Abstract
A dynamic condensation approach to finite element model updating is proposed in this paper. The global structure is transformed into a condensed system after being divided according to master DOFs and slave DOFs. The eigensolutions and eigensensitivities of a structure are calculated from the condensed eigenequation together with a transformation matrix relating the master DOFs to the full DOFs. The transformation matrix and its sensitivity with respect to a specific parameter are obtained after a simple iterative process. Consequently, the model updating process is performed on the reduced system, which reduces the computational load of the traditional model updating methods that perform on the global structure. Application of the proposed dynamic condensation method to a frame structure demonstrates that the present method is effective in finite element model updating.
Original language | English |
---|---|
Title of host publication | Mechanics of Structures and Materials |
Subtitle of host publication | Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016 |
Publisher | CRC Press/Balkem |
Pages | 1069-1076 |
Number of pages | 8 |
ISBN (Print) | 9781138029934 |
Publication status | Published - 1 Jan 2017 |
Event | 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016 - Perth, Australia Duration: 6 Dec 2016 → 9 Dec 2016 |
Conference
Conference | 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016 |
---|---|
Country/Territory | Australia |
City | Perth |
Period | 6/12/16 → 9/12/16 |
ASJC Scopus subject areas
- Mechanics of Materials
- Civil and Structural Engineering