Iterative Component Mode Synthesis Using a Priori and a Posteriori Criteria
- Authors
- Kim, Soo Min; Kim, Jin-Gyun; Park, K. C.; Chae, Soo-Won
- Issue Date
- 5월-2019
- Publisher
- AMER INST AERONAUTICS ASTRONAUTICS
- Citation
- AIAA JOURNAL, v.57, no.5, pp.2145 - 2157
- Indexed
- SCIE
SCOPUS
- Journal Title
- AIAA JOURNAL
- Volume
- 57
- Number
- 5
- Start Page
- 2145
- End Page
- 2157
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/65890
- DOI
- 10.2514/1.J057661
- ISSN
- 0001-1452
- Abstract
- An iterative algorithm of component mode synthesis for a rational reduced-order modeling is proposed. The present algorithm consists of three steps: initial mode selection with a priori criterion, model reduction using the selected modes, and a posteriori error evaluation. The algorithm is based on the Craig-Bampton method, which is one of the most widely used techniques. Specifically, the present algorithm uses, in a judicious manner, both an a priori mode selection criterion employing the moment-matching strategy and an a posteriori error estimation technique in evaluating the relative eigenvalue errors. If desired, an optional step of boundary interface reduction offers an additional possibility of obtaining a more compact model. The proposed iterative algorithm is recommended to researchers as well as commercialized software users in developing linear reduced-order structural dynamics models. Numerical examples are presented for its practical usage and performance.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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