Force Appropriation Method for Two Degrees of Freedom Nonlinear System
In this paper, the vibrations of structures are investigated via force appropriation method in which modes are excited individually by forces. Multivariate mode indicator function (MMIF) is used in the modal testing for investigating the prospective nonlinearities in the structures. The method is ap...
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| Format: | Article |
| Language: | English English |
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Penerbit Universiti Teknologi Malaysia
2015
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| Online Access: | http://umpir.ump.edu.my/id/eprint/11151/1/Force%20Appropriation%20Method%20for%20Two%20Degrees%20of%20Freedom%20Nonlinear%20System.pdf http://umpir.ump.edu.my/id/eprint/11151/7/Force%20Appropriation%20Method%20for%20Two%20Degrees%20of%20Freedom%20Nonlinear%20System.pdf |
| _version_ | 1825822590418026496 |
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| author | M. S. M., Sani Muhamad Norhisham, Abdul Rani Mohd Azmi, Yunus Ahmad Azlan, Mat Isa Liyana, Roslan |
| author_facet | M. S. M., Sani Muhamad Norhisham, Abdul Rani Mohd Azmi, Yunus Ahmad Azlan, Mat Isa Liyana, Roslan |
| author_sort | M. S. M., Sani |
| collection | UMP |
| description | In this paper, the vibrations of structures are investigated via force appropriation method in which modes are excited individually by forces. Multivariate mode indicator function (MMIF) is used in the modal testing for investigating the prospective nonlinearities in the structures. The method is applied to simulate two degree of freedom with simple nonlinearities. The results are presented and evaluated to indicate that the method has advantages when it comes to involving in mode by mode identification. Results calculated from modal assurance criteria (MAC) and modal purity indicator (MPI) show that the qualities of evaluating a pure normal mode are in satisfactory. This suggests that force appropriation method for nonlinear structures is reliable and efficient, particularly in terms of the isolation of individual modes and determination of high quality modal parameters. |
| first_indexed | 2024-03-06T11:58:52Z |
| format | Article |
| id | UMPir11151 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-03-06T11:58:52Z |
| publishDate | 2015 |
| publisher | Penerbit Universiti Teknologi Malaysia |
| record_format | dspace |
| spelling | UMPir111512018-01-22T08:03:47Z http://umpir.ump.edu.my/id/eprint/11151/ Force Appropriation Method for Two Degrees of Freedom Nonlinear System M. S. M., Sani Muhamad Norhisham, Abdul Rani Mohd Azmi, Yunus Ahmad Azlan, Mat Isa Liyana, Roslan TJ Mechanical engineering and machinery In this paper, the vibrations of structures are investigated via force appropriation method in which modes are excited individually by forces. Multivariate mode indicator function (MMIF) is used in the modal testing for investigating the prospective nonlinearities in the structures. The method is applied to simulate two degree of freedom with simple nonlinearities. The results are presented and evaluated to indicate that the method has advantages when it comes to involving in mode by mode identification. Results calculated from modal assurance criteria (MAC) and modal purity indicator (MPI) show that the qualities of evaluating a pure normal mode are in satisfactory. This suggests that force appropriation method for nonlinear structures is reliable and efficient, particularly in terms of the isolation of individual modes and determination of high quality modal parameters. Penerbit Universiti Teknologi Malaysia 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11151/1/Force%20Appropriation%20Method%20for%20Two%20Degrees%20of%20Freedom%20Nonlinear%20System.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/11151/7/Force%20Appropriation%20Method%20for%20Two%20Degrees%20of%20Freedom%20Nonlinear%20System.pdf M. S. M., Sani and Muhamad Norhisham, Abdul Rani and Mohd Azmi, Yunus and Ahmad Azlan, Mat Isa and Liyana, Roslan (2015) Force Appropriation Method for Two Degrees of Freedom Nonlinear System. Jurnal Teknologi (Sciences and Engineering), 76 (8). pp. 5-9. ISSN 0127-9696 (print); 2180-3722 (online). (Published) http://www.jurnalteknologi.utm.my/index.php/jurnalteknologi/article/view/5614 DOI: 10.11113/jt.v76.5614 |
| spellingShingle | TJ Mechanical engineering and machinery M. S. M., Sani Muhamad Norhisham, Abdul Rani Mohd Azmi, Yunus Ahmad Azlan, Mat Isa Liyana, Roslan Force Appropriation Method for Two Degrees of Freedom Nonlinear System |
| title | Force Appropriation Method for Two Degrees of Freedom Nonlinear System |
| title_full | Force Appropriation Method for Two Degrees of Freedom Nonlinear System |
| title_fullStr | Force Appropriation Method for Two Degrees of Freedom Nonlinear System |
| title_full_unstemmed | Force Appropriation Method for Two Degrees of Freedom Nonlinear System |
| title_short | Force Appropriation Method for Two Degrees of Freedom Nonlinear System |
| title_sort | force appropriation method for two degrees of freedom nonlinear system |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/11151/1/Force%20Appropriation%20Method%20for%20Two%20Degrees%20of%20Freedom%20Nonlinear%20System.pdf http://umpir.ump.edu.my/id/eprint/11151/7/Force%20Appropriation%20Method%20for%20Two%20Degrees%20of%20Freedom%20Nonlinear%20System.pdf |
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