Volume 32 Issue 05
May  2006
Turn off MathJax
Article Contents
Deng Yin, Lin Li, Shi Yajie, et al. Dynamic characteristic of squeeze film based on finite element method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(05): 531-535. (in Chinese)
Citation: Deng Yin, Lin Li, Shi Yajie, et al. Dynamic characteristic of squeeze film based on finite element method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(05): 531-535. (in Chinese)

Dynamic characteristic of squeeze film based on finite element method

  • Received Date: 24 Jun 2005
  • Publish Date: 31 May 2006
  • SFD(squeeze film dampers) designed to provide proper amounts of damping and stiffness to alleviate the problem of vibration are used extensively in almost all high-speed rotating machines, such as aeroengine. A squeeze film analysis based on finite element method was proposed for solving the steady state dynamic characteristic of the rotor system supported on squeeze film damper and elastic supports, but most closed form solutions of Reynolds’ equation assumed either a short bearing approximation or a long bearing approximation generally. The finite element model of damper was simulated by the variation of geometry within the flow path. In order to validate the results of theoretic analysis, the pressure distribution and equivalent film damping of typical SFD were calculated by using the finite element method. The effects of film inertia forces were also calculated. Comparison of calculational and experimental results show that the analysis and calculation methods and results of the rotor system dynamic characteristic can be used in engineering practice.

     

  • loading
  • [1] 晏砺堂,朱梓根,宋兆泓,等. 结构系统动力特性分析[M]. 北京:北京航空航天大学 版社,1989 Yan Litang ,Zhu Zigen ,Song Zhaohong, et al. Dynamical characteristic analyse of configuration system[M]. Beijing:Beijing University of Aeronautics and Astronautics Press, 1989(in Chinese) [2] ANSYS fluids analysis guide . The ANSYS Corporation, 2005 [3] 闻邦椿,顾家柳,夏松波,等.高等转子动力学[M]. 北京:机械工业出版社, 1999:270-272 Wen Bangchun, Gu Jialiu, Xia Songbo, et al. Advanced rotor dynamics[M]. Beijing:China Machine Press, 1999:270-272(in Chinese) [4] 马艳红,洪杰,赵福安.自适应挤压油膜阻尼器减振机理理论研究[J]. 北京航空航天大学 报,2004,30(1):5-8 Ma Yanhong, Hong Jie, Zhao Fuan. Theoretical investigation of vibration attenuation mechanism of a adaptive squeeze film damper[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004,30(1):5-8(in Chinese) [5] 郭银朝,孟光,戈立春,惯性力对挤压油膜阻尼器支承转子的响应的影响[J].西北工业大学 报,1997,15(2):294-299 Guo Yinchao, MengGuang, Ge Lichun. Effects of fluid inertia forces on bistable and nonsynchronous responses of squeeze film damper supported flexible rotor[J]. Journal of North Western Polytechnical University, 1997,15(2):294-299(in Chinese) [6] EI-Shafei A. Modeling finite squeeze film dampers ASME Int Gas Turbine Inst Publ IGTI. Amsterdam:ASME, 2002,4B:1175-1186
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(18402) PDF downloads(2027) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return