This paper describes primal and dual variational formulations to model spatial beams envisioned for multibody dynamics applications. Use is made of the finite rotation vector to parameterize the rotation field, and of its tangent maps to compute the tangent iteration matrices used to numerical integrate the equations of motion in descriptor form. A Total Lagrangean primal corotational method and an Updated Lagrangean mixed variational method are proposed to compute the tangent stiffness matrix of the spatial beam.
|Number of pages||11|
|State||Published - 1996|
|Event||37th AIAA/ASME/ASCE/AHS/ASC Structure, Structural Dynamics and Materials Conference, 1996 - Salt Lake City, United States|
Duration: Apr 15 1996 → Apr 17 1996
|Conference||37th AIAA/ASME/ASCE/AHS/ASC Structure, Structural Dynamics and Materials Conference, 1996|
|City||Salt Lake City|
|Period||04/15/96 → 04/17/96|