Identification of stiffness reduction in structure by consecutive method of the forward

Abstract

This paper presents the results of identification of stiffness reduction in structure. The problem is solving by the consecutive forward problem of structure analysis and minimize the squared error between the measured and calculated natural frequencies of the actual structure and finite element model. From the numerical calculation shows, models, algorithms, and calculation programs are reliable. The program can be used to of stiffness reduction in structure.

Keywords: Reduction; stiffness; natural frequencies; calculate; measure.