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Structural modal reanalysis for topological modifications with extended Kirsch method

✍ Scribed by Feng Rong; Su Huan Chen; Yu Dong Chen

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
196 KB
Volume
192
Category
Article
ISSN
0045-7825

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✦ Synopsis

In this paper, a new effective method for modal reanalysis of structures subjected to topological modifications is presented. The effect of inertia coupling between the old degrees of freedom and the new added degrees of freedom is introduced with iterative perturbation. Furthermore, the extended Kirsch method is utilized to improve the accuracy of the starting solutions. The numerical examples are given for frame and truss structures. Results are compared to the exact solution and prove that the proposed method is effective.

πŸ“œ SIMILAR VOLUMES

A universal method for structural static
A universal method for structural static reanalysis of topological modifications
✍ Su Huan Chen; Zhi Jun Yang πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 211 KB

## Abstract This paper presents a universal method, iterative combined approximation (iterative CA) approach, for structural static reanalysis of all types of topological modifications. The proposed procedure is basically an approximate two‐step method. First, the newly added degrees of freedom (DO