Methodical investigations of aerodynamic derivatives of a sharp cone on a setup with free oscillations at supersonic velocities

Adamov, N. P.; Gurin, A. M.; Chasovnikov, E. A.

doi:10.1063/1.5065245

AIP Conference Proceedings

2018

DOI: 10.1063/1.5065245

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Methodical investigations of aerodynamic derivatives of a sharp cone on a setup with free oscillations at supersonic velocities

N. P. Adamov¹,

A. M. Gurin²,

E. A. Chasovnikov³

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Cited by 2 publications

References 7 publications

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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 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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Study of Self-Excited Pitch Oscillations of Conical-Spherical Body at Mach Number M = 1.75 and Two Moments of Inertia

Mishchenko,

Chasovnikov

2023

jour

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Tests of a conical-spherical body in a supersonic wind tunnel were carried out on a free oscillation installation along the pitch angle at a Mach number M = 1.75 and two moments of inertia of the body relative to the axis of rotation. For a body with a large moment of inertia, self-oscillations with the amplitude of ca. 10 deg were obtained. For the first time, the phenomenon of degeneration of self-oscillations for a body with a smaller moment of inertia has been discovered. An attempt was made to model the phenomenon using an ordinary linear differential equation of the first order

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Methodical investigations of aerodynamic derivatives of a sharp cone on a setup with free oscillations at supersonic velocities

Cited by 2 publications

References 7 publications

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

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

Study of Self-Excited Pitch Oscillations of Conical-Spherical Body at Mach Number M = 1.75 and Two Moments of Inertia

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