Vibration Characteristics Test and Vibration Reduction Analysis of 220kV Cable Lines on Bridge
| Autor: | Guang-hua He, Wen-jie Li, Zhen-peng Zhang, Jian-kang Zhao, Ji Liu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Vibration control Resonance Structural engineering law.invention Vibration Amplitude Natural rubber law visual_art Physics::Atomic and Molecular Clusters visual_art.visual_art_medium Bridge (instrument) Physics::Chemical Physics Reduction (mathematics) business Stress concentration |
| Zdroj: | DEStech Transactions on Environment, Energy and Earth Sciences. |
| ISSN: | 2475-8833 |
| DOI: | 10.12783/dteees/icpeee2018/23301 |
| Popis: | More and more high-voltage cable lines are laying on the bridge and in other vibration environments. The impact of vibration on the safe operation of cable lines is increasingly prominent. Therefore, it is necessary to study the vibration characteristics of the cable lines, the layout structure and the influencing factors of the vibration control measures on the bridge. Through the actual test, this paper obtained the vibration characteristics of cable line especially the vibration characteristics caused by the nearby the high-speed railway. The simulation of the cable support spacing and the rubber pad thickness of resonant frequency of cable structure were calculated. The results show that when the cable laid on the bridge. It suffered the continuing vibration caused by the role of external. The amplitude of vibration is relatively larger between 10-50 Hz regions. Because of close to high-speed rail line, the vibration on the cable line is particularly larger. The spacing of cable supports should be determined by the actual measurement of vibration frequency characteristics and calculating, to avoid the resonance and stress concentration. With the increase of rubber pad thickness, it is much more obvious to reduce the vibration effect, so it should be combined with vibration to determine the size of the rubber pad thickness. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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