随机风荷载激励梁的动力分析

Giovanni Rossi, Iago Maran Machado, A. Borges, Andreia Aoyagui Nascimento
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引用次数: 0

摘要

. 本项目旨在模拟浸入式结构的随机风荷载,为风力发电机组结构系统的性能和完整性分析提供依据。为此,采用了由欧拉-伯努利梁理论建立的具有线性行为的梁。因此,使用Kaimal方法生成了用于风速发展的谱密度。然后,计算了它与梁接触时所施加的阻力,使观察其动态行为成为可能。最后,利用ANSYS APDL软件得到的数值与本工作中开发的方法进行了比较。构造了结构响应的自谱,以显示所提出的力所激发的频率范围。
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ANÁLISE DINÂMICA DE UMA VIGA EXCITADA PELO CARREGAMENTO RANDÔMICO DO VENTO
. This project aims to simulate random wind loading in immersed structures, which can be used for a performance and integrity analysis of the structural systems of a wind turbine. For this, a beam with linear behavior modeled from the theory of Euler-Bernoulli beams was used. Thus, the spectral density was generated, using the Kaimal Method, for the development of wind speed. And, later, the drag force that it exerts when in contact with the beam was calculated, making it possible to observe its dynamic behavior. Finally, the values found using the ANSYS APDL software were compared with the methodology developed in this work. And the auto-spectra of the structural response were generated in order to show the frequency range excited by the proposed force.
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