Development and Validation of a Modal Analysis Code for Wind Turbine Blades
Development and Validation of a Modal Analysis Code for Wind Turbine Blades
复制标题
风力涡轮机叶片模态分析代码的开发和验证
DOI：
10.1115/gt2014-27151
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
C. Paschereit
中科院分区：
文献类型：
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作者：
M. Lennie;D. Marten;G. Pechlivanoglou;C. Nayeri;C. Paschereit
摘要QBlade是柏林理工学院开发的一个开源风力涡轮机设计和仿真工具。为了能够与NREL的气动弹性仿真工具FAST耦合，创建了一个称为QFEM的approach模块，并将其与QBlade集成。该模块使用各向同性锥形Eu-ler梁单元对在QBlade中设计的转子叶片进行模态分析。新开发的模块现在为国家可再生能源实验室的气动弹性模拟工具FAST提供结构特性。梁单元的二维结构特性是用积分方法建立的。大量的测试案例表明，二维集成方法和梁单元代码具有足够的精度，模态分析代码的集成极大地促进了转子叶片的结构设计和分析，并将在开源许可下向公众提供。术语[EA]纵向刚度[ES xR ]绕x参考轴的刚度矩[ES
ABSTRACT QBlade is an open source wind turbine design and simula-tion tool developed at the Berlin Institute of Technology. To en-able a coupling with the aeroelastic simulation tool FAST fromNREL an aditional module, called QFEM, was created and in-tegrated with QBlade. This module performs a modal analysison rotor blades designed in QBlade using isotropic tapered Eu-ler Beam elements. The newly developed module now providesstructural properties to the National Renewable Energy Labo-ratorys aeroelasticity simulation tool FAST. The 2D structuralproperties of the beam elements are created using integrationmethods. A number of test cases show that the 2D integrationmethods and beam element code work with adaquete accuracy.The integration of the modal analysis code greatly facilitates thestructural design and analysis of rotor blades and will be madeavailable to the public under an open source license. NOMENCLATURE [EA] Longitudinal Stiffness[ES xR ] Moment of Stiffness about the x Ref. Axis[ES