工程科学学报2017，Vol.39Issue(10)：1598-1605,8.DOI:10.13374/j.issn2095-9389.2017.10.020;
运转工况下风电塔抗震分析
Seismic analyses of wind turbine tower under operational conditions
摘要
Abstract
In order to study seismic responses and collapse mode of a wind turbine tower under operational conditions, a wind tur-bine tower model was developed by the wind turbine design software FAST. The structural responses in idle condition and operational conditions were calculated and compared. The influences of different angles between wind and earthquake inputs on structural respon-ses were investigated. A detailed finite element model of the same tower was developed with ABAQUS. Wind load effects induced by the blades were calculated by FAST simulations and were verified with the results estimated through the blade element theory. Elastic analysis results from the FAST model and the ABAQUS model were also compared for verification purposes. Tower collapse simulations were conducted under earthquake excitations using the ABAQUS model. Study results show that the case with a 90° angle between the wind and earthquake inputs is the most dangerous scenario that could occur for tower dynamic responses. Collapse simulations indicate that the plastic hinges are initiated from the bottom part of the tubular tower wall; later, they develop into the upper part of the struc-ture too. The tower fails at the middle-upper part of the tower wall.关键词
风电塔/风震组合/抗震分析/运转工况/倒塔模拟Key words
wind turbine tower/wind-earthquake combination/seismic analysis/operational condition/collapse simulation分类
建筑与水利引用本文复制引用
戴靠山,赵志,易正翔,盛超..运转工况下风电塔抗震分析[J].工程科学学报,2017,39(10):1598-1605,8.基金项目
国家自然科学基金资助项目(51208382) （51208382）
上海市国际科技合作基金资助项目(16510711300) （16510711300）
能源工程安全与灾害力学教育部重点实验室开放基金资助项目(EES201603) （EES201603）
