VIBRATION AND STABILITY OF PRETWISTED SPINNING THIN-WALLED COMPOSITE BEAMS FEATURING BENDING–BENDING ELASTIC COUPLING
A number of issues related to the modelling, vibration and stability of anisotropic pretwisted beams rotating at constant angular speed about the longitudinal body-axis fixed in the inertial space are investigated. The analysis is carried out in the framework of a refined theory of thin-walled aniso...
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Veröffentlicht in: | Journal of sound and vibration 2000-10, Vol.237 (3), p.513-533 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A number of issues related to the modelling, vibration and stability of anisotropic pretwisted beams rotating at constant angular speed about the longitudinal body-axis fixed in the inertial space are investigated. The analysis is carried out in the framework of a refined theory of thin-walled anisotropic composite beams featuring bending–bending elastic coupling, and encompassing a number of non-classical features such as transverse-shear, anisotropy and pretwist. Special attention is paid to the effect of the spinning speed, pretwist angle, axial compressive load and symmetry/non-symmetry of the beam cross-section on natural frequencies and instability of the structural system. Numerical illustrations highlighting their implication on vibration and stability are displayed and pertinent conclusions are outlined. |
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ISSN: | 0022-460X 1095-8568 |
DOI: | 10.1006/jsvi.2000.3100 |