| Title | Cycle distributions for Gaussian waves - Exact and approximative results |
| Authors | Georg Lindgren, KB Broberg |
| Publication | Proceedings of The Fourteenth (2004) International Offshore and Polar Engineering Conference, vol 3 |
| Year | 2004 |
| Pages | 112 - 119 |
| Document type | Conference paper |
| Conference name | 14th International Offshore and Polar Engineering Conference (ISOPE 2004) |
| Conference Date | May 23-28, 2004 |
| Conference Location | Toulon, France |
| Status | Published |
| Quality controlled | Yes |
| Language | eng |
| Publisher | The International Society of Offshore and Polar Engineers |
| Abstract English | Wave cycle distributions are notoriously difficult to calculate. Available analytic approximations, like those suggested by Longuet-Higgins (1983) and Cavanie, Arhan and Ezraty (1976) make use only of a few spectral moments, and are unreliable for moderate waves. To find distributions under general spectrum shape and parameters one has to use efficient numerical algorithms based on high-dimensional integrals. The paper presents a number of examples of wave cycle distributions computed by the software package WAFO developed at Lund Institute of Technology; http://www.maths.lth.se/matstat/wafo/. All results are compared to simulated or real data. The wave cycles studied are the max-min cycle, the crest-trough wave cycles, the rainflow cycle distribution, and the mean-separated max-min cycle. |
| Keywords | wave period, stationary Gaussian process, density, spectral, random fatigue, rainflow cycles, crest-trough, max-min, |
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