Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases
Previous impact force identification has focused on collocated cases because noncollocated cases tend to be ill-posed. Considering the impact location is inaccessible, impact force identification using remote responses away from the impact location must be developed. This study initiates an effort t...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Faculty Mechanical Engineering, UMP
2014
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/6718/1/fkm-2014-Abdul_Rahman-Impact_Force_Identification.pdf |
| _version_ | 1825821820415115264 |
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| author | Abdul Ghaffar, Abdul Rahman Khoo, Shin Yee Zubaidah, Ismail Kong, Keen Kuan Ong , Zhi Chao Chong, Wen Tong Siamak, Noroozi |
| author_facet | Abdul Ghaffar, Abdul Rahman Khoo, Shin Yee Zubaidah, Ismail Kong, Keen Kuan Ong , Zhi Chao Chong, Wen Tong Siamak, Noroozi |
| author_sort | Abdul Ghaffar, Abdul Rahman |
| collection | UMP |
| description | Previous impact force identification has focused on collocated cases because noncollocated cases tend to be ill-posed. Considering the impact location is inaccessible, impact force identification using remote responses away from the impact location must be developed. This study initiates an effort to examine impact force identification for non-collocated case. A methodology utilizing operating deflection shape analysis, modal analysis and the modal transformation method (MTM) is presented to identify the unknown dynamic force. The performance of this approach is examined via experimental verification. The objective of this study is to examine the effectiveness of impact force identification by using MTM for both collocated and non-collocated cases. By measuring the response and frequency response function of the test rig, the time history of the unknown force is recovered by the force identification method where the impact location is known. The proposed method is examined at Points 1 and 15, which have satisfactory and poor curve fitting results respectively. It is found that force accuracy improves when the curve fitting result is enhanced. Experimental results show that impact force identification via MTM is applicable in both collocated and noncollocated cases, only if the curve fitting results satisfactory. |
| first_indexed | 2024-03-06T11:47:18Z |
| format | Article |
| id | UMPir6718 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T11:47:18Z |
| publishDate | 2014 |
| publisher | Faculty Mechanical Engineering, UMP |
| record_format | dspace |
| spelling | UMPir67182016-01-07T00:27:56Z http://umpir.ump.edu.my/id/eprint/6718/ Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases Abdul Ghaffar, Abdul Rahman Khoo, Shin Yee Zubaidah, Ismail Kong, Keen Kuan Ong , Zhi Chao Chong, Wen Tong Siamak, Noroozi TJ Mechanical engineering and machinery Previous impact force identification has focused on collocated cases because noncollocated cases tend to be ill-posed. Considering the impact location is inaccessible, impact force identification using remote responses away from the impact location must be developed. This study initiates an effort to examine impact force identification for non-collocated case. A methodology utilizing operating deflection shape analysis, modal analysis and the modal transformation method (MTM) is presented to identify the unknown dynamic force. The performance of this approach is examined via experimental verification. The objective of this study is to examine the effectiveness of impact force identification by using MTM for both collocated and non-collocated cases. By measuring the response and frequency response function of the test rig, the time history of the unknown force is recovered by the force identification method where the impact location is known. The proposed method is examined at Points 1 and 15, which have satisfactory and poor curve fitting results respectively. It is found that force accuracy improves when the curve fitting result is enhanced. Experimental results show that impact force identification via MTM is applicable in both collocated and noncollocated cases, only if the curve fitting results satisfactory. Faculty Mechanical Engineering, UMP 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6718/1/fkm-2014-Abdul_Rahman-Impact_Force_Identification.pdf Abdul Ghaffar, Abdul Rahman and Khoo, Shin Yee and Zubaidah, Ismail and Kong, Keen Kuan and Ong , Zhi Chao and Chong, Wen Tong and Siamak, Noroozi (2014) Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases. Journal of Mechanical Engineering and Sciences (JMES) , 6. pp. 968-974. ISSN 2289-4659 (print); 2231-8380 (online). (Published) http://dx.doi.org/10.15282/jmes.6.2014.23.0093 DOI: 10.15282/jmes.6.2014.23.0093 |
| spellingShingle | TJ Mechanical engineering and machinery Abdul Ghaffar, Abdul Rahman Khoo, Shin Yee Zubaidah, Ismail Kong, Keen Kuan Ong , Zhi Chao Chong, Wen Tong Siamak, Noroozi Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases |
| title | Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases |
| title_full | Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases |
| title_fullStr | Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases |
| title_full_unstemmed | Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases |
| title_short | Impact Force Identification using the Modal Transformation Method in Collocated and Non-Collocated Cases |
| title_sort | impact force identification using the modal transformation method in collocated and non collocated cases |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/6718/1/fkm-2014-Abdul_Rahman-Impact_Force_Identification.pdf |
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