Dynamic analysis of impact loads in flexible multibody systems by FEM

This dissertation is about to solve contact-impact problems of flexible systems with the finite element analysis. It treated the longitudinal compressive impact of a flexible beam with a rigid body. The contact-impact model is analyzed, and the dynamics model is dispersed with the finite element analysis. The dynamics equation that governs the systems is acquired. The results prove that the technique is able to identify the elastic waves that travel along the flexible beam, and a force balance is continuously made to yield the contact stress. The numerical solution shows an excellent agreement between the numerically obtained contact force with the exact solution. Also, the relation between the exact solution and numerical solution of different modes was discussed.