Elements of dynamic parameters modification and sensitivity

Abstract

Structural modifications can cause changes in the matrices of some elements. Depending on the type of structure, or a desired change, a group of elements can be modified. This paper analyzes the effects of small and large-scale modifications of some groups of elements on structural eigenvalues and frequencies. The process of analysis is done using a computer program, based on using of finite element methods and the implementation of structure energy distributions.

Keywords

• kinetic and potential energy
• sensitivity
• eigenvalues
• eigenvectors
• dynamic modification