Applied Mathematics and Mechanics (English Edition) ›› 1982, Vol. 3 ›› Issue (5): 731-738.

• Articles • 上一篇    下一篇

FLEXIBLE SHAFT WHIRL INDUCED BY DRY FRICTION AND ITS STABILITY

张文   

  1. Fudan University
  • 收稿日期:1982-01-18 出版日期:1982-09-18 发布日期:1982-09-18
  • 通讯作者: Ouyang Chang

FLEXIBLE SHAFT WHIRL INDUCED BY DRY FRICTION AND ITS STABILITY

Zhang Wen   

  1. Fudan University
  • Received:1982-01-18 Online:1982-09-18 Published:1982-09-18

摘要: This paper is devoted to the study of the whirling phenomena of flexible rotors due to dry friction. The mechanical model used here is a two-degree-of-freedom system in which the rubbing plane is not coincident with the rotating plane of the lumped mass. The characteristic equation of whirl speeds is derived and the whirling modes are obtained. The dynamic stability of each admissible whirling motion is also discussed. The results show that the whirl speeds are always higher than the critical speed of the shaft.

关键词: numerical method;differential quadrature method;Navier-Stokes equations

Abstract: This paper is devoted to the study of the whirling phenomena of flexible rotors due to dry friction. The mechanical model used here is a two-degree-of-freedom system in which the rubbing plane is not coincident with the rotating plane of the lumped mass. The characteristic equation of whirl speeds is derived and the whirling modes are obtained. The dynamic stability of each admissible whirling motion is also discussed. The results show that the whirl speeds are always higher than the critical speed of the shaft.

Key words: numerical method;differential quadrature method;Navier-Stokes equations

APS Journals | CSTAM Journals | AMS Journals | EMS Journals | ASME Journals