• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 17 Issue 5
Oct.  2004
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Article Contents
LIUFei, YANG Yi-ren. Bifurcations of 2-Multiple Semistable Limit Cycles ofAirfoils with Cubic Nonlinearity[J]. Journal of Southwest Jiaotong University, 2004, 17(5): 638-641.
Citation: LIUFei, YANG Yi-ren. Bifurcations of 2-Multiple Semistable Limit Cycles of Airfoils with Cubic Nonlinearity[J]. Journal of Southwest Jiaotong University, 2004, 17(5): 638-641.

Bifurcations of 2-Multiple Semistable Limit Cycles of Airfoils with Cubic Nonlinearity

  • Publish Date: 25 Oct 2004
  • Bifurcations of 2-multiple semi-stable limit cycles, as well as supercritical and subcritical Hopf bifurcations of an airfoil flutter system with cubic nonlinearity in incompressible flows were studied. Air speed and the linear stiffness coefficient of pitching were taken to form a 2-dimensional parameter plane, and the analytic solutions of critical boundaries of Hopf bifurcations were obtained in the 2-dimensional parameter plane. As a result, the critical speed and linear stiffness for bifurcations of the 2-multiple semi- stable limit cycles were determined by means of harmonic balance method.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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