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Dynamic stability of a rotating Timoshenko beam with a flexible root

✍ Scribed by B.A.H. Abbas

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 351 KB
Volume: 108
Category: Article
ISSN: 0022-460X
DOI: 10.1016/s0022-460x(86)80308-x

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✦ Synopsis

The ettects of rotational speed and root flexibilities on the static buckling loads and on the regions of dynamic instability of a Timoshenko beam are investigated by finite element method. Due to the action of rotation, the buckling loads are increased and the beam becomes less sensitive to periodic excitation and due to the action of the rotational root flexibility, the buckling loads are diminished and the beam becomes more sensitive to periodic excitation. It is concluded also that the translational root flexibility has no effect on the static buckling loads and for small values of it the fundamental region of dynamic instability remains unchanged.

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