A Structural Pounding Formulation Using Systematic Modal Truncation
The evaluation of the response function of the structural pounding problem is generally time-consuming if high-order systems are applied. The well-known modal truncation strategy is outstandingly efficient for a single linear ground-accelerated structure. However, for the analysis of the structural...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/6378085 |
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| _version_ | 1832561980038184960 |
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| author | Jianye Shi Franz Bamer Bernd Markert |
| author_facet | Jianye Shi Franz Bamer Bernd Markert |
| author_sort | Jianye Shi |
| collection | DOAJ |
| description | The evaluation of the response function of the structural pounding problem is generally time-consuming if high-order systems are applied. The well-known modal truncation strategy is outstandingly efficient for a single linear ground-accelerated structure. However, for the analysis of the structural pounding problem, the classical modal truncation technique turns out to be ineffective as additional higher frequency motion due to possible contact impact occurs. This makes the determination of how many modes should be taken into account in order to obtain a required level of accuracy more difficult. Therefore, in this paper, a systematically controlled modal truncation strategy adapted to the seismic pounding formulation under consideration of high nonlinearity and nonsmoothness of contact problems is introduced. A comparative study of the classical and the controlled modal truncation technique is presented and a comparison with the commercial software package ABAQUS© is provided. It is shown that the computational accuracy is significantly improved when applying the new systematically controlled modal truncation strategy. |
| format | Article |
| id | doaj-art-69b7803b14c94844aac2adbd2ff13842 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-69b7803b14c94844aac2adbd2ff138422025-02-03T01:23:43ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/63780856378085A Structural Pounding Formulation Using Systematic Modal TruncationJianye Shi0Franz Bamer1Bernd Markert2Institute of General Mechanics, RWTH Aachen University, Templergraben 64, 52062 Aachen, GermanyInstitute of General Mechanics, RWTH Aachen University, Templergraben 64, 52062 Aachen, GermanyInstitute of General Mechanics, RWTH Aachen University, Templergraben 64, 52062 Aachen, GermanyThe evaluation of the response function of the structural pounding problem is generally time-consuming if high-order systems are applied. The well-known modal truncation strategy is outstandingly efficient for a single linear ground-accelerated structure. However, for the analysis of the structural pounding problem, the classical modal truncation technique turns out to be ineffective as additional higher frequency motion due to possible contact impact occurs. This makes the determination of how many modes should be taken into account in order to obtain a required level of accuracy more difficult. Therefore, in this paper, a systematically controlled modal truncation strategy adapted to the seismic pounding formulation under consideration of high nonlinearity and nonsmoothness of contact problems is introduced. A comparative study of the classical and the controlled modal truncation technique is presented and a comparison with the commercial software package ABAQUS© is provided. It is shown that the computational accuracy is significantly improved when applying the new systematically controlled modal truncation strategy.http://dx.doi.org/10.1155/2018/6378085 |
| spellingShingle | Jianye Shi Franz Bamer Bernd Markert A Structural Pounding Formulation Using Systematic Modal Truncation Shock and Vibration |
| title | A Structural Pounding Formulation Using Systematic Modal Truncation |
| title_full | A Structural Pounding Formulation Using Systematic Modal Truncation |
| title_fullStr | A Structural Pounding Formulation Using Systematic Modal Truncation |
| title_full_unstemmed | A Structural Pounding Formulation Using Systematic Modal Truncation |
| title_short | A Structural Pounding Formulation Using Systematic Modal Truncation |
| title_sort | structural pounding formulation using systematic modal truncation |
| url | http://dx.doi.org/10.1155/2018/6378085 |
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