Applied Mathematics and Mechanics (English Edition) ›› 1999, Vol. 20 ›› Issue (12): 1319-1323.

• 论文 • 上一篇    下一篇

SUBHARMONIC AND ULTRA-SUBHARMONIC RESPONSE OF NONLINEAR ELASTIC BEAMS SUBJECTED TO HARMONIC EXCITATION

张年梅, 杨桂通   

  1. Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, P. R. China
  • 收稿日期:1998-09-15 修回日期:1999-09-05 出版日期:1999-12-18 发布日期:1999-12-18
  • 基金资助:
    the National Natural Science Foundation of China(19672038)

SUBHARMONIC AND ULTRA-SUBHARMONIC RESPONSE OF NONLINEAR ELASTIC BEAMS SUBJECTED TO HARMONIC EXCITATION

Zhang Nianmei, Yang Guitong   

  1. Institute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, P. R. China
  • Received:1998-09-15 Revised:1999-09-05 Online:1999-12-18 Published:1999-12-18
  • Supported by:
    the National Natural Science Foundation of China(19672038)

摘要: In this paper,the dynamics response of beams subjected to transverse harmonic excitation is studied.The nonlinearity of constitutive relations of the beam material is considered.When the buckled beams compressed by axial forces are subjected to transverse period perturbation,the harmonic bifurcates into subharmonic and ultra-subharmonic sequences.The critical conditions for subharmonic and ultra-subharmonic orbits are determined by use of Melnikov method.

Abstract: In this paper,the dynamics response of beams subjected to transverse harmonic excitation is studied.The nonlinearity of constitutive relations of the beam material is considered.When the buckled beams compressed by axial forces are subjected to transverse period perturbation,the harmonic bifurcates into subharmonic and ultra-subharmonic sequences.The critical conditions for subharmonic and ultra-subharmonic orbits are determined by use of Melnikov method.

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