Dynamic vibration absorber based instability vibration suppression of a rotor/seal system

被引：0
|
作者：
Xu Q. [1 ]
Niu J. [1 ]
Yao H. [2 ]
Zhao L. [3 ]
Wen B. [2 ]
机构：
[1] School of Mechanical Engineering, Shenyang University of Technology, Shenyang
[2] School of Mechanical Engineering and Automation, Northeastern University, Shenyang
[3] Shenyang Blower Group Co., Ltd., Shenyang
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 14期
关键词：
Dynamic vibration absorber(DVA); Instability threshold; Rotor dynamics; Vibration suppression;
D O I：
10.13465/j.cnki.jvs.2020.14.033
中图分类号：
学科分类号：
摘要：
The dynamic vibration absorber (DVA) was proposed to suppress the instability vibration of a rotor/seal system. A model for the rotor/seal system with DVA was established. A numerical method was utilized to obtain the nonlinear characteristics of the rotor/seal system without and with DVA. The critical stability condition was obtained by the Routh-Hurwitz criterion. Then the genetic algorithm was applied to optimize the DVA parameters, and the stability was discussed. The results show that the DVA is effective to change the instability vibration frequency and threshold of the rotor/seal system. The instability vibration can be completely suppressed within a certain range of rotating speed. The DVA can reduce the amplitude of the instability vibration in some range of rotating speed, at which the instability vibration is partially suppressed. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：242 / 250
页数：8
相关论文
共 27 条
  • [1] WANG Xuejun, GE Liling, TAN Jiajian, The development process of centrifugal compressor and the future technology development trend in China, Compressor Blower & Fan Technology, 3, pp. 65-77, (2015)
  • [2] (2007)
  • [3] CAO Shuqian, CHEN Yushu, A review of modern rotor/seal dynamics, Engineering Mechanics, 26, pp. 68-79, (2009)
  • [4] ZHAO Qian, XU Qi, YAO Hongliang, Et al., Stability of a multi-span rotor system with fluid-induced self-excited vibration, Journal of Vibration and Shock, 35, 5, pp. 196-200, (2016)
  • [5] MUSZYNSKA A, BENTLY D E., Anti-swirl arrangements prevent rotor/seal instability, Journal of Vibration, Acoustics, Stress, and Reliability in Design, 111, 2, pp. 156-162, (1989)
  • [6] LE D, TSUEI C, PAN M., Optimally controlled anti-swirl injection to eliminate whirl in fluid-film bearings of rotary machinery, International Journal of Mechanical Sciences, 98, pp. 157-168, (2015)
  • [7] SUN Dan, WANG Shuang, AI Yanting, Et al., Theoretical and experimental research on the performance of anti-swirl flow for the static and dynamic characteristics of seals, Journal of Mechanical Engineering, 52, 3, pp. 101-109, (2016)
  • [8] CHILDS D, ELROD D, HALE K., Annular honeycomb seals: test results for leakage and rotordynamic coefficients
  • [9] comparisons to labyrinth and smooth configurations, Journal of Tribology, 111, 2, pp. 293-301, (1989)
  • [10] ERTAS B H, DELGODO A, VANNINI G., Rotordynamic force coefficients for three types of annular gas seals with inlet preswirl and high differential pressure ratio, Journal of Engineering for Gas Turbines and Power-Transactions of the ASME, 134, 4, (2012)
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