Analysis of Switched-Rigid Floating Oscillator
In explicit finite element simulations, a technique called deformable-to-rigid (D2R) switching is used routinely to reduce the computation time. Using the D2R option, the deformable parts in the model can be switched to rigid and reverted back to deformable when needed during the analysis. The time...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-2009-0474 |
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| _version_ | 1832547546490208256 |
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| author | Prabhakar R. Marur |
| author_facet | Prabhakar R. Marur |
| author_sort | Prabhakar R. Marur |
| collection | DOAJ |
| description | In explicit finite element simulations, a technique called deformable-to-rigid (D2R) switching is used routinely to reduce the computation time. Using the D2R option, the deformable parts in the model can be switched to rigid and reverted back to deformable when needed during the analysis. The time of activation of D2R however influences the overall dynamics of the system being analyzed. In this paper, a theoretical basis for the selection of time of rigid switching based on system energy is established. A floating oscillator problem is investigated for this purpose and closed-form analytical expressions are derived for different phases in rigid switching. The analytical expressions are validated by comparing the theoretical results with numerical computations. |
| format | Article |
| id | doaj-art-043e76f5a05a4c539aa0c702a524cceb |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-043e76f5a05a4c539aa0c702a524cceb2025-02-03T06:44:22ZengWileyShock and Vibration1070-96221875-92032009-01-0116435536410.3233/SAV-2009-0474Analysis of Switched-Rigid Floating OscillatorPrabhakar R. Marur0India Science Lab, General Motors R&D, Creator Building, ITP, Bangalore – 560 066, IndiaIn explicit finite element simulations, a technique called deformable-to-rigid (D2R) switching is used routinely to reduce the computation time. Using the D2R option, the deformable parts in the model can be switched to rigid and reverted back to deformable when needed during the analysis. The time of activation of D2R however influences the overall dynamics of the system being analyzed. In this paper, a theoretical basis for the selection of time of rigid switching based on system energy is established. A floating oscillator problem is investigated for this purpose and closed-form analytical expressions are derived for different phases in rigid switching. The analytical expressions are validated by comparing the theoretical results with numerical computations.http://dx.doi.org/10.3233/SAV-2009-0474 |
| spellingShingle | Prabhakar R. Marur Analysis of Switched-Rigid Floating Oscillator Shock and Vibration |
| title | Analysis of Switched-Rigid Floating Oscillator |
| title_full | Analysis of Switched-Rigid Floating Oscillator |
| title_fullStr | Analysis of Switched-Rigid Floating Oscillator |
| title_full_unstemmed | Analysis of Switched-Rigid Floating Oscillator |
| title_short | Analysis of Switched-Rigid Floating Oscillator |
| title_sort | analysis of switched rigid floating oscillator |
| url | http://dx.doi.org/10.3233/SAV-2009-0474 |
| work_keys_str_mv | AT prabhakarrmarur analysisofswitchedrigidfloatingoscillator |