Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion
To reduce the damage of earth penetrators on underground fortifications against blast and fragmentation penetration, a model of underground arch structure with elastic support was established for a modal analysis on the structure subject to penetration and explosion with ANSYS/LS-DYNA software for d...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/9707479 |
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| author | Yingjie Yuan Huixiang Sun Zhuo Chen Erlei Bai Huiying Sun |
| author_facet | Yingjie Yuan Huixiang Sun Zhuo Chen Erlei Bai Huiying Sun |
| author_sort | Yingjie Yuan |
| collection | DOAJ |
| description | To reduce the damage of earth penetrators on underground fortifications against blast and fragmentation penetration, a model of underground arch structure with elastic support was established for a modal analysis on the structure subject to penetration and explosion with ANSYS/LS-DYNA software for dynamic analysis. In the process, the effect of spring stiffness coefficient on the dynamic response of the structure was analyzed in terms of pressure, equivalent stress, and peak vertical displacement. The simulation results showed that the elastic support reduced the dynamic response of the structure, while the equivalent stress and pressure of each part of the underground arch structure were reduced, and the peak vertical displacement was increased as the stiffness coefficient of the elastic support was lowered, and the isolation efficiency of equivalent stress and pressure at the arch shoulder was lower than that at other parts. Therefore, reducing the stiffness coefficient of the elastic support alone cannot meet the need for vibration isolation of the arch shoulder, and the type or stiffness coefficient of elastic support should be selected reasonably according to the actual engineering requirements, so as to achieve a good vibration isolation effect. |
| format | Article |
| id | doaj-art-e13c3beca8fd4c7a9f9327a9ec582ed2 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-e13c3beca8fd4c7a9f9327a9ec582ed22025-08-20T03:25:59ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/9707479Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and ExplosionYingjie Yuan0Huixiang Sun1Zhuo Chen2Erlei Bai3Huiying Sun4Aviation Engineering SchoolAviation Engineering SchoolAviation Engineering SchoolAviation Engineering SchoolAviation Engineering SchoolTo reduce the damage of earth penetrators on underground fortifications against blast and fragmentation penetration, a model of underground arch structure with elastic support was established for a modal analysis on the structure subject to penetration and explosion with ANSYS/LS-DYNA software for dynamic analysis. In the process, the effect of spring stiffness coefficient on the dynamic response of the structure was analyzed in terms of pressure, equivalent stress, and peak vertical displacement. The simulation results showed that the elastic support reduced the dynamic response of the structure, while the equivalent stress and pressure of each part of the underground arch structure were reduced, and the peak vertical displacement was increased as the stiffness coefficient of the elastic support was lowered, and the isolation efficiency of equivalent stress and pressure at the arch shoulder was lower than that at other parts. Therefore, reducing the stiffness coefficient of the elastic support alone cannot meet the need for vibration isolation of the arch shoulder, and the type or stiffness coefficient of elastic support should be selected reasonably according to the actual engineering requirements, so as to achieve a good vibration isolation effect.http://dx.doi.org/10.1155/2022/9707479 |
| spellingShingle | Yingjie Yuan Huixiang Sun Zhuo Chen Erlei Bai Huiying Sun Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion Advances in Civil Engineering |
| title | Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion |
| title_full | Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion |
| title_fullStr | Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion |
| title_full_unstemmed | Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion |
| title_short | Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion |
| title_sort | numerical simulation of damping performance of elastically supported underground arch structures subject to penetration and explosion |
| url | http://dx.doi.org/10.1155/2022/9707479 |
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