Temperature influence on dynamic behavior of spacecraft waveguides
URI (для ссылок/цитирований):
https://iopscience.iop.org/article/10.1088/1757-899X/862/2/022041https://elib.sfu-kras.ru/handle/2311/142908
Автор:
Кудрявцев, Илья Владимирович
Брунгардт, Максим Валерьевич
Трошин, Сергей Иванович
Колотов, Андрей Иванович
Митяев, Александр Евгеньевич
Коллективный автор:
Политехнический институт
Кафедра прикладной механики
Кафедра конструкторско-технологического обеспечения машиностроительных производств
Дата:
2020Журнал:
IOP Conference Series Materials Science and EngineeringКвартиль журнала в Scopus:
без квартиляКвартиль журнала в Web of Science:
без квартиляБиблиографическое описание:
Кудрявцев, Илья Владимирович. Temperature influence on dynamic behavior of spacecraft waveguides [Текст] / Илья Владимирович Кудрявцев, Максим Валерьевич Брунгардт, Сергей Иванович Трошин, Андрей Иванович Колотов, Александр Евгеньевич Митяев // IOP Conference Series Materials Science and Engineering. — 2020. — Т. 862.Аннотация:
The lowest eigenfrequency and critical force are important parameters which defines
structure behavior under dynamic loading. The paper describes the influence of temperature on
the lowest eigenfrequency and critical force of a waveguide straight section in the spacecraft.
The straight waveguide modeled according to the beam theory. It has been shown that the
temperature change is equivalent an appearance and action of the axial force which makes the
structure prestressed and significantly modifies its lowest eigenfrequency. An example of
calculation of dependence of the waveguide straight section lowest eigenfrequency on
temperature was considered, and it showed the existence of a critical temperature value, where
the vibration frequency equals to zero. This critical temperature value corresponds to the loss
of waveguide structure stability which is extremely undesirable and requires special methods to
avoid such a situation. Stress state of waveguide in case of its loss of stability is also estimated.