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Численный анализ уплотнений люка подводного аппарата

выпускная квалификационная работа магистра

Численный анализ уплотнений люка подводного аппарата

Abstract

Объект исследования: Резиновое уплотнение люка подводного аппарата. Цель исследования: Расчет уплотнения крышки МВП. Уплотнения располагаются в два ряда. Максимальное давление p = 3.2 МПа. Рабочая температура от T = -40 ℃ до T=+40℃ на воздухе и от T= -2℃ до T = +30 ℃ в воде. Максимальный зазор – до 3 мм. М аксимальная погонная нагрузка при задраивании крышки на воздухе (при T = -40 ℃) F = 5 кН/м, при задраивании крышки в воде (при T = -2 ℃) F = 2.5 кН/м. Результаты работы: 1. Построена конечно-элементная модель уплотнительного узла, получено напряжённо-деформированное состояние для каждого этапа нагружения и для каждого варианта внешних условий. 2. Была оценена прочность для всех вариантов температур и зазоров. Построенные модели подходит по заданному критерию жёсткости и герметичность не нарушена. 3. При давлении p = 3.6 МПа наибольшие максимальные напряжения для основной резины i = 2.82 при температуре -40℃ в варианте с зазором, для твёрдой резины i = 7.81 в при температуре 0℃ в варианте с зазором. 4. Уплотнение с вариантом без зазора испытывает меньшие нагрузки чем в варианте с зазором, поэтому для эксплуатации предпочтителен вариант без зазора. 5. При всех вариантах температур и зазоров уплотнение работает без разрушений и обеспечивает герметичность подводного аппарата.

Object of research: Rubber seal of the hatch of the underwater vehicle. The purpose of the study: Calculation of the seal of the MVP cover. The seals are arranged in two rows. Maximum pressure p = 3.2 MPa. The operating temperature is from T = -40℃ to T=+40℃ in air and from T= -2℃ to T = +30℃ in water. The maximum clearance is up to 3 mm. M. the axial linear load when closing the lid in air (at T = -40 ℃) F = 5 kN / m, when closing the lid in water (at T = -2 ℃) F = 2.5 kN /m. Results of the work: 1. A finite element model of the sealing unit is constructed, a stress-strain state is obtained for each stage of loading and for each variant of external conditions. 2. Strength was evaluated for all temperature and gap options. The constructed models are suitable for a given criterion of rigidity and tightness is not violated. 3. At a pressure of p = 3.6 MPa, the highest maximum stresses for the main rubber i = 2.82 at a temperature of -40℃ in the version with a gap, for hard rubber i = 7.81 v at a temperature of 0℃ in the version with a gap. 4. The seal with the gap-free option experiences less loads than in the gap-free version, therefore, the gap-free option is preferred for operation. 5. At all temperatures and gaps, the seal works without damage and ensures the tightness of the underwater vehicle.

Keywords

метод ÐºÐ¾Ð½ÐµÑ‡Ð½Ñ‹Ñ ÑÐ»ÐµÐ¼ÐµÐ½Ñ‚Ð¾Ð², напряжения, каучук, stresses, резина, вулканизация, finite element method, rubber, abaqus, vulcanization, sealing, уплотнение

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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