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Cycle distributions for Gaussian waves - Exact and approximative results

Lindgren, Georg LU and Broberg, KB (2004) 14th International Offshore and Polar Engineering Conference (ISOPE 2004) In Proceedings of The Fourteenth (2004) International Offshore and Polar Engineering Conference, vol 3 p.112-119
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
wave period, stationary Gaussian process, density, spectral, random fatigue, rainflow cycles, crest-trough, max-min
in
Proceedings of The Fourteenth (2004) International Offshore and Polar Engineering Conference, vol 3
pages
112 - 119
publisher
The International Society of Offshore and Polar Engineers
conference name
14th International Offshore and Polar Engineering Conference (ISOPE 2004)
external identifiers
  • WOS:000223783100016
  • Scopus:23844541440
language
English
LU publication?
yes
id
06912b03-149d-494c-aa91-b127cf61b0b5 (old id 1406741)
date added to LUP
2009-06-04 11:45:35
date last changed
2016-10-13 04:42:30
@misc{06912b03-149d-494c-aa91-b127cf61b0b5,
  abstract     = {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.},
  author       = {Lindgren, Georg and Broberg, KB},
  keyword      = {wave period,stationary Gaussian process,density,spectral,random fatigue,rainflow cycles,crest-trough,max-min},
  language     = {eng},
  pages        = {112--119},
  publisher    = {ARRAY(0x8402ce0)},
  series       = {Proceedings of The Fourteenth (2004) International Offshore and Polar Engineering Conference, vol 3},
  title        = {Cycle distributions for Gaussian waves - Exact and approximative results},
  year         = {2004},
}