Nonlinear dynamics of one disk asymmetrical rotor supported by two journal bearings

被引：0
作者：
K. V. Avramov
O. V. Borysiuk
机构：
[1] National Academy of Sciences of Ukraine,Department of Nonstationary Vibrations, Podgorny Institute for Mechanical Engineering Problems
[2] National Technical University “KhPI”,Department of Gas and Fluid Mechanics
来源：
Nonlinear Dynamics | 2012年 / 67卷
关键词：
Fluid film; Reynolds’ equation; Self-sustained vibrations; Nonlinear modes; Frequency response;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Asymmetrical one disk rotor interacting with fluid films of short journal bearings is considered. Gyroscopic moments acting on a disk are taken into account. The forces of the journal bearing fluid film are derived analytically. The system of four nonlinear ordinary differential equations is obtained to study the rotor vibrations. The origination of self-sustained vibrations of rotor is studied by means of Shaw–Pierre nonlinear modes. The harmonic balance method is applied to study the self-sustained vibrations with large amplitudes.
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页码：1201 / 1219
页数：18
相关论文
共 84 条
  • [1] Zhang X.Y.(1992)On site testing and analysis of the oil whirl phenomena in national made 200 MW stream turbine generator systems Power Ind. 12 32-37
  • [2] Akers A.(1969)Pressure due inertia in a journal bearing J. Mech. Eng. Sci. 1 17-25
  • [3] Safar M.Z.S.(1972)Research note: a variational solution of the 120-degree partial journal bearing J. Mech. Eng. Sci. 3 3-15
  • [4] Szeri A.Z.(1961)Dynamical properties of journal bearing oil film Izv. Akad. Nauk SSSR, Mech. Mech. Eng. 14 65-80
  • [5] Poznjak E.L.(1960)Eigenfrequencies of rotor-bearing system Izv. Akad. Nauk SSSR, Mech. Mech. Eng. 3 19-27
  • [6] Olimpiev V.I.(1974)Static and dynamic properties of short journal bearing oil film Din. Prochn. Mash. 16 109-114
  • [7] Karintsev I.B.(1974)On effect of inertia of oil film on stability of rotors in short journal bearing Din. Prochn. Mash. 24 15-19
  • [8] Shul’genko N.G.(1973)Stability of vibrations of loaded rotors in short journal bearing Mashinovedenie 4 21-28
  • [9] Karintsev I.B.(1976)Forced vibrations of rotors in journal bearings Sov. Appl. Mech. 11 43-54
  • [10] Shul’genko N.G.(1986)Whirl and whip-rotor/bearing stability problems J. Sound Vib. 110 443-462
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