Blar i Institutt for matematiske fag på forfatter "Chai, Wei"
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Comparative Study of the Path Integration Method and the Stochastic Averaging Method for Nonlinear Roll Motion in Random Beam Seas
Chai, Wei; Dostal, Leo; Næss, Arvid; Leira, Bernt Johan (Journal article; Peer reviewed, 2017)In this work, the path integration method and the energy-based stochastic averaging method are introduced in order to study the stochastic responses of ship roll motion in random beam seas. Based on the Markov property of ... -
Development of environmental contours for first-year ice ridge statistics
Chai, Wei; Leira, Bernt Johan; Næss, Arvid; Høyland, Knut Vilhelm; Ehlers, Sören (Peer reviewed; Journal article, 2020)Ice ridges represent a major threat to ships and offshore structures in areas with sea ice but no icebergs, since they frequently determine and govern the structural design loads. This work focuses on the development of ... -
Long-term extreme response and reliability of a vessel rolling in random beam seas
Chai, Wei; Næss, Arvid; Leira, Bernt Johan (Journal article; Peer reviewed, 2018)In this paper, the long-term extreme response of a vessel rolling in random beam seas and the associated reliability evaluation are addressed. The long-term response analysis is based on the upcrossing rates of the roll ... -
Probabilistic assessment of ice rose diagrams for ice drift in the beaufort sea
Sinsabvarodom, Chana; Chai, Wei; Leira, Bernt Johan; Høyland, Knut Vilhelm; Næss, Arvid (Journal article; Peer reviewed, 2019)The intention of this paper is to introduce the ice rose diagram, which is a graphical tool that makes it possible to display the ice drift speed, the occurrence frequency, and the drift direction at a particular location ... -
Probabilistic methods for estimation of the extreme value statistics of ship ice loads
Chai, Wei; Leira, Bernt Johan; Næss, Arvid (Journal article; Peer reviewed, 2017)It is well known that when a ship sails in ice-covered regions, the ship-ice interaction process is complex and the associated ice loads on the hull is a stochastic process. Therefore, statistical models and methods should ...