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The Vibrations Of Pre-Twisted Rotating Beams Of General Orthotropy

โœ Scribed by L.-W. Chen; H.-K. Chern

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
279 KB
Volume
167
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

A study is presented of the coupled bending-bending-torsion vibrations of a pre-twisted rotating cantilever beam of fibre-reinforced material. The free vibration and dynamic stability problems are discussed. The transverse shear deformation and rotary inertia are included. The effect of the pre-twisted angle, fibre orientation and rotation are studied. Numerical results have been calculated by using the finite element method, and they show that the effects mentioned above are more complex for orthotropic beams than for isotropic ones.

๐Ÿ“œ SIMILAR VOLUMES

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โœ S. Mohamed Nabi; N. Ganesan ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 389 KB

Vibration characteristics of pre-twisted metal matrix composite blades are analyzed by using beam and plate theories. A beam element with eight degrees of freedom per node has been developed with torsion-flexure, flexure-flexure and shear-flexure couplings which are encountered in twisted composite

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โœ H.P. Lee ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 834 KB

The equations of motion of a pre-twisted cantilever beam with a spinning base subject to axial base excitations are formulated by using Euler beam theory and the assumed mode method. The effects of sinusoidal perturbations in terms of the axial accelerations of the beam are then examined by using Bo