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Start Over Descriptor "Pressure hull" Language russian
2 results on '"Pressure hull"'

1. Biological module 'BiNOM' for cubesats of the SamSat family

Author

V. P. Zakharov, V. N. Konyukhov, P. I. Bakhtinov, E. V. Molchkov, D. V. Kornilin, and S. G. Konovalov

Subjects
cubesat, samsat, biomedical experiment, pressure hull, life support system, bio-object chamber, multispectral visualization, Motor vehicles. Aeronautics. Astronautics, TL1-4050
Abstract

The biological module BINOM is a platform for multi-purpose biomedical space experiments with a wide range of biological objects (bacteria, algae, fungi, plants, multicomponent ecosystems). It was designed as a payload for SamSat nanosatellites and can be easily mounted on any other space vehicle. The module consists of three main blocks a sealed chamber for biological objects, a life support system, a system of control and measurement supporting scientific data acquisition and pre-processing. The BiNOM interacts with the electronic systems of the nanosatellite with the help of a single four-pin connector. The life support system maintains the required temperature, pressure, humidity and gas mixture composition in the chamber of the biological object. The control system makes it possible to carry out biomedical experiments in the automatic mode according to a specified program or by commands from the ground control post. The control system is designed to measure the parameters of the environment and the biological object. The module supports visualization of objects in the UV-VIS-IR spectral range, fluorescence analysis, temperature and humidity measurement at several points, pressure, concentration of oxygen and carbon dioxide. Additional sensors can be used depending on the goals of the experiment. A module prototype was made and a number of tests were carried out to confirm the adequacy of the engineering solutions proposed. In particular, the vacuum chamber tests showed that the pressure loss in the pressure hull does not exceed 20% per year. A number of biological experiments demonstrated the possibility of initialization, growth and life support of various biological objects during a long, up to two months, period.

Published
2018
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2. Performance evaluation of polymer composite materials as construction materials for end-domes of underwater pressure hulls

Author

Kravtsov, Viktor I.

Subjects
підводний апарат, міцний корпус, край корпуса, склопластик, вуглепластик, технологія формування, несуча здатність, зовнішній гідростатичний тиск, underwater vehicle, pressure hull, end-dome, glass-fiber reinforced plastic (GFRP), carbon-fiber reinforced plastic (CFRP), fabrication technology, external hydrostatic pressure, load carrying capacity, подводный аппарат, прочный корпус, оконечность корпуса, стеклопластик, углепластик, технология формования, несущая способность, внешнее гидростатическое давление
Abstract

Проведен анализ работ, описывающих результаты производства и испытаний различных форм оконечностей из ПКМ для прочных корпусов подводной техники. Оценены перспективы применения ПКМ и технологий производства оболочечных конструкций, используемых в подводном судостроении, по следующим критериям: плотность, толщина и полезный внутренний объем оболочки, уровень давления потери несущей способности под действием внешнего гидростатического давления., Проведено аналіз робіт, які описують результати виробництва і випробувань різних форм країв корпусів з ПКМ для міцних корпусів підводної техніки. Оцінено перспективи застосування полімерних композиційних матеріалів і технологій виробництва оболонкових конструкцій, які використовуються у підводному суднобудуванні, за наступними критеріями: щільність, товщина і корисний внутрішній об’єм оболонки, рівень тиску втрати несучої здатності під дією зовнішнього гідростатичного тиску., A review and analysis of papers describing the results of fabrication and testing of various shapes of the composite end-domes for underwater pressure hulls was carried out. The aim of the paper is to evaluate the prospects for the use of FRP as constructional material for the various shapes of shell structures used in construction of underwater pressure hulls. The influence of some shapes of underwater shell structures made of FRP on critical external pressure, density and thickness of the shell structure, useful internal volume of the shell is discussed. A comparative evaluation of the long cylindrical filament-wound pressure hull and pressure hull in shape of closed toroid with circular cross section for underwater structures operating in the shelf zone (up to 1000 m) is made. Graphic illustration of the results is presented. The results of discussion are useful in design and fabrication of underwater structures.

Published
2015

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