Study of Self-Excited Pitch Oscillations of Conical-Spherical Body at Mach Number M = 1.75 and Two Moments of Inertia-Reference-Cited by-同舟云学术

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

Published:2023-08-29 Issue:1 Volume:18 Page:43-52
ISSN:2541-9447
Container-title:SIBERIAN JOURNAL OF PHYSICS
language:
Short-container-title:jour

Author:

Mishchenko N. A.¹,Chasovnikov E. A.¹^ORCID

Affiliation:

1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS

Abstract

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

Publisher

Novosibirsk State University (NSU)

Subject

Automotive Engineering

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