Abstract
The ice-resistant self-propelled platform (IRSPP) named North Pole that is currently under construction at the JSC Admiralty Shipyards is designed to carry out year-round scientific research in the Arctic Ocean. The IRSPP will be equipped with a unique ice loads monitoring system (ILMS). The technical requirements for the ILMS were developed in the Department of Ship Performance in Ice of the AARI. The ILMS should ensure a safe operation of the IRSPP in ice conditions (operational function) and serve as a measuring tool for researching of the mechanics of deformation and destruction of ice (scientific function). Analysis of ice conditions at different stages of IRSPP operation showed that the main scenario of ice interaction with the IRSPP hull will be the action of ice under compression on the middle part of the hull during drift. The monitoring of the stress-strain state of the hull is carried out by a complex system of fiber-optic strain sensors placed on different elements of the hull structures. The largest number of sensors are located on the side plating in the middle part of the IRSPP hull. The locations of the sensors were determined by finite element analysis of the stress-strain state of the IRSPP hull under the action of ice load. To monitor the stress-strain state of the surrounding ice field, up to 16 pressure sensors frozen into the ice are provided. Also, the system receives and stores data on the angles of roll, trim, yaw of IRSPP, its longitudinal, lateral and vertical accelerations, and the surrounding hydrometeorological conditions: wind speed and direction, air temperature, atmospheric pressure, and the geographical position of the platform. ILMS will significantly improve the safety of IRSPP operation during prolonged drift in ice conditions. Besides, the ILMS provides the platform hull with the functions of a measuring tool for studying the mechanics of deformation and destruction of sea ice in interaction with the engineering structures. The main purpose of this work is to create a comprehensive system for studying the processes of ice impact on structures in order to obtain new data about the parameters and nature of ice loads.
Highlights
The largest number of sensors are located on the side plating in the middle part of the ice-resistant self-propelled platform (IRSPP) hull
The locations of the sensors were determined by finite element analysis of the stress-strain state of the IRSPP hull under the action of ice load
По результатам модельных испытаний были определены районы, которые требуется оборудовать для осуществления мониторинга с помощью Система мониторинга ледовых нагрузок (СМЛН) во время дрейфа ледостойкая самодвижущаяся платформа (ЛСП) [10, 11]
Summary
В статье описывается разработка технических требований к системе мониторинга ледовых нагрузок для ледостойкой самодвижущейся платформы (ЛСП) «Северный полюс», выполненная в отделе ледовых качеств судов ААНИИ. Процесс разработки технических требований включал в себя анализ эксплуатационных ледовых условий ЛСП, определение сценариев взаимодействия льда с корпусом ЛСП, постановку задач для системы мониторинга ледовых нагрузок (СМЛН), разработку архитектуры СМЛН, конечно-элементный анализ напряженно-деформированного состояния корпуса ЛСП, а также разработку требований к размещению датчиков на конструкциях корпуса ЛСП. Основной целью работы является создание комплексной системы исследования процессов воздействия льда на сооружения для получения новых данных по параметрам и характеру действия ледовых нагрузок. Для цитирования: Чернов А.В., Максимова П.В., Лихоманов В.А., Свистунов И.А., Крупина Н.А., Савицкая А.В. Методика формирования архитектуры системы мониторинга ледовых нагрузок для ледостойкой самодвижущейся платформы // Проблемы Арктики и Антарктики.
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