Nonlinear flap-lag axial equations of a rotating beam

摘要: It is possible to identify essentially four approaches by which analysts have established either the linear or nonlinear governing equations of motion for a particular problem related dynamics rotating elastic bodies. The include effective applied load artifice in combination with variational principle and use Newton's second law, written as D'Alembert's principle, deformed configuration. A third approach method strain-displacement relations first-degree displacement field are used. introduced Vigneron (1975) deriving flap-lag beam constitutes fourth approach. reported investigation shows that all make geometric theory elasticity. An alternative coupled flap-lag-axial also discussed.