Effect of taper ratio on vibration and stability of a composite thin-walled spinning shaft

Sung Soo Na, Hyungwon Yoon, Liviu Librescu

Research output: Contribution to journalArticle

27 Citations (Scopus)


This paper deals with the vibration and stability of a circular cylindrical shaft modeled as a tapered thin-walled composite beam, spinning with constant angular speed about its longitudinal axis and subjected to an axial compressive force. Hamilton's principle is used to derive the equations of motion and the associated boundary conditions. The resulting eigenvalue problem is analyzed, and the types of instability experienced by these structural systems are determined for selected values of the taper ratio, spinning speed and compressive force. It is also found that via the structural tailoring and beam tapering, the natural frequencies, stiffness and the stability regions can significantly be enhanced as compared to those of uniform shafts made of the same material.

Original languageEnglish
Pages (from-to)362-371
Number of pages10
JournalThin-Walled Structures
Issue number3
Publication statusPublished - 2006 Mar 1



  • Flutter and divergence
  • Gyroscopic effects
  • Spinning shaft
  • Thin-walled beams

ASJC Scopus subject areas

  • Civil and Structural Engineering

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