M. S. M., Fouzi and M. S. M., Sani (2020) Finite element modeling and updating for dynamic study of exhaust structure. In: 2nd Regional Conference on Mechanical and Marine Engineering, ReMME 2018 , 7 - 9 November 2018 , Ipoh, Malaysia. pp. 305-313.. ISSN 2195-4356 ISBN 9789811500015
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Abstract
Modal analysis is an approach to determine the dynamic behavior of a structure through numerical analysis or experimental approach. Nowadays, numerical analysis has been preferred by most researchers and engineers compared to experimental analysis to analyze the structure due to expenditure and time consuming factors of the research. Recently, numerical analysis is done computationally or well known as Finite Element Analysis (FEA) by using finite element (FE) model to replicate the real test structure. Instead of advantage of FE analysis, the trustworthiness of FE model has been questioned since simplification has been made during design stage for complex structure and inaccurate of geometry input of the model. Hence, this paper is carried out to reduce the discrepancies between numerical prediction results with measured test data on FE model of exhaust structure by implementing FE model updating using SOL200 algorithm. Initially, the FE model is running on normal mode analysis SOL103 to extract the modal parameters such as natural frequency and mode shape. Then, the numerical pre-diction result has been correlated and validated with measured test data obtained through Experimental Modal Analysis (EMA). Due to disagreement between numerical result and experimental data in correlation process, the FE model has been updated using SOL200 algorithm. The percentage error between numerical prediction result and measured test data is minimized from 5.67 to 3.23% after been updated. It’s shown the capability SOL200 algorithm in preparing the reliable FE model before been used for further analysis such as structural dynamic modification.
| Item Type: | Conference or Workshop Item (Lecture) |
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| Additional Information: | Indexed by Scopus; Lecture Notes in Mechanical Engineering |
| Uncontrolled Keywords: | Dynamic study; Joints strategy; Finite element analysis; Experimental modal analysis; FE model updating |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Institute of Postgraduate Studies Centre of Excellence: Automotive Engineering Centre Centre of Excellence: Automotive Engineering Centre Faculty of Mechanical and Automotive Engineering Technology |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 05 Oct 2020 03:25 |
| Last Modified: | 05 Oct 2020 03:25 |
| URI: | http://umpir.ump.edu.my/id/eprint/27958 |
| Download Statistic: | View Download Statistics |
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