风力发电机在地震-风力作用下的载荷计算

中国机械工程 ›› 2011, Vol. 22 ›› Issue (18): 2236-2240.

风力发电机在地震-风力作用下的载荷计算

吴春艳1，2;金鑫1;何玉林1;王磊1;刘桦1

1.重庆大学,重庆,400044

2.重庆电子工程职业学院,重庆,401331

出版日期:2011-09-25 发布日期:2011-09-27
基金资助:
国家自然科学基金资助项目(51005255)；高等学校博士学科点科研基金资助项目(20090191120005)；重庆市自然科学基金资助项目(CSTC2008BB6316)
National Natural Science Foundation of China（No. 51005255）;

Specialized Research Fund for the Doctoral Program of Higher Education of China（No. 20090191120005）;
Natural Science Foundation of Chongqing（No. CSTC2008BB6316）

Load Calculation of Wind Turbine Subjected to Earthquake and Wind

Wu Chunyan1,2;Jin Xin1;He Yulin1;Wang Lei1;Liu Hua1

1.Chongqing University,Chongqing,400044

2.Chongqing College of Electronic Engineering,Chongqing,401331

Online:2011-09-25 Published:2011-09-27
Supported by:

National Natural Science Foundation of China（No. 51005255）;

Specialized Research Fund for the Doctoral Program of Higher Education of China（No. 20090191120005）;
Natural Science Foundation of Chongqing（No. CSTC2008BB6316）

摘要/Abstract

摘要：

为了对风力发电机在地震-风力作用下的受力情况进行仿真计算,采用多柔体系统动力学理论建立了风力发电机结构动力学分析模型,并在FORTRAN下编程实现;采用动态入流理论进行气动载荷计算,用Euro code 8生成地震谱。以某企业开发的大型风力机为对象，应用该方法，首先进行了模态分析和地震载荷谱计算，同权威计算软件GH Bladed计算结果的比较表明,建立的计算模型正确可行;然后，对该风力机在地震-风力联合作用下的载荷进行了计算,结果显示,此时风力机所受载荷比正常情况下高出许多。

关键词:

风力发电机, 多柔体系统动力学理论, 地震, 风载, 载荷计算

Abstract:

To calculate the loads on wind turbine subjected to earthquake and wind, a structural dynamic model of offshore wind turbine was established based on flexible multi-body dynamics theory and the model was programmed in FORTRAN;the aerodynamic load was calculated based on the dynamic inflow theory and earthquake spectrum was calculated by the Euro code 8. A wind turbine was chosen as study object, the modal analysis and calculation of earthquake spectrum were done by the method. The calculation results are similar to those calculated by GH Bladed which was an authoritative software of wind power, as a result, the correctness and feasibility of the method were verified. Moreover, the loads on wind turbine subjected to earthquake and wind were calculated by the method and the results show that the loads by earthquake and wind are much higher than those at normal conditions.

Key words: wind turbine, flexible multi-body dynamics theory, earthquake, wind load, load calculation

中图分类号:

TP391

吴春艳1, 2, 金鑫1, 何玉林1, 王磊1, 刘桦1.

风力发电机在地震-风力作用下的载荷计算

[J]. 中国机械工程, 2011, 22(18): 2236-2240.

TUN Chun-Yan-1, 2, JIN Xin-1, HE Yu-Lin-1, WANG Lei-1, LIU Hua-1.

Load Calculation of Wind Turbine Subjected to Earthquake and Wind

[J]. China Mechanical Engineering, 2011, 22(18): 2236-2240.

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