Design of the fastening assembly of the guys on the power spokes reflector
Автор: Kolga V.V., Lykum A.I., Marchuk M.E., Filipson G.U.
Журнал: Siberian Aerospace Journal @vestnik-sibsau-en
Рубрика: Aviation and spacecraft engineering
Статья в выпуске: 3 vol.23, 2022 года.
Бесплатный доступ
Currently, global communication systems are developing towards mastering high frequency bands for organizing high-speed information transmission channels, which requires large-sized antenna systems with reflectors up to 50 meters. Most of the technical solutions used for assembling large-sized reflectors are based on technological volumetric templates that geometrically completely imitate the necessary reflective surface of the reflector. The mass of such templates increases in cubic dependence on the increase in the diameter of the reflector, which is why it becomes more and more laborious to use them when assembling large-sized antennas due to the increase in the dimensions and weight of the templates. The purpose of the study is to design the attachment point for guy wires on the power spoke of the re-flector for a "templateless" assembly. The spoke is a composite isogrid structure on which arms are fixed for attaching power units. The fastening unit is an assembly unit consisting of a bracket and clips and al-lows you to precisely adjust the necessary pull tension force to fix the cord in the working position without the use of one-piece fastening methods. The analytical approach and finite element analysis were adopted as research methods. Using an ana-lytical calculation, the maximum tensile force of the guys in the designed unit was determined, thereby set-ting the maximum load for its operation. The coefficient of friction between the cord and the clamp in each individual case is determined experimentally. After simplifying the design and construction scheme of the bracket, the analytical calculation was carried out for a three-dimensional rod frame. To confirm the results of the calculation, a finite element model of the bracket was built and its static analysis was carried out. For the developed model of the bracket, the maximum stresses were determined and their comparative analysis was carried out with the results obtained analytically. With the help of solid modeling, the mass and overall characteristics of the braces fastening unit are determined. The limiting ranges of tension forces and the materials used in the knot, as well as its strength characteristics, were determined. This unit can be used in the "templateless" method of assembling a reflector for a wide range of large antennas, it has high manufacturability and versatility.
Attachment unit, antenna, guy ropes, cord, large-sized reflector
Короткий адрес: https://sciup.org/148329641
IDR: 148329641 | DOI: 10.31772/2712-8970-2022-23-3-451-460
Список литературы Design of the fastening assembly of the guys on the power spokes reflector
- Belonovskaya I. D. Kolga V. V., Yarkov I. S., Yarkova E. A. [Parametric analysis of an an-isogrid body of a spacecraft for cleaning the orbit from space debris]. Siberian Aerospace Journal. 2021, Vol. 22, No. 1, P. 94–105 (In Russ.).
- Zamyatin D. A., Kolga V. V. [Modeling the design of the reflector mast]. Reshetnevsky Read-ings: Proceedings of the XXIV Intern. scientific conf. (November 10–13, 2020, Krasnoyarsk). Krasnoyarsk, 2020, P. 21–22 (In Russ.).
- Kolga V. V., Yarkov I. S., Yarkova E. A. [Development of a thermal panel for a small space-craft for navigation support]. Siberian Journal of Science and Technology. 2020, Vol. 21, No. 3, P. 382–388 (In Russ.).
- Kolga V. V., Marchuk M. E., Lykum A. I., and Philipson G. Yu. [Optimization of the location of attachment points for the instrument panel of a spacecraft based on modal analysis]. Siberian Aerospace Journal. 2021, Vol. 22, No. 2, P. 328–338 (In Russ.).
- Kolga V. V., Marchuk M. E., Lykum A. I., Sommer S. A. [Optimization of the location of the interface points of the instrument panel of the spacecraft]. Innovations. The science. Education. 2021, No. 6, P. 1401–1405 (In Russ.).
- Kolga V. V., Marchuk M. E., Lykum A. I., Romanenko G. A. [On approaches to predicting the acoustic impact on the shell elements of the spacecraft]. Reshetnev readings: materials of the XXV In-tern. scientific conf. (November 10–12, 2021, Krasnoyarsk). Krasnoyarsk, 2021, P. 38–41 (In Russ.).
- Gryanik M. V., Loman V. I. Razvertyvaemye zerkal'nye antenny zontichnogo tipa [Deployable mirror antennas of umbrella type]. Moscow, Radio and Communications Publ., 1987, 9 p.
- Chebotarev V. E., Kosenko V. E. Osnovy proektirovaniya kosmicheskikh apparatov infor-matsionnogo obespecheniya [Fundamentals of designing information support spacecraft]. Krasnoyarsk, 2011, 348 p.
- Testoedov N. A., Kolga V. V., Semenova L. A. Proektirovanie i konstruirovanie ballistich-eskikh raket i raket nositeley [Design and construction of ballistic missiles and launch vehicles]. Krasnoyarsk, 2014, 308 p.
- Testoedov N. A., Khalimanovich V. I. et al. Sposob izgotovleniya razvertyvayemogo krupno-gabaritnogo reflektora kosmicheskogo apparata [Method for manufacturing a deployable large space-craft reflector]. Patent RF №2350518, 2009.
- Semenov Yu. P., Strekalov A. F. et al. Sposob sborki krupnogabaritnykh razvertyvayemykh kosmicheskikh reflektorov i tekhnologicheskoye prisposobleniye dlya formirovaniya otrazhayushchey poverkhnosti reflektora [A method for assembling large-sized deployable space reflectors and a technological device for forming a reflective surface of a reflector]. Patent RF № 2296396, 2007.
- Velichko A. I., Shendalev D. O. et al. Sposob izgotovleniya krupnogabaritnogo trans-formiruyemogo reflektora [A method of manufacturing a large-sized transformable reflector]. Patent RF № 2674386, 2018.
- Polukhin N. V., Bychkov V. I. et al. Sposob izgotovleniya krupnogabaritnykh razvertyvaye-mykh reflektorov i ustroystvo dlya formirovaniya krivolineynoy poverkhnosti reflektora [A method for manufacturing large-sized deployable reflectors and a device for forming a curved reflector surface]. Patent RF №2276823, 2006.
- Anuryev V. I. Spravochnik konstruktora mashinostroitelya. Tom 1 [Handbook of a machine builder's designer. Vol. 1]. Moscow, Mashinostroenie Publ., 2001, 53 p.
- Lopatin A. V., Rutkovskaya M. A. [Review of designs of modern transformable space anten-nas. Part 1]. Siberian Aerospace Journal. 2007. No. 2. P. 51–57 (In Russ.).
