{"title":"Stochastic assessment of acceleration probability density function for parametric rolling using the moment method","authors":"","doi":"10.1007/s00773-023-00975-0","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>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.</p>","PeriodicalId":16334,"journal":{"name":"Journal of Marine Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Marine Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s00773-023-00975-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 0
Abstract
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.
摘要 集装箱船会遇到大滚转角和高加速度，集装箱丢失仍然是一个问题。本研究提出了一种计算滚动角和货物横向加速度概率密度函数（PDF）的方法。首先，利用期望线性推导出这些加速度的力矩值，并检验了该方法的有效性。其次，提出了这些加速度的 PDF 形状，并利用获得的力矩值确定了其系数。我们提出的方法可用于推导滚动角加速度和货物横向加速度的 PDF。
期刊介绍：
The Journal of Marine Science and Technology (JMST), presently indexed in EI and SCI Expanded, publishes original, high-quality, peer-reviewed research papers on marine studies including engineering, pure and applied science, and technology. The full text of the published papers is also made accessible at the JMST website to allow a rapid circulation.
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