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Stochastic assessment of acceleration probability density function for parametric rolling using the moment method
Publikationstyp
Journal Article
Date Issued
2024
Sprache
English
Volume
29
Issue
1
Start Page
153
End Page
166
Citation
Journal of Marine Science and Technology 29 (1): 153-166 (2024)
Publisher DOI
Scopus ID
Publisher
Springer
Container ships encounter large roll angles and high acceleration, and container loss remains a problem. This study proposes a method for calculating the probability density function (PDF) of roll angular and cargo lateral accelerations. First, the moment values of these accelerations are derived using the linearity of expectation, and the validity of this method is examined. Second, the PDF shapes of these accelerations are proposed and their coefficients are determined using the obtained moment values. Our proposed method can be used to derive the PDFs of roll angular and cargo lateral accelerations.
Subjects
Cumulant neglect
Irregular head seas
Moment equation
Parametric rolling
Roll angular acceleration
DDC Class
620: Engineering