Naslov
Estimation of Extreme Wave Amplitude using Genetic Algorithm

Autori
Prpić-Oršić, Jasna ; Turk, Anton

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
Pannonian Applied Mathematical Meetings

Mjesto i datum
Balatonalmádi, Mađarska, 26.05.2004. - 28.05.2004

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
design sea state; probability density function; genetic algorithm

Sažetak
The need for reliable extreme wave climate data has increased significantly within the past decade in response to increased ship and offshore object development. This is of importance in the design of all marine structures which must be able to withstand extreme environmental loadings. Typically a structure must be designed to withstand, with some margin of safety, that loading which is expected to be exceeded once in every fifty or hundred years. Two major statistical issues can be distinguished in the procedure of wave extreme prediction. The first issue is that predicted extreme values must be based on data collected in relatively short time. The second issue is extrapolation of the observed data into its extreme region, typically lying well beyond from even the most extreme available observation. The process of extrapolation plays a fundamental role in this area of analysis and therefore it is essential to fit empirically a convenient probability distribution that describes the available data as closely as possible. Estimation of extreme values probability distribution parameters by genetic algorithm is applied to improve the methodology of extreme sea state prediction. Illustrative applications of the method are given for a North Atlantic sea environment. The results are presented as crest height maximum values occurring with a given probability or in a design storm that has a specified return period.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja

POVEZANOST RADA