Dynamic residual based model updating in 3D applied element method | |
| Author | Chonlasit Phumsrang |
| Call Number | AIT Thesis no.ST-24-13 |
| Subject(s) | Finite element method--Data processing Structural analysis (Engineering) |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This thesis aimed to implement of an optimization algorithm in the 3D Applied Element Method(3DAEM)for conducting model updating of structures using operational modal data. In the field of structural engineering, operational modal analysis obtain from ambient vibration tests. It has become increasingly common. This thesis has integrated Modal dynamic residual model updating approach into 3DAEM. This give us advantage for model updating with operational modal analysis and understanding inside behavior. The verification session has shown that Modal dynamic residual approach is more accurate than current Eigenvector differential approach. In validation section, it show that Modal dynamic residual have better convergent rate than Eigenvector differential approach. In case study A, validation of Modal dynamic residual and Eigenvector differential approach aimed to compare performance of each approach under complex mode shape. The results show that, as the structural damage increase in each iteration, Modal dynamic residual has better convergent rate. In case study B, validation aimed to compare performance of each approach under high frequency mode shape which is challenging to converge accurately. The results show that, as the structural damage increase in each iteration, Modal dynamic residual also demonstrate equally reliable convergent rate with Eigenvector differential residual approach. |
| Year | 2024 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Krishna, Chaitanya |
| Examination Committee(s) | Anwar, Naveed;Raktipong Sahamitmongkol |
| Scholarship Donor(s) | Royal Thai Government;AIT Scholarship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2024 |