Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads
A parametric study of tuned mass dampers for a long span transmission tower-line system under wind loads is done in this paper. A three-dimensional finite element model of transmission tower-line system is established by SAP2000 software to numerically verify the effectiveness of the tuned mass damp...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/4965056 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561979820081152 |
|---|---|
| author | Li Tian Yujie Zeng |
| author_facet | Li Tian Yujie Zeng |
| author_sort | Li Tian |
| collection | DOAJ |
| description | A parametric study of tuned mass dampers for a long span transmission tower-line system under wind loads is done in this paper. A three-dimensional finite element model of transmission tower-line system is established by SAP2000 software to numerically verify the effectiveness of the tuned mass damper device. The wind load time history is simulated based on Kaimal spectrum by the harmony superposition method. The equations of motion of a system with tuned mass damper under wind load excitation are proposed, and the schematic of tuned mass damper is introduced. The effects of mass ratio, frequency ratio, damping ratio, the change of the sag of transmission line, and the robustness of TMD are investigated, respectively. Results show that (1) the change of mass ratio has a greater effect on the vibration reduction ratio than those of frequency ratio and damping ratio, and the best vibration reduction ratio of TMD is not the frequency ratio of 1; (2) the sag-span ratio has an insignificant effect on the vibration reduction ratio of transmission tower when the change of sag-span ratio is not large; and (3) the effect of ice should be considered when the robustness study of TMD is carried out. |
| format | Article |
| id | doaj-art-6880aabb29104790a09b1071f8dfbcee |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-6880aabb29104790a09b1071f8dfbcee2025-02-03T01:23:41ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/49650564965056Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind LoadsLi Tian0Yujie Zeng1School of Civil Engineering, Shandong University, Jinan, ChinaSchool of Civil Engineering, Shandong University, Jinan, ChinaA parametric study of tuned mass dampers for a long span transmission tower-line system under wind loads is done in this paper. A three-dimensional finite element model of transmission tower-line system is established by SAP2000 software to numerically verify the effectiveness of the tuned mass damper device. The wind load time history is simulated based on Kaimal spectrum by the harmony superposition method. The equations of motion of a system with tuned mass damper under wind load excitation are proposed, and the schematic of tuned mass damper is introduced. The effects of mass ratio, frequency ratio, damping ratio, the change of the sag of transmission line, and the robustness of TMD are investigated, respectively. Results show that (1) the change of mass ratio has a greater effect on the vibration reduction ratio than those of frequency ratio and damping ratio, and the best vibration reduction ratio of TMD is not the frequency ratio of 1; (2) the sag-span ratio has an insignificant effect on the vibration reduction ratio of transmission tower when the change of sag-span ratio is not large; and (3) the effect of ice should be considered when the robustness study of TMD is carried out.http://dx.doi.org/10.1155/2016/4965056 |
| spellingShingle | Li Tian Yujie Zeng Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads Shock and Vibration |
| title | Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads |
| title_full | Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads |
| title_fullStr | Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads |
| title_full_unstemmed | Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads |
| title_short | Parametric Study of Tuned Mass Dampers for Long Span Transmission Tower-Line System under Wind Loads |
| title_sort | parametric study of tuned mass dampers for long span transmission tower line system under wind loads |
| url | http://dx.doi.org/10.1155/2016/4965056 |
| work_keys_str_mv | AT litian parametricstudyoftunedmassdampersforlongspantransmissiontowerlinesystemunderwindloads AT yujiezeng parametricstudyoftunedmassdampersforlongspantransmissiontowerlinesystemunderwindloads |