Anti-Wind Experiments and Damage Prediction of Transmission Tower under Typhoon Conditions in Coastal Areas
Abstract
:1. Introduction
2. Simulation Model
2.1. Real-Time Wind Field Mathematical Model
2.2. Tower-Line Coupled Calculation Model
3. Simulation Results and Analysis
3.1. Real-Time Wind Field Distribution
3.2. Mechanical Vibration
3.3. Damage Prediction
4. Anti-Wind Experiments
4.1. Scale Model and Similarity Criterion
4.2. Anti-Wind Experimental Method and Device
4.3. Experimental Results and Analysis
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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Items | Value/Type | Items | Value/Type |
---|---|---|---|
Voltage level | 220 kV | Tower full height | 48.9 m |
Tower | SZ631-33 | Cross-arm height | 33 m |
Tower main bar | Q345 | Root width | 8.9 m |
Tower auxiliary bar | Q235 | Tower simulation element | Beam188 |
Line conductor | LGJ-300/25 | Line simulation element | Link180 |
Grounding line | GJ-50 | Span between towers | 300 m |
Tower pattern | Straight | Calculation type | Transient analysis |
Line pattern | Suspended loop line |
Items | Value | Items | Value | Items | Value |
---|---|---|---|---|---|
Time | 6:00, 4 October 2015 | Maximum wind speed | 46.8 m/s | Longitude | E110.45 |
Pressure | 94.2 kPa | Cyclonic radius | 224.1 km | Latitude | N21.22 |
Steady Wind | Transient Wind | |||
---|---|---|---|---|
Speed | Direction Angle | Speed m/s | Direction Angle | Turbulence |
7 m/s | 0° | 8 m/s | 0° | 0.05 |
8 m/s | 30° | 30° | 0.14 | |
10 m/s | 45° | 45° | / | |
12 m/s | 60° | 60° | / | |
15 m/s | 90° | 90° | / |
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Guan, R.; Xiang, C.; Jia, Z. Anti-Wind Experiments and Damage Prediction of Transmission Tower under Typhoon Conditions in Coastal Areas. Energies 2022, 15, 3372. https://doi.org/10.3390/en15093372
Guan R, Xiang C, Jia Z. Anti-Wind Experiments and Damage Prediction of Transmission Tower under Typhoon Conditions in Coastal Areas. Energies. 2022; 15(9):3372. https://doi.org/10.3390/en15093372
Chicago/Turabian StyleGuan, Ruiyang, Chuyuan Xiang, and Zhidong Jia. 2022. "Anti-Wind Experiments and Damage Prediction of Transmission Tower under Typhoon Conditions in Coastal Areas" Energies 15, no. 9: 3372. https://doi.org/10.3390/en15093372