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形状记忆合金阻尼器对风致输电塔线系统的振动控制

Vibration Control of a Wind-Excited Transmission Tower-Line System by Shape Memory Alloy Dampers.

作者信息

Chen Bo, Song Xinxin, Li Wenbin, Wu Jingbo

机构信息

Key Laboratory of Roadway Bridge and Structural Engineering, Wuhan University of Technology, Wuhan 430070, China.

Guangdong Power Grid Energy Development, Co., Ltd., Guangzhou 510160, China.

出版信息

Materials (Basel). 2022 Feb 27;15(5):1790. doi: 10.3390/ma15051790.

DOI:10.3390/ma15051790
PMID:35269022
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8911841/
Abstract

To be typical electrical power infrastructures, high-rise tower-line systems are widely constructed for power transmission. These flexible tower structures commonly possess small damping and may suffer strong vibrations during external excitations. The control approaches based on various devices have been developed to protect transmission towers against strong vibrations, damages, and even failure. However, studies on the vibrant control of wind-excited tower-line systems equipped with SMA dampers have not yet been reported. To this end, the control approach for wind-excited tower-line systems using SMA dampers is conducted. The mechanical model of the tower-line system is established using Lagrange's equations by considering the dynamic interaction between transmission lines and towers. The vibration control method using SMA dampers for the tower-line coupled system is proposed. The control efficacy is verified in both the time domain and the frequency domain. Detailed parametric studies are conducted to examine the effects of physical parameters of SMA dampers on structural responses and hysteresis loops. In addition, the structural energy responses are computed to examine the control performance.

摘要

作为典型的电力基础设施，高层塔线系统被广泛用于电力传输建设。这些柔性塔结构通常阻尼较小，在外部激励下可能会遭受强烈振动。基于各种装置的控制方法已被开发出来，以保护输电塔免受强烈振动、损坏甚至失效。然而，关于配备形状记忆合金（SMA）阻尼器的风致塔线系统的振动控制研究尚未见报道。为此，开展了使用SMA阻尼器的风致塔线系统控制方法研究。通过考虑输电线路与塔之间的动态相互作用，利用拉格朗日方程建立了塔线系统的力学模型。提出了用于塔线耦合系统的SMA阻尼器振动控制方法。在时域和频域中验证了控制效果。进行了详细的参数研究，以考察SMA阻尼器物理参数对结构响应和滞回环的影响。此外，计算了结构能量响应以考察控制性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/099c756e8d50/materials-15-01790-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/099c756e8d50/materials-15-01790-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/55a424541226/materials-15-01790-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/4871cc54f8d3/materials-15-01790-g003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/a74066b2e970/materials-15-01790-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/c829639c1d07/materials-15-01790-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/3fa9a5e14475/materials-15-01790-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/576b0e1f0461/materials-15-01790-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/b8e1bbf22300/materials-15-01790-g009a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/13312cc56eab/materials-15-01790-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/29f5449cc23d/materials-15-01790-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/21d66e68fd0f/materials-15-01790-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/f4b555124e94/materials-15-01790-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b01e/8911841/099c756e8d50/materials-15-01790-g014.jpg

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