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Fang Li
Aalto University
EngineeringFull scaleMarine engineeringFinite difference methodComputer simulation
7Publications
3H-index
20Citations
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Publications 11
Newest
#2Pentti KujalaH-Index: 27
Last. Gang Chen
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Abstract Ice bending is a major failure mechanism of level ice when ships and marine structures interact with level ice. This paper aims to investigate the ice bending and ice load when level ice collides on ships and marine structures using numerical simulation method, and compare the numerical results with field test. The fracture of ice is simulated with extended finite element method (XFEM), and cohesive zone concept is used to describe the crack propagation. In order to consider the charact...
Source
#1Fang Li (Aalto University)H-Index: 3
#2Mihkel Kõrgesaar (Tallinn University of Technology)H-Index: 7
Last. Floris Goerlandt (Dal: Dalhousie University)H-Index: 22
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Abstract The climate change has made the transit through Arctic area more feasible, which demands reliable methods to evaluate ship performance. Ship performance in ice is a cross-scale problem, where the desired output such as ship speed lies in larger scale while the actual ship-ice interaction happens in smaller scale. Due to insufficient knowledge in ice mechanics and the demand for computational efficiency, existing approaches for modelling ship-ice interaction from ship performance perspec...
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#1Aleksandar-Saša Milaković (NTNU: Norwegian University of Science and Technology)H-Index: 2
#2Fang Li (Aalto University)H-Index: 3
Last. Sören Ehlers (TUHH: Hamburg University of Technology)H-Index: 14
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Computational methods for predicting ship speed profile in a complex ice field have traditionally relied on mechanistic simulations. However, such methods have difficulties capturing the entire com...
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#1Fang Li (Aalto University)H-Index: 3
#2Floris Goerlandt (Dal: Dalhousie University)H-Index: 22
Last. Mikko Lensu (Finnish Meteorological Institute)H-Index: 9
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Source
#2Pentti KujalaH-Index: 27
Last. Mikko KotilainenH-Index: 3
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#1Fang Li (Aalto University)H-Index: 3
#2Mikko Kotilainen (Aalto University)H-Index: 3
Last. Pentti Kujala (Aalto University)H-Index: 27
view all 4 authors...
Abstract The modelling of the ice failure including icebreaking pattern and ice bearing capacity is an important issue in numerical simulations of ships going through level ice, in order to predict ship performance and ice loads. Previous studies model the shape of ice cusps assuming a simplified geometry, e.g. circular or triangular. According to the observations during full-scale ship trials, the geometry of the ice cusps is more elliptical rather than circular, with larger breaking length at ...
3 CitationsSource
#1Fang Li (Aalto University)H-Index: 3
#2Mikko Kotilainen (Aalto University)H-Index: 3
Last. Pentti Kujala (Aalto University)H-Index: 27
view all 4 authors...
2 CitationsSource
#1Fang Li (Aalto University)H-Index: 3
#2Floris Goerlandt (Aalto University)H-Index: 22
Last. Mikko Lensu (Finnish Meteorological Institute)H-Index: 9
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Abstract For the design and transit simulation of ice-going ships, a number of methods have been proposed for the prediction of ship resistance and transit speed in various ice conditions. In this paper, selected methods for ship performance in level ice, ridged ice and channel ice are evaluated based on full-scale measurement data of two ships. Uncertainties are identified and evaluated for a better understanding of the deviations in the results. Ice thickness in full-scale data was measured us...
10 CitationsSource
#2R. Berglund (VTT Technical Research Centre of Finland)
Last. Pentti KujalaH-Index: 27
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#1Fang Li (Aalto University)H-Index: 3
#2Jakub Montewka (Aalto University)H-Index: 21
Last. Pentti Kujala (Aalto University)H-Index: 27
view all 4 authors...
Navigation in ice covered waters is a challenging and hazardous activity, threatening the ship herself and the environment. Proper evaluation of the attainable ship speed in ice prior to setting off the journey is essential to mitigate the risk of besetting in ice which may cause further damages. The majority of the existing models evaluating ship speed in ice are physics-driven requiring detailed, not always accessible, input data, thus featuring high uncertainty. In this paper we propose an ev...
4 CitationsSource
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