Modeling and bending vibration of the blade of a horizontal-axis wind power turbine
作者： Shueei Muh Lin , Sen Yung Lee , Yu Sheng Lin
DOI: 10.3970/CMES.2008.023.175
关键词:
摘要: The blade of a horizontal-axis wind power turbine is modeled as rotating beam with pre-cone angles and setting angles. Based on the Bernoulli-Eulerbeam theory, withoutconsidering axial extension deformation Corio- lis forces effect, governing differential equa- tions for bending vibration are derived. It pointed out that if geometric material properties in poly- nomial forms, then exact solution sys- tem can beobtained. thefrequency rela- revealed, without tedious numerical anal- ysis, one reach many general qualitative con- clusions between natural frequencies physical parameters beams. validity conclusions not limited specialized do- mains. Finally, influences an- gle, angular speed angle studiedby proposed method. phenomenon divergence instabilityis also discussed. Keyword: beam, vibration,
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