Estimation of critical speeds of a rotor supported on ball bearings

被引：1
|
作者：
Uday, Pavuluri [1 ]
Prabu, J. [1 ]
Solairaju, M. [2 ]
Shravankumar, C. [1 ]
Jegadeesan, K. [1 ]
Rao, T. V. V. L. N. [1 ]
机构：
[1] SRM Inst Sci & Technol, Dept Mech Engn, Kattankulathur, Tamil Nadu, India
[2] Combat Vehicles Res & Dev Estab, Avadi, Tamil Nadu, India
来源：
3RD INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING (ICAME 2020), PTS 1-6 | 2020年 / 912卷
关键词：
D O I：
10.1088/1757-899X/912/2/022033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work study of a rotor supported on ball bearings and containing a fatigue crack is carried out. The primary objective of the work is to obtain the load-distribution of the ball bearings from which the support stiffness in two transverse directions are obtained. The other objective is the rotor-dynamic analysis of a shaftsupported on these bearings. A mathematical model of a rigid rotorsupported on flexible bearings is considered for the purpose. Effects of bearing stiffness, damping and gyroscopic effects are included in the study. The governing equations of motion are obtained. The whirl frequencies of the rotor system are obtainedusing Eigen value formulation of the problem. A Campbell diagram is plotted which is used to obtain the critical speeds of the rotor system. These results are supported with the results from frequency response function plots.
引用
收藏
页数：9
相关论文
共 50 条
  • [41] Test and calculation of critical speeds of a rotor
    Cai, Jun
    Wang, Hong-Guang
    Shanghai Ligong Daxue Xuebao/Journal of University of Shanghai for Science and Technology, 2007, 29 (05): : 471 - 475
  • [42] GRAPHICAL DETERMINATION OF CRITICAL ROTOR SPEEDS
    ERNST, WB
    MACHINE DESIGN, 1970, 42 (05) : 169 - &
  • [43] Multi-objective optimization of a flexible rotor in magnetic bearings with critical speeds and control current constraints
    Shiau, TN
    Kuo, CP
    Hwang, JR
    JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 1997, 119 (01): : 186 - 195
  • [44] The whirling speeds of a loaded shaft supported in three bearings
    Jeftcott, HH
    PHILOSOPHICAL MAGAZINE, 1921, 42 (251): : 635 - 668
  • [45] Formation of EHL Film with Grease in Ball Bearings at Low Speeds
    Dong, Daming
    Komoriya, Tomonobu
    Endo, Toshiaki
    Kimura, Yoshitsugu
    JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS, 2012, 57 (08) : 568 - 574
  • [46] A model of spur gears supported by ball bearings
    Viadero, F.
    del Rincon, A. Fernandez
    Sancibrian, R.
    Garcia Fernandez, P.
    de Juan, A.
    COMPUTATIONAL METHODS AND EXPERIMENTAL MEASUREMENTS XIII, 2007, 46 : 711 - +
  • [47] Nonlinear excitation model of ball bearing waviness in a rigid rotor supported by two or more ball bearings considering five degrees of freedom
    Jang, G.H.
    Jeong, S.W.
    American Society of Mechanical Engineers, Tribology Division, TRIB, 2001, (24): : 1 - 10
  • [48] Nonlinear excitation model of ball bearing waviness in a rigid rotor supported by two or more ball bearings considering five degrees of freedom
    Jang, GH
    Jeong, SW
    JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 2002, 124 (01): : 82 - 90
  • [49] HYBRID GAS BEARINGS WITH CONTROLLED SUPPLY PRESSURE TO ELIMINATE ROTOR VIBRATIONS WHILE CROSSING SYSTEM CRITICAL SPEEDS
    Andres, Luis San
    Ryu, Keun
    PROCEEDINGS OF THE ASME TURBO EXPO 2008, VOL 1, 2008, : 641 - 649
  • [50] Hybrid gas bearings with controlled supply pressure to eliminate rotor vibrations while crossing system critical speeds
    Mechanical Engineering Department, Texas A and M University, College Station, TX 77843-3123, United States
    J. Eng. Gas Turbines Power, 2008, 6
12345