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| Coupling dynamics of Timoshenko beam with shear deformation |
| Revised:July 07, 2004 |
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| DOI：10.7511/jslx20064079 |
| KeyWord:shear deformation,Timoshenko beam,coupling dynamics, |
| LI Bin LIU Jin-yang HONG Jia-zhen |
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| Abstract: |
| In this paper,the coupling dynamics of a Timoshenko beam attached to a central rigid body is investigated.Based on continuum medium mechanics and Timoshenko beam assumption,the coupling dynamic equations of flexible beam attached to a central rigid body are derived by using virtual work principle and nonlinear strain-displacement theory.Simulation results show that the shear effect is significant with the increase of the proportion of the inertia moment to the cross-section area and the increase of the rotation speed of the beam has no effect on the difference between the two models of the beam.Furthermore,the applicability of the Euler-Bernoulli assumption in which the shear effect is ignored is investigated. |
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