Direct coordinate partitioning for multibody dynamics based on finite element method

An unconventional coordinate partitioning method for flexible multibody dynamics based on the corotational finite element method is proposed. The method establishes the relationship between the nodal degrees of freedom and independent degrees of freedom hinge by hinge, and results in a set of differential equations as the governing equation. Computational examples show that the proposed method can give a physically valid solution for flexible motion during mechanical motion.