Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards
This paper presents an experimental investigation of stayed cable vibrations in dry-wind and rain-wind coupling hazards. To mitigate large vibrations of the cable, the use of spiral wires wrapped around the cable is proposed. By testing two cable models in a wind tunnel in dry and rain conditions fo...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/5845712 |
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| _version_ | 1832556342240346112 |
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| author | Hung Vo-Duy Cung H. Nguyen |
| author_facet | Hung Vo-Duy Cung H. Nguyen |
| author_sort | Hung Vo-Duy |
| collection | DOAJ |
| description | This paper presents an experimental investigation of stayed cable vibrations in dry-wind and rain-wind coupling hazards. To mitigate large vibrations of the cable, the use of spiral wires wrapped around the cable is proposed. By testing two cable models in a wind tunnel in dry and rain conditions for different yaw angles and wind speeds, the effectiveness of using the spiral wires to mitigate large vibrations is clarified. Finally, the paper provides a further understanding of the complex mechanism of wind-induced and rain-wind-induced vibrations. It is found that the low-frequency vortex flows in the wake play a significant role in the excitation of large responses of the cable in high wind speeds. The spiral wires dismiss these low-frequency flows and then reduce the large vibrations. |
| format | Article |
| id | doaj-art-76e1e16e115f466fa368efe1552c1b44 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-76e1e16e115f466fa368efe1552c1b442025-02-03T05:45:45ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/58457125845712Mitigating Large Vibrations of Stayed Cables in Wind and Rain HazardsHung Vo-Duy0Cung H. Nguyen1The University of Da Nang-University of Science and Technology, Da Nang, VietnamDepartment of Civil Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700 000, VietnamThis paper presents an experimental investigation of stayed cable vibrations in dry-wind and rain-wind coupling hazards. To mitigate large vibrations of the cable, the use of spiral wires wrapped around the cable is proposed. By testing two cable models in a wind tunnel in dry and rain conditions for different yaw angles and wind speeds, the effectiveness of using the spiral wires to mitigate large vibrations is clarified. Finally, the paper provides a further understanding of the complex mechanism of wind-induced and rain-wind-induced vibrations. It is found that the low-frequency vortex flows in the wake play a significant role in the excitation of large responses of the cable in high wind speeds. The spiral wires dismiss these low-frequency flows and then reduce the large vibrations.http://dx.doi.org/10.1155/2020/5845712 |
| spellingShingle | Hung Vo-Duy Cung H. Nguyen Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards Shock and Vibration |
| title | Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards |
| title_full | Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards |
| title_fullStr | Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards |
| title_full_unstemmed | Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards |
| title_short | Mitigating Large Vibrations of Stayed Cables in Wind and Rain Hazards |
| title_sort | mitigating large vibrations of stayed cables in wind and rain hazards |
| url | http://dx.doi.org/10.1155/2020/5845712 |
| work_keys_str_mv | AT hungvoduy mitigatinglargevibrationsofstayedcablesinwindandrainhazards AT cunghnguyen mitigatinglargevibrationsofstayedcablesinwindandrainhazards |