Spectral analysis for the transverse vibration of an axially moving Timoshenko beam

Spectral analysis for the transverse vibration of an axially moving Timoshenko beam

The use of frequency-dependent spectral element matrix (or exact dynamic stiffness matrix) in structural dynamics is known to provide very accurate solutions, while reducing the number of degrees of freedom to resolve the computational and cost problems. Thus, in the present paper, the spectral elem...

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Veröffentlicht in:Journal of sound and vibration 2004-04, Vol.271 (3), p.685-703
Hauptverfasser: Lee, Usik, Kim, Joohong, Oh, Hyungmi
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Sprache:eng
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Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
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Kim, Joohong
Oh, Hyungmi
description The use of frequency-dependent spectral element matrix (or exact dynamic stiffness matrix) in structural dynamics is known to provide very accurate solutions, while reducing the number of degrees of freedom to resolve the computational and cost problems. Thus, in the present paper, the spectral element model is formulated for the axially moving Timoshenko beam under a uniform axial tension. The high accuracy of the present spectral element is then verified by comparing its solutions with the conventional finite element solutions and exact analytical solutions. The effects of the axial velocity and axial tension on the vibration characteristics, the dispersion relation, and the stability of a moving Timoshenko beam are analytically and numerically investigated.
doi_str_mv 10.1016/S0022-460X(03)00300-6
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subjects Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
title Spectral analysis for the transverse vibration of an axially moving Timoshenko beam
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