title: Damping oscillations of a cylinder with a coaxial disc and a stabilizer
metadata.name: dc.contributor.author
metadata.value: Kaufman, Daniil V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Ryabinin, Anatoly N.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2024-05-30T15:48:50Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2024-05-30T15:48:50Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2024-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Kaufman D.V., Ryabinin A.N. Damping oscillations of a cylinder with a coaxial disc and a stabilizer. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2024, vol. 11 (69), issue 1, pp. 161–170. https://doi.org/10.21638/spbu01.2024.111 (In Russian)
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu01.2024.111
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/45458
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The damped rotational oscillations of the cylinder, which is equipped with a coaxial disk in
  the head part, and has a stabilizer in the tail part, are studied. The elongation of the cylinder
  (the ratio of length to diameter) is nine. The cylinder is mounted in the test section of the
  low velocities wind tunnel with a wire suspension containing steel springs. In the equilibrium
  position, the axis of the cylinder is horizontal and parallel to the velocity vector of the
  incoming flow. Under the action of the air flow, the attenuation of rotational oscillations
  of the cylinder changes. A semiconductor strain gauge is attached to one of the suspension
  springs, which measures the dependence of spring tension on time during oscillations. The
  voltage at the output of the strain gauge is transmitted to the PC oscilloscope. The digital
  signal of the oscilloscope is transmitted to the computer. After calibration of the device, the
  frequency and amplitude of damped rotational oscillations around a horizontal axis passing
  through the center of the cylinder and perpendicular to the velocity vector of the incoming
  flow are determined. The effect of the air flow is described by analogues of rotational
  derivatives, which in the case of bluff bodies depend on the amplitude of the oscillations of
  the angle of inclination of the body and on the amplitude of the angular velocity. A simple
  model of the stabilizer’s effect on rotational derivatives is proposed.
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 11 (69); Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: wind tunnel
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: rotational vibrations
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: strain gauge
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: cylinder
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Damping oscillations of a cylinder with a coaxial disc and a stabilizer
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 161-170.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/45458/1/161-170.pdf
resources.format: Adobe PDF
resources.size: 678,43 kB