摘要：Present paper describes determining of mode shapes and Eigen fre-quencies of a U shaped plate structure without and with damages using the finite element method of SolidWorks software. The first thirty mode shapes and Eigen frequencies obtained by simulations on U shaped plate structure design were determined considering the structure with-out any damage or with different types of damage. The relative varia-tions of Eigen frequencies obtained by simulation using finite element method (FEM) were calculated and a graphical representation was made considering its mode shapes. Finally, the results for all case stud-ies were evaluated.
