基于混沌搜索的600KW风力机塔架结构优化设计.pdf

文档介绍：1
第 19 卷第 11 期系统仿真学报© Vol. 19 No. 11
2007 年 6 月 Journal of System Simulation Jun., 2007
基于混沌搜索的 600KW 风力机塔架结构优化设计
赵吉文 1,2,刘永斌 2,陈军宁 1,孔凡让 2
(, 合肥 230039; , 合肥 230027)
摘要:采用有限元方法对风力发电机塔架进行模态分析,得出了不同结构参数下塔架的固有频率;
然后采用支持向量机(the Support Vector Machine)建模方法,建立了塔架结构参数与固有频率之
间的快速计算模型;以混沌搜索为寻优手段,对塔架结构进行了优化;将优化结果和正交优化结
果进行了比较,并采用有限元方法对所得塔架结构进行强度校核。研究深化了风力机的仿真设计,
取得了较好的效果。
关键词:风力机;塔架;支持向量机;混沌搜索;有限元
中图分类号:TK83 文献标识码:A 文章编号:1004-731X (2007) 11-2425-04
Optimization Design of Tower Structure of 600KW-Wind Turbine
Based on Chaotic Search
ZHAO Ji-wen1,2, LIU Yong-bin2, CHEN Jun-ning1, KONG Fan-rang2
( of Electronic Science and Technology, Anhui University, Hefei 230039, China;
of Precision Mechanical and Precision Instrumentation, USTC, Hefei 230027, China)
Abstract: The modal analysis of the tower structure of 600KW-Wind Turbine was carried out in the finite element method (FEM),
and the free frequencies of towers were obtained. By means of the Support Vector Machine (SVM) model method, the rapid
calculation model which can map the relation between the tower’s structure parameters and its free frequencies was established.
The tower structure was optimized with the chaotic optimization, and the results of the chaotic optimization and that of orthogonal
optimization pared. The strength