Browsing NTNU Open by Author "Li, Hongtao"
Now showing items 1-11 of 11
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Experimental studies of wave-ice interactions – insights into data analysis methods and their applications to studying the wave-induced responses of ice cover
Li, Hongtao (Doctoral theses at NTNU;2020:228, Doctoral thesis, 2020)Studies of wave-ice interactions include field and laboratory experiments, theoretical model developments, the implementation of these theoretical models in simulation tools, and the validation and calibration of these ... -
Exploring time-delay-based numerical differentiation using principal component analysis
Li, Hongtao; Gedikli, Ersegun Deniz; Lubbad, Raed (Peer reviewed; Journal article, 2020)Natural systems, including the dynamics of engineered structures, are often considered complex; hence, engineers employ different statistical methods to understand these systems better. Analyzing these systems usually ... -
Ice-induced vibrations of the Norströmsgrund lighthouse
Nord, Torodd Skjerve; Samardzija, Ilija; Hendrikse, Hayo; Bjerkås, Morten; Høyland, Knut Vilhelm; Li, Hongtao (Journal article; Peer reviewed, 2018)The signature and occurrence of frequency lock-in (FLI) vibrations of full-scale offshore structures are not well understood. Although several structures have experienced FLI, limited amounts of time histories of the ... -
Laboratory study of ice floes collisions under wave action
Li, Hongtao; Lubbad, Raed (Journal article; Peer reviewed, 2018)This paper examines the experimental data on ice floes collisions from the HYDRALAB+ Transnational Access project: Loads on Structure and Waves in Ice (LS-WICE). The paper quantifies the contribution from ice-floes collisions ... -
Laboratory study of wave-induced flexural motion of ice floes
Li, Hongtao; Gedikli, Ersegun Deniz; Lubbad, Raed (Peer reviewed; Journal article, 2021)Wave-ice interactions involve complex physical processes. Well-designed laboratory investigations are indispensable for studying these processes. In the present study, laboratory experimental data on saline ice obtained ... -
Overview of the results of the project ‘Loads on Structure and Waves in Ice’ (LS-WICE)
Tsarau, Andrei; Cheng, Sukun; Shen, Hayley; Herman, Agnieszka; Li, Hongtao; Evers, Karl-Ulrich; Sukhorukov, Sergiy (Journal article, 2019)As an attempt to investigate several major research questions related to ocean wave-ice interaction, the HYDRALAB+ Transnational Access project ‘Loads on Structure and Waves in Ice’ (LS-WICE) was conducted in the Large Ice ... -
Review of wave-ice interaction studies
Li, Hongtao; Lubbad, Raed; Monteban, Dennis (Chapter, 2018)In the past several decades, sea-ice cover in the Arctic Ocean advances later than usual in the autumns and retreats earlier in the springs due to climate change. Concomitantly, total area of ice cover reduces and average ... -
Revisiting statistical properties of surf parameter with characteristic wave parameters for single random waves including spectral bandwidth effects
Myrhaug, Dag; Wang, Hong; Holmedal, Lars Erik; Li, Hongtao (Peer reviewed; Journal article, 2021)Results from a comparative study of the joint distribution of surf parameter and wave period are provided. First, two transformed joint distributions of wave height and wave period are compared. One of the distributions ... -
Scale-model ridges and interaction with narrow structures, Part 1 Overview and scaling
Shestov, Aleksey; Ervik, Åse; Heinonen, Jaakko; Perala, Ilkka; Høyland, Knut Vilhelm; Salganik, Evgenii; Li, Hongtao; van den Berg, Marnix; Jiang, Zongyu; Puolakka, Otto (Chapter, 2020) -
Statistics of surf parameter and wave power for individual waves
Li, Hongtao (Master thesis, 2014)In this thesis, the theoretical bivariate distribution of surf parameter and wave height is derived from a theoretical joint distribution of wave height and wave period based on narrow band approximation. Statistical ... -
Systematic investigation of data analysis methods in wave-ice interaction problem
Li, Hongtao; Gedikli, Ersegun Deniz; Lubbad, Raed (Chapter, 2020)Wave climate and extent of ice cover in the Arctic ocean have changed significantly in recent decades. Concomitantly, interest in studying wave-ice interaction has rapidly increased in the last two decades. Laboratory-scale ...