Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure

Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure

An exhaust structure is experienced dynamic loads caused by engine operational and road surface condition that affected its durability and performance. Hence, the purpose of this study is to perform finite element (FE) modelling of exhaust structure and the used of updating approach to improve its d...

Full description

Bibliographic Details
Main Authors: M. S. M., Sani, M. S. M., Fouzi, Yusrizal, Muchlis
Format: Conference or Workshop Item
Language:English
English
Published: IOP Publishing Ltd 2019
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/24347/
http://umpir.ump.edu.my/id/eprint/24347/
http://umpir.ump.edu.my/id/eprint/24347/1/69.%20Finite%20element%20%28FE%29%20modelling%20and%20updating%20of%20welded.pdf
http://umpir.ump.edu.my/id/eprint/24347/2/69.1%20Finite%20element%20%28FE%29%20modelling%20and%20updating%20of%20welded.pdf
id ump-24347
recordtype eprints
spelling ump-243472019-04-05T02:48:41Z http://umpir.ump.edu.my/id/eprint/24347/ Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure M. S. M., Sani M. S. M., Fouzi Yusrizal, Muchlis TJ Mechanical engineering and machinery An exhaust structure is experienced dynamic loads caused by engine operational and road surface condition that affected its durability and performance. Hence, the purpose of this study is to perform finite element (FE) modelling of exhaust structure and the used of updating approach to improve its dynamic behaviour. Due to its design, exhaust structure is built-up from several parts connected with welded joints. These welded joints significantly contribute to the dynamic behaviour of the structure. Four types of element connector that are RBE2, CBAR, CBEAM and CELAS have been used to replicate FE model of welded joint on the structure. Modal parameters (natural frequency and mode shape) of the FE model have been obtained from normal mode analysis using finite element analysis (FEA) software, MSC. Nastran/Patran. The precision of numerical predicted result from FEA is compared with its measured counterpart. The measured test data obtained through experimental modal analysis (EMA) using impact hammer and roving accelerometers under free-free boundary conditions. Under correlation process, CBAR element connector was chosen to model the welded joint due to its accurate prediction of natural frequency and contains updating parameters. FE model updating process was performed to improve the correlation between EMA and FEA. Ahead of updating process, sensitivity analysis was done to select the most sensitive updating parameter. As a result, total percentage error of natural frequency for updated CBAR model is reduced significantly from 8.74 % to 3.45 %. Consequently, CBAR element connector was chosen as the most reliable joint element in FE model to represent welded joint on exhaust structure. IOP Publishing Ltd 2019-01 Conference or Workshop Item PeerReviewed pdf en cc_by http://umpir.ump.edu.my/id/eprint/24347/1/69.%20Finite%20element%20%28FE%29%20modelling%20and%20updating%20of%20welded.pdf pdf en http://umpir.ump.edu.my/id/eprint/24347/2/69.1%20Finite%20element%20%28FE%29%20modelling%20and%20updating%20of%20welded.pdf M. S. M., Sani and M. S. M., Fouzi and Yusrizal, Muchlis (2019) Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure. In: 1st International Postgraduate Conference on Mechanical Engineering, IPCME 2018, 31 October 2018 , Universiti Malaysia Pahang, Pekan, Pahang. pp. 1-10., 469 (1). ISSN 17578981 https://doi.org/10.1088/1757-899X/469/1/012099
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
M. S. M., Sani
M. S. M., Fouzi
Yusrizal, Muchlis
Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure
description An exhaust structure is experienced dynamic loads caused by engine operational and road surface condition that affected its durability and performance. Hence, the purpose of this study is to perform finite element (FE) modelling of exhaust structure and the used of updating approach to improve its dynamic behaviour. Due to its design, exhaust structure is built-up from several parts connected with welded joints. These welded joints significantly contribute to the dynamic behaviour of the structure. Four types of element connector that are RBE2, CBAR, CBEAM and CELAS have been used to replicate FE model of welded joint on the structure. Modal parameters (natural frequency and mode shape) of the FE model have been obtained from normal mode analysis using finite element analysis (FEA) software, MSC. Nastran/Patran. The precision of numerical predicted result from FEA is compared with its measured counterpart. The measured test data obtained through experimental modal analysis (EMA) using impact hammer and roving accelerometers under free-free boundary conditions. Under correlation process, CBAR element connector was chosen to model the welded joint due to its accurate prediction of natural frequency and contains updating parameters. FE model updating process was performed to improve the correlation between EMA and FEA. Ahead of updating process, sensitivity analysis was done to select the most sensitive updating parameter. As a result, total percentage error of natural frequency for updated CBAR model is reduced significantly from 8.74 % to 3.45 %. Consequently, CBAR element connector was chosen as the most reliable joint element in FE model to represent welded joint on exhaust structure.
format Conference or Workshop Item
author M. S. M., Sani
M. S. M., Fouzi
Yusrizal, Muchlis
author_facet M. S. M., Sani
M. S. M., Fouzi
Yusrizal, Muchlis
author_sort M. S. M., Sani
title Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure
title_short Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure
title_full Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure
title_fullStr Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure
title_full_unstemmed Finite Element Modelling and updating of welded joint for dynamic study of exhaust structure
title_sort finite element modelling and updating of welded joint for dynamic study of exhaust structure
publisher IOP Publishing Ltd
publishDate 2019
url http://umpir.ump.edu.my/id/eprint/24347/
http://umpir.ump.edu.my/id/eprint/24347/
http://umpir.ump.edu.my/id/eprint/24347/1/69.%20Finite%20element%20%28FE%29%20modelling%20and%20updating%20of%20welded.pdf
http://umpir.ump.edu.my/id/eprint/24347/2/69.1%20Finite%20element%20%28FE%29%20modelling%20and%20updating%20of%20welded.pdf
first_indexed 2023-09-18T22:36:47Z
last_indexed 2023-09-18T22:36:47Z
_version_ 1777416648621293568

Similar Items