The goal is to perform a complete static analysis, considering the oceanic loads and the unilateral contact with the seabed, extending the current standard analysis for situations in which very large rotations occurs, in particular, large torsion. An updated Lagrangian framework for the rotation parameterization has been used for the description of the exact kinematics. Hi, I have a simple question : does Orcaflex interface work in OpenFAST I haven't found any information in the documentation of OpenFAST on this subject, except that one have to set CMake option ORCADLLLOAD to ON. Method for Flexural Motion Analyses of Floating Kirchhoff Plates Induced by Moving Vehicles. This work presents a structural geometrically-exact 3D beam model, discretized using the finite element method for riser modeling. Orcaflex User Manual: Orcaflex version 10.3c. The governing equations for a riser that are provided by Kirchhoff's rod theory reduce to those for an elastica and a string once certain effects are ignored. 3D and change the contact FemCable Orcaflex ANSYS region and, also. This is known as Kirchhoff's rod theory and relevant background on this rod theory can be found in a variety of textbooks including Antman (2005), Love (1927), and O'Reilly (2017). The suspended part of these elements is named "riser" and is subjected to the ocean environment loads, such as waves and sea current. such as 9 and using a well presented treatment in works of Kirchhoff tensor P. Abstract : In offshore applications there are elements that can be modeled as long beams, such as umbilical cables, flexible and rigid pipes and hoses, immersed in the sea water, suspended from the floating unit to the seabed.