台风下输电塔风振响应有限元分析及测试试验  

Real-time online monitoring and evaluation of wind-induced vibration response of transmission tower in typhoon environment

作　　者：吴新桥 彭康[2] 耿力[2] 黄增浩 张陵[2] 

机构地区：[1]南方电网科学研究院有限责任公司,广州510080 [2]西安交通大学机械结构强度与振动国家重点实验室,西安710049

出　　处：《应用力学学报》2018年第2期328-332,共5页Chinese Journal of Applied Mechanics

摘　　要：输电线路塔线体系具有杆塔高、跨距大、柔性强等特点。对极端天气环境激励比较敏感。本文利用自主开发的新型加速度传感器节点,主要对2016年4号台风"妮妲"下的能盘线输电塔进行了实时在线监测。获取了全尺寸输电塔在台风环境下的加速度响应的实测数据,并对数据进行了初步分析。确定了恶劣环境下真型输电塔的试验方法及其可行性。此外,还对比了不同风环境对输电塔振动响应的影响。这对于开展输电塔健康状态监测、安全评估具有一定的参考价值。Transmission line tower line system possesses the characters of high tower, large span, flexible and so on. It is sensitive to extreme weather conditions. In this paper, a new acceleration sensor node for real-time on-line vibration monitoring of transmission tower is designed and used. On-line monitoring of the transmission tower under Typhoon Nida in 2016 is carried out. The measured data of the acceleration response of the full-scale transmission tower in the typhoon environment are obtained, and the data are analyzed preliminarily. The test method and feasibility of the true type transmission tower in harsh environment are determined. In addition, the influence of different wind environments on the vibration response of transmission tower is compared. This has a certain reference value for carrying out transmission tower health status monitoring and safety assessment.

关 键 词：输电塔线体系 真型塔 试验 台风环境 风振响应 

分 类 号：TM75[电气工程—电力系统及自动化]