Structural modal reanalysis of topological modifications

Article type: Research Article

Authors: Su Huan Chen, | Cheng Huang, | Zongjie Cao,

Affiliations: Department of Mechanics, Jilin University of Technology, Changchun 130022, People's Republic of China | The Second Aeronautic Institute of Air Force, Changchun 130022, People's Republic of China

Abstract: This paper presents a procedure for modal reanalysis of structures with topological modifications. The procedure is based on the results of initial modal analysis of the original structure. It is necessary for topological modifications with the increase of joints and the number of degrees of freedom. The research results show that the proposed method is effective and easy to implement on a computer.

Keywords: topological modification, structural modal reanalysis, finite element system

Journal: Shock and Vibration, vol. 7, no. 1, pp. 15-21, 2000