FAN NON-SYNCHRONOUS FORCED VIBRATION UNDER CROSSWIND

被引：0
|
作者：
Chennuru, Venkata Y. T. [1 ]
Corral, Roque [1 ]
Rodriguez-Blanco, Salvador [1 ]
Vandati, Mehdi [2 ]
Zhao, Fanzhou [2 ]
机构：
[1] Univ Politecn Madrid, Madrid, Spain
[2] Imperial Coll London, London, England
来源：
PROCEEDINGS OF ASME TURBO EXPO 2024: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, GT2024, VOL 10A | 2024年
关键词：
Non-synchronous vibration; forced vibration; crosswind; CFD; intake separation; distortion;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, a new aeroelastic phenomena for fans, referred to as Non-Synchronous Forced Vibration (NSFV), is presented. This type of aeroelastic instability can occur at high crosswind conditions when the flow at the intake lip separates and the disturbances caused by flow separation become unsteady. The results show that in presence of unsteady separation in the intake, the fan can experience non-synchronous frequency excitations, which can result in resonant response in modes that are not identified by the Campbell diagram. The findings are corroborated by aeroacoustic theories. To the best knowledge of authors this is the first time that fan forced response due to unsteady distortion is studied and the findings can unlock some of unexplained and unexpected vibrations experienced by engines.
引用
收藏
页数：13
相关论文
共 50 条
  • [21] On the non-synchronous rotation of binary systems
    LI ZhiXiong
    HUANG RunQian
    WANG ShuMin
    [J]. Science China(Physics,Mechanics & Astronomy), 2014, (06) : 1194 - 1200
  • [22] Evidence for non-synchronous rotation of Europa
    P. E. Geissler
    R. Greenberg
    G. Hoppa
    P. Helfenstein
    A. McEwen
    R. Pappalardo
    R. Tufts
    M. Ockert-Bell
    R. Sullivan
    R. Greeley
    M. J. S. Belton
    T. Denk
    B. Clark
    J. Burns
    J. Veverka
    [J]. Nature, 1998, 391 : 368 - 370
  • [23] Coherent Groups Identification under High Penetration of Non-Synchronous Generation
    Chamorro, Harold R.
    Ghandhari, Mehrdad
    Eriksson, Robert
    [J]. 2016 IEEE POWER AND ENERGY SOCIETY GENERAL MEETING (PESGM), 2016,
  • [24] ON THE MECHANISM OF SPIKE STALL INCEPTION AND NEAR STALL NON-SYNCHRONOUS VIBRATION IN AN AXIAL COMPRESSOR
    Moeller, Daniel
    Schiffer, Heinz-Peter
    [J]. PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, VOL 10A, PT I, 2020,
  • [25] Experimental and Numerical Investigation of Non-synchronous Blade Vibration Excitation in a Transonic Axial Compressor
    Wang, Songbai
    Wu, Yadong
    Chen, Yong
    Cao, Zhipeng
    [J]. JOURNAL OF THERMAL SCIENCE, 2024, 33 (02) : 602 - 610
  • [26] Investigation on the Flow Field Entropy Structure of Non-Synchronous Blade Vibration in an Axial Turbocompressor
    Zhang, Mingming
    Hou, Anping
    [J]. ENTROPY, 2020, 22 (12) : 1 - 17
  • [27] NON-SYNCHRONOUS VIBRATION OF A JEFFCOTT ROTOR DUE TO INTERNAL RADIAL CLEARANCE IN ROLLER BEARINGS
    Wu, Jing
    Legrand, Mathias
    Pierre, Christophe
    [J]. 8TH IFTOMM INTERNATIONAL CONFERENCE ON ROTOR DYNAMICS (IFTOMM ROTORDYNAMICS 2010), 2010, : 446 - 453
  • [28] On the non-synchronous rotation of binary systems?
    ZhiXiong Li
    RunQian Huang
    ShuMin Wang
    [J]. Science China Physics, Mechanics & Astronomy, 2014, 57 : 1194 - 1200
  • [29] Synchronous and Non-Synchronous Semelparity in Sibling Species of Pulmonates
    Nyumura, Nobuhiro
    Asami, Takahiro
    [J]. ZOOLOGICAL SCIENCE, 2015, 32 (04) : 372 - 377
  • [30] INVESTIGATION OF A COMPRESSOR ROTOR NON-SYNCHRONOUS VIBRATION WITH AND WITHOUT FLUID-STRUCTURE INTERACTION
    Gan, Jiaye
    Im, Hong-sik
    Espinal, Daniel
    Lefebvre, Alexis
    Zha, Ge-Cheng
    [J]. PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2014, VOL 7B, 2014,
12345