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论文:2012,Vol:30,Issue(6):825-829 |
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引用本文： |
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赵旭, 王祥云, 薛榕融. 风力机复合材料叶片静强度分析与铺层设计[J]. 西北工业大学 |
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Zhao Xu, Wang Xiangyun, Xue Rongrong. Exploring Static Strength Analysis and Layer Design of Composite Wind Turbine Blade[J]. Northwestern polytechnical university |
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| 风力机复合材料叶片静强度分析与铺层设计 |
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| 赵旭, 王祥云, 薛榕融 |
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| 西北工业大学 航空学院, 陕西 西安 710072 |
| 摘要: |
| 文章采用有限元方法层合板模型分析风力机叶片在气动力、离心力和重力载荷下的静强度,气动力由动量-叶素理论获得并采用接触对加载,结果表明气动力是影响叶片强度的主要载荷,其次是离心力和重力,后二者可忽略;铺层方向测试表明:纤维沿展向铺层最佳,沿切向最差;铺层方向组合和变厚度叶片分析表明:铺层沿展向略微交错强度高于不交错;8个铺层方案对比获得最佳方案为从根部到梢部依次采用实心、5mm和3mm铺层,最小变形和应力接近极限情况。 |
| 关键词:
风力机
叶片
气动力
有限元分析
复合材料
失效分析
层合板
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| Exploring Static Strength Analysis and Layer Design of Composite Wind Turbine Blade |
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| Zhao Xu, Wang Xiangyun, Xue Rongrong |
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| College of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| Sections 1 through 3 explain and evaluate the results of our exploration mentioned in the title,which webelieve are of some use to designers. The core of sections 1 and 2 consists of: (1) the laminate model of the finiteelement analysis software ANSYS is employed to analyse static strength of a wind turbine blade under aerodynamic,centrifugal and gravity forces; (2) self-developed Fortran program has been applied to compute the aerodynamicforce based on the momentum and blade element theory. Simulation results,presented in Tables 1 and 2 and Figs.2 through 7 show preliminarily that: (1) aerodynamic force has the greatest effect on the strength of the blade,while centrifugal force and gravity can be ignored; (2) numerical tests concerning layer direction show that the bestdirection of fiber is along radial direction and the worst is along circumferential direction; (3) the combination ofdifferent layer direction and thickness variation analyses shows that fiber along radial direction with slight cross isbetter than without cross; (4) the best layer design scheme,obtained through varying the composite material ofblade from root to tip gradually from solid to 5mm and then to 3 mm thickness,can obtain the minimum deflectionand stress. |
| Key words:
aerodynamics
composite materials
computer simulation
computer software
design
failure analy-sis
finite element method
laminates
structural analysis
turbomachine blades
wind turbines
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| 收稿日期: 2011-12-15
修回日期:
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| DOI: |
| 通讯作者:
Email： |
| 作者简介: 赵旭(1974-)，女，西北工业大学副教授、博士，主要从事流体机械、CFD和风力发电研究。
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| 作者相关文章 |
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| 赵旭 在本刊中的所有文章 |
| 王祥云 在本刊中的所有文章 |
| 薛榕融 在本刊中的所有文章 |
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参考文献: |
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[1] 贺德馨等.风工程与工业空气动力学.北京:国防工业出版社.2006He D X，et al.Wind Engineering and Industrial Aerodynamics.Beijing: National Defence Industry Press, 2006 (in Chinese)
[2] Prandtl L，Tietjens O G.Applied Hydro and Aeromechanics.Dover Publication, 1957
[3] Glauert H.Windmill and Fans.Aerodynamics Theory，edit by Durand W F.Julius Springer，Berlin，Germany, 1935
[4] Tsai S W，Hahn H T.Introduction to Composite Materials.Technomic Pub.Co.,Westport，Connecticut, 1980
[5] 蔡天舒.复合材料螺栓连接数值分析及次弯曲效应研究: [硕士学位论文].武汉:武汉理工大学, 2010Cai T S.Numerical Analysis and Second Bending Effect Research of Composite Material Bolt Connection.Master Degree Disser-tation.Wuhan: Wuhan University of Technology, 2010 (in Chinese) |
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1．赵士洋, 薛璞.损伤变量对复合材料损伤演化过程的影响分析[J]. 西北工业大学, 2014,32(4): 542-545 |
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2．卜月鹏, 宋文萍, 韩忠华, 许建华.基于CST参数化方法的翼型气动优化设计[J]. 西北工业大学, 2013,31(5): 829-836 |
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