樟木-玻璃纤维复合材料叶片应力的有限元分析
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摘要
以100W樟木-玻璃纤维复合材料叶片为研究对象,分析了不同风速下叶片载荷,通过ANSYS软件对叶片的应力分布进行仿真分析。结果表明,在实际运行条件下叶片表层的玻璃纤维材料承载主要的载荷,最大应力为283.7k Pa,而叶片内部的樟木芯在对应风速所承载载荷较小,仅为74.5 k Pa;在改变叶片各层玻璃纤维分布方向时叶片整体的应力分布会随之改变,通过优化铺层可以提高叶片整体强度。研究结果可为风电机组叶片轻量化设计及玻璃纤维的铺层设计提供基础。
Base on the 100 W camphor-glass fiber composite blade,the blade load under different wind speeds is analyzed,and the stress distribution of the blade is simulated by ANSYS software. he results show that the main bearing load on the leaf surface of glass fiber materials under actual conditions,the maximum stress is 283. 7 kPa,while the interior leaves in the corresponding core Zhangmu wind load is small,only 74. 5 kPa; when changing the blade the layers of glass fiber distribution direction of the stress distribution of the whole blade will change. Through the optimization layer can improve the overall strength of blade. The research results can provide a basis for the lightweight design of wind turbine blades and the design of the layer of glass fiber.
Base on the 100 W camphor-glass fiber composite blade,the blade load under different wind speeds is analyzed,and the stress distribution of the blade is simulated by ANSYS software. he results show that the main bearing load on the leaf surface of glass fiber materials under actual conditions,the maximum stress is 283. 7 kPa,while the interior leaves in the corresponding core Zhangmu wind load is small,only 74. 5 kPa; when changing the blade the layers of glass fiber distribution direction of the stress distribution of the whole blade will change. Through the optimization layer can improve the overall strength of blade. The research results can provide a basis for the lightweight design of wind turbine blades and the design of the layer of glass fiber.
引文
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[2]郑小霞,叶聪杰,符杨.海上风电机组状态监测与故障诊断的发展和展望[J].化工自动化及仪表,2013,40(4):429-434.
[3]刘德顺,戴巨川,胡燕平,等.现代大型风电机组现状与发展趋势[J].中国机械工程,2013,24(1):125-135.
[4]胡燕平,戴巨川,刘德顺.大型风力机叶片研究现状与发展趋势[J].机械工程学报,2013,49(10):140-150.
[5]王昊,范海哲,李帅斌.风力发电机叶片建模及有限元分析[J].上海电力学院学报,2016,32(3):257-260.
[6]李志敏,李春,高伟,等.大型风力机复合材料叶片铺层设计及结构特性研究[J].现代制造工程,2014,32(3):5-9.
[7]牟书,香陈淳,邱桂杰,等.碳纤维复合材料在风电叶片中的应用[J].新材料产业,2012(2):25-29.
[8]马祥林,任婷,徐卫平.大型碳纤维复合材料风机叶片成型工艺与发展[J].纤维复合材料,2011(3):26-29.
[9]陈恩灵.天然纤维材料在大型风电叶片制造中的应用[J].风能,2011,3:36-40.
[10]李明,田德,王海宽,等.风电机组叶片动态应力测试实验与分析[J].内蒙古农业大学学报,2011,32(1):189-193.
[11]李明,田德,王海宽,等.变桨距风力发电机组叶片模型的载荷测试实验[J].太阳能学报,2013,34(9):1574-1578.