Paper Title:
Analysis on Bistable Response of a Disk-Rod-Fastening Rotor
  Abstract

In the view of the fault of bistable response appeared in the disk-rod-fastening rotor, the peculiar structure of this kind rotor was taken into account in this paper. By considering the influence of contact effect of discontinuous interfaces on the rotor stiffness, the tie-rod and the contact surface between the wheel disks were equated to a bending resistance spring with nonlinear stiffness. Then the equation of motion of the disk-rod-fastening rotor was put forward according to this simplification. The vibration characteristics of rotor was calculated by the harmonic balance method that combined with the predict-correct and homotopy arithmetic. The bistable response behaviors recurred in this simplified model was much closer to the measured results in flying. The study showed that the nonlinear factor of stiffness, resulted from the contact effect of discontinuous interfaces, was the main reason which led to the appearance of bistable response in the disk-rod-fastening rotor.

  Info
Periodical
Advanced Materials Research (Volumes 199-200)
Edited by
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
Pages
983-987
DOI
10.4028/www.scientific.net/AMR.199-200.983
Citation
L. Cheng, Z. W. Qian, W. Chen, "Analysis on Bistable Response of a Disk-Rod-Fastening Rotor", Advanced Materials Research, Vols. 199-200, pp. 983-987, 2011
Online since
February 2011
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Price
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