https://orcid.org/0000-0001-7470-2003
Abstract This paper presents a new approach for estimating encountered wave elevation sequences by use of measured ship responses, where wind-waves and swell may come from different directions, i.e. bi-directional waves. The main assumption of the approach, making use of Prolate Spheroidal Wave Functions (PSWF), is that the wave field is represented by multi-directional irregular waves. Thus, combining available measured responses, the phases and amplitudes of the multi-directional irregular waves are derived as the solution, by which the wave profiles can be estimated. Numerical investigations using artificially generated response measurements (sway, heave, pitch, vertical bending moment) of a bulk carrier in uni-directional and bi-directional long-crested as well as short-crested sea states are made. It is shown that the present approach can accurately estimate wave elevation sequences in such sea states.
Estimation of encountered wave elevation sequences based on response measurements in multi-directional seas
https://orcid.org/0000-0002-1934-8205
https://orcid.org/0000-0001-7470-2003
Abstract This paper presents a new approach for estimating encountered wave elevation sequences by use of measured ship responses, where wind-waves and swell may come from different directions, i.e. bi-directional waves. The main assumption of the approach, making use of Prolate Spheroidal Wave Functions (PSWF), is that the wave field is represented by multi-directional irregular waves. Thus, combining available measured responses, the phases and amplitudes of the multi-directional irregular waves are derived as the solution, by which the wave profiles can be estimated. Numerical investigations using artificially generated response measurements (sway, heave, pitch, vertical bending moment) of a bulk carrier in uni-directional and bi-directional long-crested as well as short-crested sea states are made. It is shown that the present approach can accurately estimate wave elevation sequences in such sea states.
Estimation of encountered wave elevation sequences based on response measurements in multi-directional seas
https://orcid.org/0000-0002-1934-8205
https://orcid.org/0000-0001-7470-2003
Abstract This paper presents a new approach for estimating encountered wave elevation sequences by use of measured ship responses, where wind-waves and swell may come from different directions, i.e. bi-directional waves. The main assumption of the approach, making use of Prolate Spheroidal Wave Functions (PSWF), is that the wave field is represented by multi-directional irregular waves. Thus, combining available measured responses, the phases and amplitudes of the multi-directional irregular waves are derived as the solution, by which the wave profiles can be estimated. Numerical investigations using artificially generated response measurements (sway, heave, pitch, vertical bending moment) of a bulk carrier in uni-directional and bi-directional long-crested as well as short-crested sea states are made. It is shown that the present approach can accurately estimate wave elevation sequences in such sea states.
Estimation of encountered wave elevation sequences based on response measurements in multi-directional seas
Takami, Tomoki (author) / Nielsen, Ulrik Dam (author) / Jensen, Jørgen Juncher (author) / Chen, Xi (author)
Applied Ocean Research ; 135
2023-04-17
Article (Journal)
Electronic Resource
English
Surface wave predictions in weakly nonlinear directional seas
| Elsevier | 2017
Wave Height Distribution around a Vertical Circular Cylinder in Multi-Directional Random Seas
| British Library Conference Proceedings | 1994
Long waves in directional seas
| Elsevier | 1981
Directional seas should be ergodic
| Elsevier | 1987
Problems encountered in using elevation power spectra as criteria of pavement condition
| Engineering Index Backfile | 1967