全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

风力机风振背景、共振响应特性及耦合项分析

, PP. 101-108

Keywords: 风力机系统,风振响应,耦合效应,风场模拟,风振系数

Full-Text   Cite this paper   Add to My Lib

Abstract:

基于已提出的可考虑结构共振模态之间、背景与共振模态之间耦合效应的风振计算方法“一致耦合法”,对某兆瓦级大型风力机系统进行风振反应分析。首先建立风轮-机舱-塔体一体化有限元模型,获取并分析系统动力特性;然后采用谐波叠加法和改进的叶素动量理论,模拟考虑相干和旋转效应的风轮-塔架脉动风场;最后进行风力机塔轮系统结构的风振动力反应计算。通过与全模态精确解的对比探讨,揭示了风力发电塔轮系统风振背景、共振响应分布特性,以及模态间耦合效应的作用机理,并给出了风力机塔轮系统风振系数的建议取值,为兆瓦级风力机系统的抗风设计提供科学依据。

References

[1]  Ronold K O,Larsen G C.Optimization of a design code for wind turbine rotor blades in fatigue[J].Engineering Structure,2001,23(4):993-1002.
[2]  Tarp-Johansen N J,Madsen P H,Frandsen S.Partial safety factors in the 3rd edition of IEC 61400-1:wind turbine generator systems-part 1:safety requirements[R].Denmark:Riso National Laboratory,2002.
[3]  Tempel J V D.Design of support structures for offshore wind turbines[D].Netherlands:Delft University of Technology,2006.
[4]  Dragt J B.The spectra of wind speed fluctuations met by a rotating blade,and resulting load fluctuations[C]//In Proceeding of European Wind Energy Conf.1984,Bedford,1985:122-127.
[5]  Burton T,Sharpe D,Jenkins N,et al.Wind energy handbook[M].Chichester:John Wiley&Sons,2001.
[6]  Cheng P W.A reliability based design methodology for extreme response of offshore wind turbine[D].Netherlands:Delft University of Technology,2002.
[7]  贺广零.风力发电高塔系统风致随机动力响应分析与抗风动力可靠度研究[D].上海:同济大学,2009.He Guangling.Stochastic dynamic response and reliability analysis of wind turbine systems under wind loads[D].Shanghai:Tongji University,2009(in Chinese).
[8]  李杰,陈建兵.随机振动理论与应用新进展[M].上海:同济大学出版社,2009.Li Jie,Chen Jianbing.Advances in theory and applications of random vibration[M].Shanghai:Tongji University Press,2009(in Chinese).
[9]  Ahsan K.Numerical simulation of wind effects:a probabilistic perspective[J].Journal of Wind Engineering and Industrial Aerodynamics,2008,12(96):1472-1497.
[10]  Wang T G,Coton F N.Prediction of the unsteady aerodynamic characteristics of horizontal-axis wind turbines including three-dimensional effects[J].Proceedings of the Institution of Mechanical Engineers Part A:Journal of Power and Energy,2000,214(A5):385-400.
[11]  陈小波,陈建云.海上风力发电塔脉动风速时程数值模拟[J].中国电机工程学报.2008,28(32):111-116.Chen Xiaobo,Chen Jianyun.Numerical simulation of fluctuating wind velocity time series of offshore wind turbine[J].Proceedings of the CSEE.2008,28(32):111-116(in Chinese).
[12]  伍艳,谢华,王同光.风力机叶片的非定常气动特性计算方法的改进[J].工程力学,2008,25(10):54-60.Wu Yan,Xie Hua,Wang Tongguang.Modification of calculating unsteady aerodynamic characteristics of wind turbine blades[J].Engineering Mechanics.2008,25(10):54-60(in Chinese).
[13]  柯世堂,葛耀君.基于一致耦合法的大型博物馆结构风致响应精细化研究[J].建筑结构学报,2012,33(2):23-29.Ke Shitang,Ge Yaojun.Refined research on wind-induced response of roof structure OFA large museum based on consistent coupled method[J].Journal of Building Structure.2012,33(2):23-29(in Chinese).
[14]  Ke S T,Ge Y J,Zhao L,et al.A new methodology for analysis of equivalent static wind loads on super-large cooling towers[J].Journal of Wind Engineering & Industrial Aerodynamics,2012,111(3):30-39.
[15]  Germanischer L.GL-2005 Rules and guidelines IV-industrial services,part 2-guideline for the certification of offshore wind turbines[S].Hamburg:Germanischer Lloyd,2005.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133