DEVELOPMENT AND TESTING OF AN ENGINEERING METHOD FOR DETERMINING THE VIBRATION AMPLITUDE OF SPAN STRUCTURES

An engineering method is proposed for determining the amplitudes of vortex-induced vibrations, which accounts for the dependence of the excitation force coefficient, the Strouhal number, and the logarithmic decrement on the vibration amplitude of a structure, as well as the correlation distribution...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2022-12, Vol.63 (6), p.1050-1056
Main Authors: Salenko, S. D., Gosteev, Yu. A.
Format: Article
Language:English
Subjects:
Aerodynamic forces
Amplitudes
Applications of Mathematics
Classical and Continuum Physics
Classical Mechanics
Fluid- and Aerodynamics
Force distribution
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Physics
Physics and Astronomy
Strouhal number
Vortex-induced vibrations
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Summary:An engineering method is proposed for determining the amplitudes of vortex-induced vibrations, which accounts for the dependence of the excitation force coefficient, the Strouhal number, and the logarithmic decrement on the vibration amplitude of a structure, as well as the correlation distribution of aerodynamic force pulsations along the length of a structure. This method also includes the Eurocode method as a special case and, in contrast to the known ones, makes it possible to more reliably calculate the amplitudes of vortex-induced vibrations of span structures.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894422060189