A new approach for imperfect boundary conditions on the dynamic behavior

Real beams have non-ideal boundary conditions and it is necessary to use new models determine the real modal parameters. Models that ideal do not fully reflect reality can lead unsatisfactory description of dynamic behavior. The hinged – conditions, which in focus paper, are analyzed as a single beam, but continuous beam with three spans, free at ends. spans for cases intermediate supports occupy any position along length by an analytical solution problem, example when located very close ends thus simulating case both ends; situation one clamped imperfect end; anywhere on length, hypothetic fix supports. analytic results compared numerical using finite elements method.