A geometrically exact beam model with non-uniform warping coherently derived from the Saint Venant rod

2014 ◽  
Vol 68 ◽  
pp. 33-46 ◽  
Author(s):  
Andrea Genoese ◽  
Alessandra Genoese ◽  
Antonio Bilotta ◽  
Giovanni Garcea
Keyword(s):  
Beam Model ◽  
Geometrically Exact Beam

scholarly journals A Numerical Solution for Modelling Mooring Dynamics, Including Bending and Shearing Effects, Using a Geometrically Exact Beam Model

2021 ◽  
Vol 9 (5) ◽  
pp. 486
Author(s):  
Tobias Martin ◽  
Hans Bihs
Keyword(s):  
Numerical Solution ◽  
Offshore Wind ◽  
Mooring Line ◽  
Beam Model ◽  
Tight Coupling ◽  
Energy Propagation ◽  
Two Phase ◽  
Geometrically Exact Beam ◽  
Mooring Dynamics ◽  
Rotational Deformation

During the operation of moored, floating devices in the renewable energy sector, the tight coupling between the mooring system and floater motion results in snap load conditions. Before snap events occur, the mooring line is typically slack. Here, the mechanism of energy propagation changes from axial to bending dominant, and the correct modelling of the rotational deformation of the lines becomes important. In this paper, a new numerical solution for modelling the mooring dynamics that includes bending and shearing effects is proposed for this purpose. The approach is based on a geometrically exact beam model and quaternion representations for the rotational deformations. Further, the model is coupled to a two-phase numerical wave tank to simulate the motion of a moored, floating offshore wind platform in waves. A good agreement between the proposed numerical model and reference solutions was found. The influence of the bending stiffness on the motion of the structure was studied subsequently. We found that increased stiffness increased the amplitudes of the heave and surge motion, whereas the motion frequencies were less altered.

scholarly journals Predeformed geometrically exact beam model for a dynamic‐response prosthesis

PAMM ◽  
2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Eduard S. Scheiterer ◽  
Sigrid Leyendecker
Keyword(s):  
Dynamic Response ◽  
Beam Model ◽  
Geometrically Exact Beam

scholarly journals Aeroelastic simulation of multi-MW wind turbines using a free vortex model coupled to a geometrically exact beam model

2016 ◽  
Vol 753 ◽  
pp. 082015 ◽  
Author(s):  
Joseph Saverin ◽  
Juliane Peukert ◽  
David Marten ◽  
George Pechlivanoglou ◽  
Christian Oliver Paschereit ◽  
...  
Keyword(s):  
Wind Turbines ◽  
Beam Model ◽  
Free Vortex ◽  
Vortex Model ◽  
Geometrically Exact Beam
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