Rotational oscillation study of the cylinders with end plates in airflow

Ryabinin, A. N.; Bogomolov, R.M.

doi:10.1063/1.5034655

Cited by 3 publications

(1 citation statement)

References 1 publication

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“…The signal processing technique is given in [9,10]. Typical dependencies of the cylinder inclination on time are presented in the Fig.2 TOPICAL PROBLEMS OF FLUID MECHANICS 201 _______________________________________________________________________ Approximately the amplitude of the rotational oscillations can be determined by graphs similar to those shown in Fig.…”

Section: Calculationsmentioning

confidence: 99%

Influence of End Plates on Rotational Oscillations of a Rectangular Cylinder

Shmigirilov¹,

Ryabinin²

2020

Topical Problems of Fluid Mechanics 2020

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Oscillations of rectangular cylinder elastically suspended in a air-flow were studied experimentally. The amplitude of oscillations measured at various cylinder lengths was shown to be affected by changes in incoming flow velocity and also by the presence or absence of end plates restricting the flow of air through the ends of the cylinder. Steady-state oscillation amplitude increases with an increase in cylinder aspect ratio. In the presence of end plates, the oscillation amplitude linearly depends on the Strouhal number. At the cylinder aspect ratio of five, the presence or absence of end plates on the cylinder has no effect on the oscillation amplitude.

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Section: Calculationsmentioning

confidence: 99%

Influence of End Plates on Rotational Oscillations of a Rectangular Cylinder

Shmigirilov¹,

Ryabinin²

2020

Topical Problems of Fluid Mechanics 2020

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

Kaufman

Ryabinin

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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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.

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Effect of aspect ratio and end plates on rotational oscillations of thick plates in air flow

Shmigirilov

Ryabinin

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The steady oscillations of elastically fixed thick plates in the air flow are considered. The oscillation amplitudes are measured using the strain gauge method. In experiments, the aspect ratio varies. Some of the experiments were performed with end plates. Steady-state oscillation amplitude increases with an increase in plate aspect ratio. In the presence of end plates, the oscillation amplitude linearly depends on the Strouhal number. Increasing the aspect ratio of the thick plate from 5 to 7 does not lead to a significant change in the amplitude of oscillations.

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Rotational oscillation study of the cylinders with end plates in airflow

Cited by 3 publications

References 1 publication

Influence of End Plates on Rotational Oscillations of a Rectangular Cylinder

Influence of End Plates on Rotational Oscillations of a Rectangular Cylinder

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

Effect of aspect ratio and end plates on rotational oscillations of thick plates in air flow

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