揺動あるいは急旋回時における弾性支持ロ-タの振動解析  [in Japanese] Vibration Analysis of a Rotor on a Flexible Suspension Subjected to Pitching or Quick Turn Motion  [in Japanese]

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Author(s)

Abstract

High speed rotors in jet engines or turbopumps used in space vehicles are mostly operated at a supercritical speed and their bearings and housings are usually supported elastically from the frame in order to reduce critical speeds. However, when the aircraft or the space vehicle turns or responds to disturbances, the rotor may contact with the casing due to vibration caused by gyroscopic moment. In this paper, a dynamic analysis is performed on vibration of a mechanical system subjected to pitching motion of the frame. Flexibility and mass of bearing housings are taken into account and the axis of pitching motion is assumed to be distant from the center of mass of the rotor. The usefulness of modeling and the validity of the computational program are demonstrated by comparison with the experimental results obtained using a model rotor. The dynamic response of the system in case of quick turn is also calculated.

Journal

  • Transactions of the Japan Society of Mechanical Engineers. Series C.

    Transactions of the Japan Society of Mechanical Engineers. Series C. 57(537), p1477-1484, 1991-05

    The Japan Society of Mechanical Engineers

Cited by:  1

Codes

  • NII Article ID (NAID)
    110002379806
  • NII NACSIS-CAT ID (NCID)
    AN00187463
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03875024
  • NDL Article ID
    3713286
  • NDL Source Classification
    M079(振動工学・音響工学)
  • NDL Source Classification
    ZN11(科学技術--機械工学・工業)
  • NDL Call No.
    Z16-1056
  • Data Source
    CJPref  NDL  NII-ELS 
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