Stability of a pretwisted blade with rotating speed

Shih-Ming Yang, S. M. Tsao

研究成果: Conference contribution

摘要

An analytical model is presented to investigate the vibration and stability of a pretwisted blade under nonconstant rotating speed. Two coupled bending displacements in flapwise and edgewise directions are considered. The time-dependent rotating speed leads to nonautonomous systems in which parametric resonance can occur. Six parametric instabilities, including primary and combination resonances, are predicted by using multiple scale method. These instability predictions are compared with those from numerical results of a more detail model. Among all instabilities, the combination resonance when perturbed frequency near twice of the fundamental frequency is found to be most critical and sensitive to system parameters.

原文English
主出版物標題Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education
發行者American Society of Mechanical Engineers
ISBN(電子)9780791878972
DOIs
出版狀態Published - 1992 1月 1
事件ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992 - Cologne, Germany
持續時間: 1992 6月 11992 6月 4

出版系列

名字ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992
5

Other

OtherASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992
國家/地區Germany
城市Cologne
期間92-06-0192-06-04

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術
  • 燃料技術
  • 核能與工程
  • 航空工程
  • 機械工業

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