Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
Damped rotational vibrations of a long cylinder with a disk in the air flow. / Kaufman, D. V.; Ryabinin, A. N.
в: Journal of Physics: Conference Series, Том 1959, № 1, 012027, 01.07.2021.Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
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TY - JOUR
T1 - Damped rotational vibrations of a long cylinder with a disk in the air flow
AU - Kaufman, D. V.
AU - Ryabinin, A. N.
N1 - Publisher Copyright: © 2021 Published under licence by IOP Publishing Ltd.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - We consider the drag and the damped rotational oscillations of a cylinder. The cylinder length-to-diameter ratio is nine. At the upstream end of the cylinder, a disk is mounted coaxially on the leg. The disk reduces the drag of the cylinder. The effect of the disk on damping of oscillations is described by aerodynamic rotational derivatives. Experiment in the wind tunnel is carried out with the flow past a cylinder fixed on an elastic spring suspension. In experiment, the diameter of the coaxial disk, position of axis of rotation and the gap between the disk and the cylinder vary. Deflected from the equilibrium position, the cylinder performs damped oscillations. The dependence of the amplitude of angular oscillations on time is determined by the tensometric method. Aerodynamic coefficients of rotational derivatives are found.
AB - We consider the drag and the damped rotational oscillations of a cylinder. The cylinder length-to-diameter ratio is nine. At the upstream end of the cylinder, a disk is mounted coaxially on the leg. The disk reduces the drag of the cylinder. The effect of the disk on damping of oscillations is described by aerodynamic rotational derivatives. Experiment in the wind tunnel is carried out with the flow past a cylinder fixed on an elastic spring suspension. In experiment, the diameter of the coaxial disk, position of axis of rotation and the gap between the disk and the cylinder vary. Deflected from the equilibrium position, the cylinder performs damped oscillations. The dependence of the amplitude of angular oscillations on time is determined by the tensometric method. Aerodynamic coefficients of rotational derivatives are found.
UR - http://www.scopus.com/inward/record.url?scp=85111995948&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1959/1/012027
DO - 10.1088/1742-6596/1959/1/012027
M3 - Conference article
AN - SCOPUS:85111995948
VL - 1959
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012027
T2 - International Scientific Conference on Mechanics "The Ninth Polyakhov's Reading", ISCM 2021
Y2 - 9 March 2021 through 12 March 2021
ER -
ID: 84642929