Response of two-disk rotor with squeeze film dampers and its variation with parameters

Tao Sun, Weiyang Qin, Xudong Jiao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationMaterials and Computational Mechanics
Pages369-372
Number of pages4
DOIs
StatePublished - 2012
Event2011 International Conference on Applied Mechanics, Materials and Manufacturing, ICAMMM 2011 - Shenzhen, China
Duration: 18 Nov 201120 Nov 2011

Publication series

NameApplied Mechanics and Materials
Volume117-119
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Applied Mechanics, Materials and Manufacturing, ICAMMM 2011
Country/TerritoryChina
CityShenzhen
Period18/11/1120/11/11

Keywords

  • Eccentricity
  • Phase
  • Rotating speed
  • Squeeze film damper
  • Two-disk rotor

Fingerprint

Dive into the research topics of 'Response of two-disk rotor with squeeze film dampers and its variation with parameters'. Together they form a unique fingerprint.

Cite this