A two-node superelement description for modelling of flexible complex-shared beam-like components

摘要: In this paper, a two-node superelement description is proposed for use in multibody models which capable of modelling flexible complex-shaped beam-like components. Assuming that the deformations with respect to co-rotational frame remain small, substructuring methods may be used obtain dynamical model reduced mass and stiffness matrices from linear finite element model. The development established by linking non-linear beam describing large rigid body motion small elastic deformations. This achieved equating their potential kinetic energies. Two examples are included. A simulation spin-up uniform cross-section similar simultaneously excited out-of-plane direction. Both show good agreement simulations obtained using elements.