Vibrations of Elliptic Arc Bar Perpendicular to its Plane

摘要: We have researched the vibrations of elliptic arc bar perpendicular to its plane. obtain Lagrangian curved bars expressed by length, and then using a new variable we reconstruct Lagrangian, from which equations motion boundary conditions. solve in case show graphs frequencies modes symmetric bars. Their conditions are built-in, rolled supported at both ends. This method is also useful research other as cosine, catenary parabolic