Experimental study of ship resistance in artificial ice floes

Zong, Zhi; Yang, Biye; Sun, Zhe; Zhang, G.Y.

doi:10.1016/j.coldregions.2020.103102

Cited by 28 publications

(17 citation statements)

References 17 publications

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“…This change in the results is due to larger networks of force chains in the broken ice around the structure. Zong et al [25] conducted experiments to obtain ship resistance in small ice floes. These authors used artificial ice floes made of polypropylene (PP) with different distribution, floe size, and shape, according to field observations.…”

Section: Experimental Advancesmentioning

confidence: 99%

“…Another proposal for a material to be used in experimentation could be polypropylene (PP). Examples of the use of PP can be found in [18,25].…”

Section: Paraffin Wax As Floesmentioning

confidence: 99%

“…In this research, no breaking resistance is considered. Similar hypotheses to ensure artificial floes do not suffer failures regarding bending stresses are assumed in [18,25].…”

Section: Paraffin Wax As Floesmentioning

confidence: 99%

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Methodology Based on Photogrammetry for Testing Ship-Block Resistance in Traditional Towing Tanks: Observations and Benchmark Data

Gutiérrez-Romero

Ruiz-Capel

Esteve-Pérez

et al. 2022

JMSE

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The real resistance that a ship must face when it is navigating in ice floes is the key factor for knowing the necessary power and the required engine size. The aim of this work is to provide valuable data to help other research in which numerical frameworks will be developed to study ship navigation in broken ice. In this work, we used paraffin wax as an alternative to obtain affordable solutions, avoiding the high cost of ice tests. The experiments were carried out in a traditional basin facility and they consisted of towing tank tests with a ship model using different concentrations of blocks simulated by the use of paraffin wax. Photogrammetry was used as technique to determine the initial position of the ice blocks, which is important as starting data in the current development of numerical simulation code for studying the features of ship resistance in drift ice. These data are available for some ice concentrations in attached files. In addition, a procedure for testing in traditional towing facilities is presented and discussed. The results of the resistance obtained in the experiments in the presence of simulated floes are presented for three concentrations and three model speeds. Some findings may be applicable to ice sailing, under given circumstances.

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Section: Experimental Advancesmentioning

confidence: 99%

“…Another proposal for a material to be used in experimentation could be polypropylene (PP). Examples of the use of PP can be found in [18,25].…”

Section: Paraffin Wax As Floesmentioning

confidence: 99%

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Methodology Based on Photogrammetry for Testing Ship-Block Resistance in Traditional Towing Tanks: Observations and Benchmark Data

Gutiérrez-Romero

Ruiz-Capel

Esteve-Pérez

et al. 2022

JMSE

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“…As a basic component in all ice interactions, level ice load is often studied. Most of the available methods used to determine the ship resistance in level ice can generally be categorized into three groups: empirical models [3][4][5][6], numerical models [7][8][9][10] and experimental models [11][12][13]. All of these models help optimize the design and operation of ships in Arctic waters.…”

Section: Introductionmentioning

confidence: 99%

“…In [5], Lindqvist did not include all resistance components to describe the ice-breaking process, but chose the components that are generally accepted as dominating; thus ice resistance was finally divided into three components: crushing, bending and submersion, and bending was identified as the main component in the resistance. A modification of the Lindqvist empirical model was proposed by Riska et al, who based the formulation of ice resistance on the assumption that the resistances in open water and ice can be separated and superimposed to obtain the total resistance [13,16]. Their model can be used for calculating resistance in level ice, with the velocity-related empirical coefficients derived from the full-scale data of a number of ships in the Baltic Sea.…”

Section: Introductionmentioning

confidence: 99%

Formulation of Ice Resistance in Level Ice Using Double-Plates Superposition

Gao

Bekker

et al. 2020

JMSE

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The estimation of ship resistance in ice is a fundamental area of research and poses a substantial challenge for the design and safe use of ships in ice-covered waters. In order to estimate the ice resistance with greater reliability, we develop in this paper an improved Lindqvist formulation for the estimation of bending resistance in level ice based on the superposition of double-plates. In the developed method, an approximate model of an ice sheet is firstly presented by idealizing ice sheeta as the combination of a semi-infinite elastic plate and an infinite one resting on an elastic foundation. The Mohr–Coulomb criterion is then introduced to determine the ice sheet’s failure. Finally, an improved Lindqvist formulation for estimation of ice resistance is proposed. The accuracy of the developed formulation is validated using full-scale test data of the ship KV Svalbard in Norway, testing the model as well as the numerical method. The effect of ice thickness, stem angle and breadth of bow on ship resistance is further investigated by means of the developed formulation.

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