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首页> 外文会议>Wind energy symposium 2018 >Gravo-Aeroelastic Scaling a 13.2 MW Wind Turbine Blade to a 1-Meter Model
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Gravo-Aeroelastic Scaling a 13.2 MW Wind Turbine Blade to a 1-Meter Model

机译：Gravo-空气弹性将13.2 MW风力涡轮机叶片缩放至1米模型

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摘要

The SNL100-03 wind turbine blade is an ultra-light blade that represents a state-of-the-art design for a 13.2 MW extreme-scale wind turbine. Testing this 100-meter long blade design by Sandia National Labs can be prohibitively expensive at full-scale. Therefore, a 1% sub-scale model of the SNL100-03 wind turbine blade was herein defined, fabricated and statically tested based on a new gravo-aeroelastic scaling method. This method allows for the stiffness as well as the mass to be scaled representing the non-dimensional blade deflections and dynamics that would be expected in the full-scale blade under commensurate loads and operations. The scaled models were designed and fabricated based on a 1% geometric scaling of the full-scale 100-meter blade. Five different blade structural design iterations were considered with the final version showing the best overall fidelity of matching the key scaling parameters: blade mass, flapwise stiffness and edgewise stiffness. This final version was 3D printed on a PolyJet 3D printer using the VeroWhite material, has a carbon fiber spar cap, and is covered in cling wrap for aerodynamic surface definition. The final design version was within 1.5% of the ideal mass, and has reasonable stiffness (though high in the flapwise direction and low in the edgewise direction). The results show that the scaling method is both conceptually and practically realizable for scales as small as 1%. Future work is recommended to further optimize the blade design and employ the blades in an operational wind turbine to investigate blade deflection and dynamics.
机译：SNL100-03风力涡轮机叶片是一种超轻叶片，代表了13.2 MW极端规模风力涡轮机的最新设计。桑迪亚国家实验室（Sandia National Labs）对这种100米长的刀片设计进行测试可能会在全尺寸上花费过高。因此，在此基于新的重气动弹性缩放方法定义，制造和静态测试了SNL100-03风力涡轮机叶片的1％子比例模型。该方法允许按比例缩放刚度和质量，以表示在相应的负载和操作下满量程叶片中所期望的无量纲叶片挠度和动力。比例模型是基于100米全尺寸刀片的1％几何比例设计和制造的。考虑了五种不同的叶片结构设计迭代，最终版本显示出与关键缩放参数相匹配的最佳总体保真度：叶片质量，翼向刚度和边缘向刚度。最终版本是使用VeroWhite材料在PolyJet 3D打印机上进行3D打印的，具有碳纤维翼梁盖，并用保鲜膜覆盖以确保空气动力学表面的清晰度。最终的设计版本在理想质量的1.5％以内，并且具有合理的刚度（尽管在襟翼方向上较高，而在边缘方向上较低）。结果表明，缩放比例方法对于小至1％的缩放比例在概念上和实践上都是可以实现的。建议进一步开展工作，以进一步优化叶片设计，并在可操作的风力涡轮机中使用叶片，以研究叶片的偏转和动力。

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  • 来源
    《Wind energy symposium 2018》|2018年|573-584|共12页
  • 会议地点 Kissimmee(US)
  • 作者

    Meghan Kaminski; Eric Loth; Chris Qin; D. Todd Griffith;

  • 作者单位

    University of Virginia, Charlottesville, VA, 22904;

    University of Virginia, Charlottesville, VA, 22904;

    University of Virginia, Charlottesville, VA, 22904;

    University of Virginia, Charlottesville, VA, 22904;

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  • 正文语种 eng
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