title: Effect of rotation axis position of the cylinder on its rotational oscillations in the air stream
metadata.name: dc.contributor.author
metadata.value: Ryabinin, Anatoly N.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kiselev, Nikolai A.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2016-08-01T12:09:25Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2016-08-01T12:09:25Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-06
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/2469
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Steady rotational oscillations of circular cylinder in the air stream are studied experimentally. Cylinders
  are fixed by an elastic spring suspension, which allows making rotational oscillations about an axis perpendicular
  to the velocity vector of the incoming flow. Semiconductor strain gauge S-50 attached to the
  PC-oscilloscope Velleman PCS500A measures the dependence of the tension of one of the suspension
  springs on time. The results of the tension spring measurement are used to determine the amplitude of
  steady rotational oscillations of the cylinder in the flow. On the basis of experimental data obtained for
  different air flow velocities, the parameters of the mathematical model describing the oscillations of the
  cylinder in the flow are determined. Tests were conducted for cylinders with elongations 1.5, 2 and 3 at
  several positions of the axis of rotation. For the cylinder with elongation 2 maximum amplitude of oscillation
  occurs when the rotation axis passes through the geometric center of the cylinder. The amplitude of
  the oscillations of the cylinder with elongation 1.5 exceeds the amplitude of the oscillations of the cylinder
  with elongation 2, if the distance from the axis of rotation to downwind end is equal to the diameter of the
  cylinder. But in this configuration oscillations do not develop from the state of rest. In all experiments the
  equilibrium inclination angle of the cylinder axis with respect to the velocity vector of the the incoming
  flow varied in the range of several degrees. The mathematical model correctly describes the influence of
  angle of inclination on the amplitude of oscillation. Refs 14. Figs 6.
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. Series 1. Mathematics. Mechanics. Astronomy;Vol. 3 (61); Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: wind tunnel
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: bluff body
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: unsteady forces
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: oscillations
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: mathematical simulation
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Effect of rotation axis position of the cylinder on its rotational oscillations in the air stream
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Рябинин_Киселев.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/2469/1/%d0%a0%d1%8f%d0%b1%d0%b8%d0%bd%d0%b8%d0%bd_%d0%9a%d0%b8%d1%81%d0%b5%d0%bb%d0%b5%d0%b2.pdf
resources.format: Adobe PDF
resources.size: 420,75 kB