|
|||||
|
|
| 大型风力机筒式塔架涡致振动的数值分析 | |
| 引用本文： | 李德源,刘胜祥,黄小华.大型风力机筒式塔架涡致振动的数值分析[J].太阳能学报,2008,29(11). |
| 作者姓名： | 李德源 刘胜祥 黄小华 |
| 作者单位： | 1. 广东工业大学机电工程学院,广州,510006 2. 广东工业大学建设学院,广州,510006 3. 广东工业大学实验教学部,广州,510006 |
| 基金项目： | 国家自然科学基金，广州市科技计划项目 |
| 摘 要： | 应用有限元数值分析方法分析了1.5MW变速变桨距风电机组圆筒型塔架在非定常气动力作用下的动力学响应.数值计算了塔架的动力特性,考察了风轮及机舱重量对塔架固有频率的影响;研究了作用在圆筒型塔架上的气动力特别是非定常气动力与雷诺数的关系;根据作用在塔架上的气动力,计算了塔顶处横向和顺风向在过临界和超临界条件下的动态位移.计算结果表明:非定常气动力是引起塔架振动的重要原因,研究塔架的动态问题比静态问题更重要.该文的工作也为风力机塔架振动分析和疲劳寿命分析等提供了实用的分析方法. |
| 关 键 词： | 塔架 非定常气动力 动力特性 动力响应 |
NUMERICAL ANALYSIS OF VORTEX-INDUCED VIBRATION OF THE LARGE SCALE WIND TURBINE CYLINDRICAL TOWER |
|
| Li Deyuan,Liu Shengxiang,Huang Xiaohua.NUMERICAL ANALYSIS OF VORTEX-INDUCED VIBRATION OF THE LARGE SCALE WIND TURBINE CYLINDRICAL TOWER[J].Acta Energiae Solaris Sinica,2008,29(11). | |
| Authors: | Li Deyuan Liu Shengxiang Huang Xiaohua |
| Affiliation: | Li Deyuan~1 Liu Shengxiang~2 Huang Xiaohua~.Faculty of Electromechanical Engineering,Guangdong University of Technology,Guangzhou 510006,China,2.Faculty of Construction,.Experiment Teaching Departmem |
| Abstract: | The dynamic response of the 1.5MW variable speed pitch regulated wind turbine cylindrical tower caused by unsteady aerodynamic loads was analyzed using the finite element analysis method.Dynamic characteristics of the tower was calculated numerically and the influence of the nacelle and rotor weight on the tower natural frequency was tested. The relationship between aerodynamic loads especially unsteady ones on the cylindrical tower and Reynolds was studied. According to the aerodynamic loads,the dynamical ... |
| Keywords: | tower unsteady aerodynamic loads dynamic characteristics dynamic response |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |