Paper Title:
Response of Two-Disk Rotor with Squeeze Film Dampers and its Variation with Parameters
  Abstract

This paper investigated the variation of dynamical response of a low pressure rotor in turbo-shaft engine with its system parameters. Based on the model of low pressure rotor, a dynamical simplified model of two-disk rotor with Squeeze Film Damper at each end was built. Its motion equations were derived. The numerical method was applied to solve the 12-dimensions differential equations. The influence of some parameters, e.g., rotating speed, eccentricity and its phase angle, mass ratio of two disks, were analyzed. From simulation results, it can be seen that when phase difference of two disks’ eccentricity is π, the two disks have their minimum vibration amplitude respectively. When their phase is identical, their vibration responses reach maximum values. The larger the mass of mid-span disk is, the larger the vibrations of two disks are. When mass of mid-span is lesser than that of overhung rotor, the response of system will decrease.

  Info
Periodical
Chapter
Chapter 2: Dynamics and Vibration
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
369-372
DOI
10.4028/www.scientific.net/AMM.117-119.369
Citation
T. Sun, W. Y. Qin, X. D. Jiao, "Response of Two-Disk Rotor with Squeeze Film Dampers and its Variation with Parameters", Applied Mechanics and Materials, Vols. 117-119, pp. 369-372, 2012
Online since
October 2011
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Price
$32.00
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