Effect of coaxially mounted disks on oscillations of a cylinder of large aspect ratio in air flow

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Abstract

The damped rotational oscillations of a cylinder whose length-to-diameter ratio is nine are considered. In the head part of the cylinder, a disc is mounted coaxially on the leg. The effect of the disk on damping of oscillations is described by aerodynamic rotational derivatives. Wind tunnel experiment is performed with the flow past a cylinder fixed on an elastic spring suspension. The diameter of the coaxial disk and the distance between the disk and the end of the cylinder vary. Deflected from the equilibrium position, the cylinder performs damping oscillations. The dependence of the amplitude of rotational vibrations on time is determined by the tensometric method. Coefficients of rotational pitch derivatives are found.
Original languageEnglish
Article number012002
Number of pages5
JournalIOP Conference Series: Materials Science and Engineering
Volume927
DOIs
StatePublished - 25 Sep 2020
EventXIII International Conference on Applied Mathematics and Mechanics in the Aerospace Industry - Alushta, Russian Federation
Duration: 6 Sep 202013 Sep 2020

Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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