噪声与振动控制2017，Vol.37Issue(3)：37-41,5.DOI:10.3969/j.issn.1006-1355.2017.03.007
分段式结构对风力机塔架振动特性的影响分析
Analysis of the Influence of Sectional Structure on Vibration Characteristics of Wind Turbine Towers
摘要
Abstract
The instability problem of the wind power towers induced by the sectional structure is studied. The rigid finite element method is used to establish the three-dimensional dynamic model of the sectional structure. The first five non-zero modals are extracted. The modal characteristics of the inner and outer flanges of the joints of the tower are studied under the turbulent conditions. The results show that the vibration displacements of the outer flange are all smaller than those of the inner flange. The magnitudes of vibration variation are small, so the resonance is unlikely to occur. The first order vibration of the outer flange plays a dominant role in nonlinear torsional deformation. The results provide a reference for the towers to avoid the resonance in the operation process.关键词
振动与波/塔架/分段式结构/频谱/扭转变形Key words
vibration and wave/tower/sectional structure/vibration spectrum/torsional deformation分类
能源科技引用本文复制引用
程友良,薛占璞,渠江曼,蒋衍..分段式结构对风力机塔架振动特性的影响分析[J].噪声与振动控制,2017,37(3):37-41,5.基金项目
国家自然科学基金重点基金(11232012) （11232012）
中央高校基本科研业务费专项资金项目(2016XS107) （2016XS107）
