title: Composite wing vibration coupling control
metadata.name: dc.contributor.author
metadata.value: Ryabov, Victor M.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Yartsev, Boris A.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2023-05-19T07:40:34Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2023-05-19T07:40:34Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2023-05
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Ryabov V. M., Yartsev B.A. Composite wing vibration coupling control. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2023, vol. 10 (68), issue 2, pp. 344–356. https://doi.org/10.21638/spbu01.2023.214 (In Russian)
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu01.2023.214
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/41493
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The paper discusses the possibility to control coupled bending-twisting vibrations of composite
  wing by means of the monoclinic structures in the reinforcement of the plating.
  Decomposing the potential straining energy and kinetic energy of natural vibration modes
  into interacting and non-interacting parts, it became possible to introduce the two coefficients
  that integrally consider the effect of geometry and reinforcement structure upon
  the dynamic response parameters of the wing. The first of these coefficients describes the
  elastic coupling of the natural vibration modes, the second coefficient describes the inertial
  one. The paper describes the numerical studies showing how the orientation of considerably
  anisotropic CRP layers in the plating affects natural frequencies, loss factors, coefficients of
  elastic and inertial coupling for several lower tones of natural bending-twisting vibrations of
  the wing. Besides, for each vibration mode, partial values of the above mentioned dynamic response parameters were determined by means of the relationships for orthotropic structures
  where instead of “free” shearing modulus in the reinforcement plant, “pure” shearing
  modulus is used. Joint analysis of the obtained results has shown that each pair of bendingtwisting
  vibration modes has its orientation angle ranges of the reinforcing layers where
  the inertial coupling caused by asymmetry of the cross-section profile with respect to the
  main axes of inertia decreases, down to the complete extinction, due to the generation of
  the elastic coupling in the plating material. These ranges are characterized by the two main
  features: 1) the difference in the natural frequencies of the investigated pair of bendingtwisting
  vibration modes is the minimum and 2) natural frequencies of bending-twisting
  vibrations belong to a stretch restricted by corresponding partial natural frequencies of the
  investigated pair of vibration modes. This result is of practical importance because it enables
  approximate analysis of real composite wings with complex geometry in the existing
  commercial software packages.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 10; Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: composite wing
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: coupled vibrations
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: elastic coupling
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: inertial connectivity
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: natural frequency
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: loss factors
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Composite wing vibration coupling control
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 344-356.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/41493/1/344-356.pdf
resources.format: Adobe PDF
resources.size: 922,9 kB