| Title: | Bayoumy, A.H., Nada, A.A., Megahed, S.M. , 2012, "Modeling Slope Discontinuity Of Large Size Wind-Turbine Blade Using Absolute Nodal Coordinate Formulation", Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference (IDETC/CIE 2012), August 12-15, 2012, Chicago, Illinois, USA. |
| Authors: | Bayoumy, A.H., Nada, A.A., Megahed, S.M. |
| Year: | 2012 |
| Keywords: | Not Available |
| Journal: | Not Available |
| Volume: | Not Available |
| Issue: | Not Available |
| Pages: | Not Available |
| Publisher: | Not Available |
| Local/International: | International |
| Paper Link: | |
| Full paper | Ayman Ali Ahmed Nada_bayoumy2012.pdf |
| Supplementary materials | Not Available |
| Abstract: |
This paper describes the use of the Absolute Nodal Coordinate Formulation (ANCF) in modeling large-size wind turbine blades. An efficient procedure is developed for mapping NACA airfoil wind-turbine blades into ANCF thin plate models. The procedure concerns the wind turbine blade with non-uniform, twisted nature. As a result, the slope discontinuity problem arises and presents numerical errors in the dynamic simulation. This investigation illustrates a method for modeling slope discontinuity resulting from the variations of the cross sectional layouts across the blade. A method is developed and applied for the gradient-deficient thin plate element in order to account for structural discontinuity. The numerical results show a numerical convergence and satisfy the principle of work and energy in dynamics. The simulation results are compared with those obtained using ANSYS code with a good agreement. |
