Optimization of VEDs for Vibration Control of Transmission Line Tower
This paper investigates the optimization of viscoelastic dampers (VEDs) for vibration control of a transmission line tower. Considering the stiffness of the steel brace connected to a VED, the mechanical model of the VED-brace system was established. Subsequently, the additional modal damping ratio...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9060414 |
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| _version_ | 1832561593908461568 |
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| author | Guoping Huang Jianhua Hu Yuzhu He Haibo Liu Xiugui Sun |
| author_facet | Guoping Huang Jianhua Hu Yuzhu He Haibo Liu Xiugui Sun |
| author_sort | Guoping Huang |
| collection | DOAJ |
| description | This paper investigates the optimization of viscoelastic dampers (VEDs) for vibration control of a transmission line tower. Considering the stiffness of the steel brace connected to a VED, the mechanical model of the VED-brace system was established. Subsequently, the additional modal damping ratio of the transmission line tower attached with VEDs was obtained analytically. Furthermore, the finite element model of a two-circuit transmission line tower with VEDs was built in ANSYS software, and the influences of installation positions and parameters of VEDs on the additional modal damping ratio were clarified. In addition, the control performance of VEDs on the transmission line tower subjected to wind excitations was emphatically illustrated. The results show that the stiffness of the steel brace connected to a VED has a significant effect on the maximum additional modal damping ratio of the VED-brace system provided for the transmission line tower and the optimal parameters of the VED. Meanwhile, the installation positions of VEDs dramatically influence the additional modal damping ratio. Moreover, the increase of the brace stiffness and the loss factor is beneficial to improve the control performance of VEDs. Besides that, the VEDs present superior control performance on the top displacement of the transmission line tower as well as the transverse bending vibration energy. |
| format | Article |
| id | doaj-art-cba3b77658274d04af415b0827dd1229 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-cba3b77658274d04af415b0827dd12292025-02-03T01:24:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/90604149060414Optimization of VEDs for Vibration Control of Transmission Line TowerGuoping Huang0Jianhua Hu1Yuzhu He2Haibo Liu3Xiugui Sun4College of Civil Engineering, Hunan City University, Yiyang 413000, ChinaHunan Communication & Water Conservancy Group Ltd., Changsha 410008, ChinaCollege of Civil Engineering, Hunan University, Changsha 410082, ChinaHunan Communication & Water Conservancy Group Ltd., Changsha 410008, ChinaHunan Provincial Communications Planning Survey & Design Istute Co, Ltd., Changsha 410200, ChinaThis paper investigates the optimization of viscoelastic dampers (VEDs) for vibration control of a transmission line tower. Considering the stiffness of the steel brace connected to a VED, the mechanical model of the VED-brace system was established. Subsequently, the additional modal damping ratio of the transmission line tower attached with VEDs was obtained analytically. Furthermore, the finite element model of a two-circuit transmission line tower with VEDs was built in ANSYS software, and the influences of installation positions and parameters of VEDs on the additional modal damping ratio were clarified. In addition, the control performance of VEDs on the transmission line tower subjected to wind excitations was emphatically illustrated. The results show that the stiffness of the steel brace connected to a VED has a significant effect on the maximum additional modal damping ratio of the VED-brace system provided for the transmission line tower and the optimal parameters of the VED. Meanwhile, the installation positions of VEDs dramatically influence the additional modal damping ratio. Moreover, the increase of the brace stiffness and the loss factor is beneficial to improve the control performance of VEDs. Besides that, the VEDs present superior control performance on the top displacement of the transmission line tower as well as the transverse bending vibration energy.http://dx.doi.org/10.1155/2021/9060414 |
| spellingShingle | Guoping Huang Jianhua Hu Yuzhu He Haibo Liu Xiugui Sun Optimization of VEDs for Vibration Control of Transmission Line Tower Advances in Civil Engineering |
| title | Optimization of VEDs for Vibration Control of Transmission Line Tower |
| title_full | Optimization of VEDs for Vibration Control of Transmission Line Tower |
| title_fullStr | Optimization of VEDs for Vibration Control of Transmission Line Tower |
| title_full_unstemmed | Optimization of VEDs for Vibration Control of Transmission Line Tower |
| title_short | Optimization of VEDs for Vibration Control of Transmission Line Tower |
| title_sort | optimization of veds for vibration control of transmission line tower |
| url | http://dx.doi.org/10.1155/2021/9060414 |
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