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Modal Parameter Identification of New Design of Vertical Axis Wind Turbine

机译:垂直轴风力涡轮机新设计的模态参数识别

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Vertical axis wind turbines have lower power efficiency than the horizontal axis wind turbines. However vertical axis wind turbines are proven to be economical and noise free on smaller scale. A new design of three bladed vertical axis wind turbine by using two airfoils in construction of each blade has been proposed to improve power efficiency. The purpose of two airfoils in blade design of vertical axis wind turbine is to create high lift which in turns gives higher power output. In such case the structural parameter identification is important to understand the system behavior due to its first kind of design before experimental analysis. Therefore a study is carried out to determine the natural frequency to avoid unstable state of the system due to rotational frequency of rotor. The present paper outlines a conceptual design of vertical axis wind turbine and a modal analysis by using Abaqus cae software. The study is limited to evaluate lowest fundamental modal frequencies and mode shapes of proposed wind turbine.
机译:垂直轴风力涡轮机的功率效率低于水平轴风力涡轮机。然而,垂直轴风力涡轮机被证明是经济的,并且在较小的尺度上无噪音。已经提出了通过使用两个翼型的三个叶片垂直轴风风力涡轮机的新设计,以提高每个刀片的施工,以提高功率效率。两个翼型在垂直轴风风力涡轮机叶片设计中的目的是创造高升力,又提供更高的功率输出。在这种情况下,结构参数识别对于在实验分析之前的第一种设计原因是理解系统行为非常重要。因此,执行研究以确定由于转子的旋转频率为避免系统的不稳定状态的自然频率。本文概述了垂直轴风风力涡轮机的概念设计,并通过使用ABAQUS CAE软件进行模态分析。该研究仅限于评估所提出的风力涡轮机的最低基础模态频率和模式形状。

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