Instability and vibration of a rotating Timoshenko beam with precone

Sen Yung Lee, Shueei Muh Lin, Yu Sheng Lin

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)

摘要

A rotating blade with a precone angle is usually designed, but little literature has investigated the effect of the precone angle on vibration. This paper investigates divergence instability and vibration of a rotating Timoshenko beam with precone and pitch angles. It uses Hamilton's principle to derive the coupled governing differential equations and boundary conditions for a rotating Timoshenko beam. Analytical solution of an inextensional Timoshenko beam without taking into account the Coriolis force effect can be derived. Some simple relations among the parameters of rotating Timoshenko beams are revealed. Based on these relations, one can predict the natural frequencies and parameters of other systems from those of known systems. Moreover, the mechanism of divergence instability (tension buckling) is investigated. Finally, the effects of the parameters on natural frequencies, and the phenomenon of divergence instability are investigated.

原文English
頁(從 - 到)114-121
頁數8
期刊International Journal of Mechanical Sciences
51
發行號2
DOIs
出版狀態Published - 2009 二月

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 機械工業

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