This paper presents a method for solving the dynamic equations of multibody systems containing both rigid and flexible bodies. The proposed method uses independent coordinates and projects the dynamic equations on the constraint tangent manifold by means of a velocity transformation matrix. It can be used with a wide variety of integration formulae, considering both fixed and variable stepsizes. Topological semirecursive methods are used to take advantage of the relatively small number of parameters needed. An in depth implementation analysis is performed in order to evaluate the terms involved in the integration process. Numerical and stability issues are also discussed.
An Efficient Dynamic Formulation for Solving Rigid and Flexible Multibody Systems Based on Semirecursive Method and Implicit Integration
Manuscript received February 12, 2015; final manuscript received December 1, 2015; published online February 3, 2016. Assoc. Editor: Jozsef Kovecses.
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Funes, F. J., and de Jalón, J. G. (February 3, 2016). "An Efficient Dynamic Formulation for Solving Rigid and Flexible Multibody Systems Based on Semirecursive Method and Implicit Integration." ASME. J. Comput. Nonlinear Dynam. September 2016; 11(5): 051001. https://doi.org/10.1115/1.4032246
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