RU2014105355A - METHOD FOR DETERMINING ICE STRENGTH IN AN ICE EXPERIENCE POOL - Google Patents
METHOD FOR DETERMINING ICE STRENGTH IN AN ICE EXPERIENCE POOL Download PDFInfo
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- RU2014105355A RU2014105355A RU2014105355/28A RU2014105355A RU2014105355A RU 2014105355 A RU2014105355 A RU 2014105355A RU 2014105355/28 A RU2014105355/28 A RU 2014105355/28A RU 2014105355 A RU2014105355 A RU 2014105355A RU 2014105355 A RU2014105355 A RU 2014105355A
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Abstract
Способ определения прочности льда в ледовом опытовом бассейне, включающий измерение средней солености льда и средней температуры льда по его толщине и определение прочностных свойств льда на изгиб методом разрушения консольных балок льда на плаву, отличающийся тем, что предварительно в выбранном опытовом ледовом бассейне намораживают моделированные ледяные покровы, имеющие различные среднюю температуру, среднюю соленость и структуру, в которых затем проводят эксперименты по упомянутому определению прочности льда путем разрушения консольных балок льда на плаву с измерением средней солености льда S и средней температуры t по его толщине, в результате которых получают данные о прочности льда σ в виде зависимости σ=f (S, t), и структуры льда для выбранного опытового бассейна, а перед проведением модельных испытаний перед каждым экспериментом с буксируемыми моделями измеряют в ледовом опытовом бассейне среднюю соленость льда и температуру приледного слоя воды, которые вводят в бортовой компьютер, после чего, в процессе проведения испытаний с буксируемыми моделями, в темпе ведения эксперимента определяют температуру поверхности льда непосредственно перед буксируемой моделью на расстоянии, равном не менее восьми толщинам ледового покрова опытового бассейна перед буксируемой моделью в полосе шириной в 1,1-1,2 ширины испытуемой модели с помощью измерительного тепловизора, сканирующего поверхность льда в указанной полосе, значения которой постоянно регистрируют на бортовом компьютере, который на основе полученных данных вычисляет среднюю температуру льда по формуле:где t- температура поверхности льда, t- тем�A method for determining the strength of ice in an ice test pool, including measuring the average salinity of ice and the average temperature of ice by its thickness and determining the strength properties of ice in bending by breaking cantilever ice beams afloat, characterized in that the simulated ice covers are frozen in the selected experimental ice pool having different average temperature, average salinity and structure, in which experiments are then carried out according to the above-mentioned determination of ice strength by breaking to nsol ice beams afloat with measurement of the average ice salinity S and average temperature t by its thickness, as a result of which data are obtained on the ice strength σ in the form of the dependence σ = f (S, t), and the ice structure for the selected experimental basin, and before by conducting model tests, before each experiment with towed models, the average ice salinity and temperature of the ice layer of water, which are entered into the on-board computer, are measured in the ice test pool, after which, in the course of testing with towed models, the rate The experiment determines the temperature of the ice surface immediately in front of the towed model at a distance equal to at least eight thicknesses of the ice cover of the experimental pool in front of the towed model in a strip 1.1-1.2 wide of the test model using a thermal imager that scans the ice surface in the specified strip , the values of which are constantly recorded on the on-board computer, which, on the basis of the obtained data, calculates the average ice temperature by the formula: where t is the temperature of the ice surface, t
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RU2014105355/28A RU2578772C2 (en) | 2014-02-14 | 2014-02-14 | Method for determining the strength ice in ice towing basin |
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RU2014105355/28A RU2578772C2 (en) | 2014-02-14 | 2014-02-14 | Method for determining the strength ice in ice towing basin |
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RU2014105355A true RU2014105355A (en) | 2015-08-20 |
RU2578772C2 RU2578772C2 (en) | 2016-03-27 |
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RU2014105355/28A RU2578772C2 (en) | 2014-02-14 | 2014-02-14 | Method for determining the strength ice in ice towing basin |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111537436A (en) * | 2020-04-03 | 2020-08-14 | 南京航空航天大学 | Device and method for testing fracture toughness of solid-ice interface under large-area icing condition of surface of coating material |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2740473C1 (en) * | 2020-03-25 | 2021-01-14 | Федеральное государственное бюджетное учреждение "Арктический и Антарктический научно-исследовательский институт" (ФГБУ "ААНИИ") | System for testing of bending strength of ice cantilevers beams afloat by upward action |
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RU2054499C1 (en) * | 1991-11-01 | 1996-02-20 | Дальневосточный государственный технический университет | Method for determination of ice strength |
KR101325863B1 (en) * | 2012-08-17 | 2013-11-05 | 한국해양과학기술원 | Measurement system of in-situ flexural strength of sea ice |
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- 2014-02-14 RU RU2014105355/28A patent/RU2578772C2/en active IP Right Revival
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111537436A (en) * | 2020-04-03 | 2020-08-14 | 南京航空航天大学 | Device and method for testing fracture toughness of solid-ice interface under large-area icing condition of surface of coating material |
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RU2578772C2 (en) | 2016-03-27 |
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