Steady state response and stability of rotating composite blades with frictional damping

T. N. Shiau, J. S. Rao, Y. D. Yu, S. T. Choi

Research output: Contribution to journalConference articlepeer-review


Friction dampers are widely used to improve the performance of rotating blades. This paper is concerned with the steady state response and stability analysis of rotating composite plates in the presence of non linear friction damping. Direct Integration Method (DIM) and Harmonic Balance Method (HBM) are used to determine the steady state response due to periodic lateral external forces. In addition, an alternate procedure, Hybrid Method (HM) is proposed for this analysis to substantiate the results from DIM and HBM. The analysis shows that the steady state response is a function of friction damping magnitude as well as its location besides the excitation frequency and the rotational speed. A stability analysis of the composite blades is also made by including periodic in-plane excitation using Floquet-Lyapunov theory.

Original languageEnglish
Pages (from-to)10
Number of pages1
JournalAmerican Society of Mechanical Engineers (Paper)
Publication statusPublished - 1996 Jan 1
EventProceedings of the 1996 International Gas Turbine and Aeroengine Congress & Exhibition - Burmingham, UK
Duration: 1996 Jun 101996 Jun 13

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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