Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated 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...

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Main Authors:	Abdul Ghaffar, Abdul Rahman, Khoo, Shin Yee, Zubaidah, Ismail, Kong, Keen Kuan, Ong, Zhi Chao, Chong, Wen Tong, Siamak, Noroozi
Format:	Article
Language:	English
Published:	Faculty Mechanical Engineering, UMP 2014
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/13745/ http://umpir.ump.edu.my/id/eprint/13745/ http://umpir.ump.edu.my/id/eprint/13745/ http://umpir.ump.edu.my/id/eprint/13745/1/Impact%20Force%20Identification%20Using%20The%20Modal%20Transformation%20Method%20In%20Collocated%20And%20Noncollocated%20Cases.pdf

id	ump-13745
recordtype	eprints
spelling	ump-137452016-07-26T02:00:06Z http://umpir.ump.edu.my/id/eprint/13745/ Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated 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 cc_by http://umpir.ump.edu.my/id/eprint/13745/1/Impact%20Force%20Identification%20Using%20The%20Modal%20Transformation%20Method%20In%20Collocated%20And%20Noncollocated%20Cases.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 Noncollocated Cases. Journal of Mechanical Engineering and Sciences (JMES) , 6. pp. 968-974. ISSN 2289-4659 (print); 2231-8380 (online) http://dx.doi.org/10.15282/jmes.6.2014.23.0093 DOI: 10.15282/jmes.6.2014.23.0093
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
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 Noncollocated Cases
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.
format	Article
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
title	Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated Cases
title_short	Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated Cases
title_full	Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated Cases
title_fullStr	Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated Cases
title_full_unstemmed	Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated Cases
title_sort	impact force identification using the modal transformation method in collocated and noncollocated cases
publisher	Faculty Mechanical Engineering, UMP
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/13745/ http://umpir.ump.edu.my/id/eprint/13745/ http://umpir.ump.edu.my/id/eprint/13745/ http://umpir.ump.edu.my/id/eprint/13745/1/Impact%20Force%20Identification%20Using%20The%20Modal%20Transformation%20Method%20In%20Collocated%20And%20Noncollocated%20Cases.pdf
first_indexed	2023-09-18T22:16:42Z
last_indexed	2023-09-18T22:16:42Z
_version_	1777415385128108032

Impact Force Identification Using the Modal Transformation Method in Collocated and Noncollocated Cases

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