Enhanced 3D solid finite element formulation for rotor dynamics simulation

In this paper, an enhanced solid finite element formulation for rotor dynamics analysis is presented. The kinematics first defined with a Total Lagrangian in order to account possible centrifugal stiffening effect and its associated pre-stress deformation. novelty of the three-dimensional proposed study then correctly consider inertia due small rotational deformation occurring around pre-stressed equilibrium position. motion characterized by interpolation translational degrees freedom element. accuracy convergence are tested on several numerical examples consisting rotating rigid disk Timoshenko beam different slenderness ratios. All results agree well analytical solutions excerpted from literature demonstrate usefulness applicability formulation.