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Ural Radio Engineering Journal
Article . 2018 . Peer-reviewed
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Modeling of Mechanical Properties of a Parabolic Antenna with Composite Radome in ANSYS Software Environment

Authors: Ponomarev, O. P.;

Modeling of Mechanical Properties of a Parabolic Antenna with Composite Radome in ANSYS Software Environment

Abstract

Актуальность работы связана с обеспечением надежности конструктивных элементов антенных постов радиолокационных станций при проектировании. С этой целью в среде ANSYS выполнено компьютерное конечно-элементное моделирование термонапряженного состояния алюминиевого параболического зеркала, закрепленного на кронштейне, закрытого композитным радиопрозрачным обтекателем, под действием собственного веса, ветрового воздействия и температуры. При моделировании слоистого композитного материала обтекателя использованы многослойные оболочечные элементы. Исследованы упругие деформации в зеркале при фиксированном воздействии ветровой нагрузки в диапазоне температур окружающей среды от –40 до +50 °C, в частности радиальные, осевые и нормальные перемещения. Установлено, что «развертывание» зеркала происходит при его охлаждении до –40 °C на величину 1,2–1,3 мм, что сказывается на искажении амплитудно-фазового распределения поля в его раскрыве.

Modeling of thermostressed states of a parabolic aluminium mirror covered by radio transparent radome under gravity, wind and temperature effects is performed. A procedure is described to prepare a geometrical model for calculations in the ANSYS software environment, and to create finite-element meshes. The calculated results are presented for the temperature range of –40 °C to + 50 °C.

Поступила: 10.09.2018. Принята в печать: 14.10.2018.

Receiver: 10.09.2018. Accepted: 14.10.2018.

Keywords

РАДИОЛОКАЦИОННАЯ СТАНЦИЯ, RADOME, FINITE-ELEMENT MESHES, ОБТЕКАТЕЛЬ, КОНЕЧНО-ЭЛЕМЕНТНАЯ СЕТКА, THERMOSTRESSED STATES, RADAR, ТЕРМОНАПРЯЖЕННОЕ СОСТОЯНИЕ

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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!
2
Average
Top 10%
Average
gold