The nonlinear dynamic features of compression roller batteries were investigated together with their response to primary resonance excitation and internal interactions between modes. Starting from a parametric model based on previously developed Lagrangian formulation, asymptotic treatment the equations motion was first performed characterize nonlinearity lowest normal modes system. They found ...

The nonlinear system becomes an area with numerous investigations over the past decades. The conventional modal analysis could not be  applied on nonlinear continuous system which makes it impossible to construct the reduced order models and obtain system response based on limited number of measurement points. Nonlinear normal modes provide a useful tool for extending modal analysis to nonlinea...

As the size of wind turbine blades increases, influence geometric nonlinearity on aerodynamic, structural and design becomes more serious. In this work, efficient aero-elastic calculation large flexible is studied. order to solve problem aeroelastic caculation blades, work applied geometrically exact beam theory based Legendre spectral finite element coupled with blade momentum establish analys...