Dynamic analysis of a spinning composite 'deep' hyperbolic coupling

摘要

A dynamic analysis of a "deep" hyperbolic composite coupling is presented. A model is developed based on "shell/beam" assumptions, the energy approach, and the application of the extended Lagrange's Equations. The mathematical model is solved, using the finite element method, to study the effect of the minimum diameter of a specific "deep" coupling on its dynamic characteristics. The results of the developed finite element program are compared with the corresponding 3D-ANSYS ones. The effect of the spinning speed is also investigated. Results indicate that the developed model is very accurate in predicting the axial and meridional/tangential natural frequencies. The model, however, over predicts the flexural natural frequency. The model also successfully captures the branching phenomenon of the flexural natural frequency exhibited with spinning. (c) 2008 Elsevier Ltd. All rights reserved.