Volume 36 Issue 3
Mar.  2021
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LIU Yanxu, LIU Baoguo, FENG Wei. Vibration responses analysis for double disks rotor system with uncertainties[J]. Journal of Aerospace Power, 2021, 36(3): 488-497. doi: 10.13224/j.cnki.jasp.2021.03.005
Citation: LIU Yanxu, LIU Baoguo, FENG Wei. Vibration responses analysis for double disks rotor system with uncertainties[J]. Journal of Aerospace Power, 2021, 36(3): 488-497. doi: 10.13224/j.cnki.jasp.2021.03.005
shu

Vibration responses analysis for double disks rotor system with uncertainties

doi: 10.13224/j.cnki.jasp.2021.03.005
  • 1.

    School of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou 450001,China

  • 2.

    Henan Key Laboratory for Superabrasive Grinding Equipment,Henan University of Technology,Zhengzhou 450001,China

  • Received Date: 2020-07-12
  • Publish Date: 2021-03-28
    Abstract
  • The nonparametric method based on the maximum entropy method of random matrix was used to model the dynamics of uncertain rotor system. The effects of model uncertainties and parametric uncertainties on the fluctuation of natural frequencies of an uncertain double disk rotor system were studied with nonparametric method. The sensitivity of vibration responses of this system to model uncertainties and parametric uncertainties in different speed ranges was studied. Thus, the modeling errors that cannot be considered by parametric methods were taken into account. The results showed that: the effects of model and parametric uncertainties on system natural frequency fluctuation were different. For variation coefficient 0.04 of elastic modulus of rotating shaft, the first-order natural frequency had 1.19% and 3.58% fluctuation, and the second-order natural frequency fluctuated by 1.82% and 3.64%; for variation coefficient 0.04 of support stiffness, the first-order natural frequency had 0.01% and 6.17% fluctuations, and the second-order natural frequency fluctuated by 0.68% and 6.18%, respectively. The sensitivity of vibration responses of the rotor system to the two kinds of uncertainties was related to speed ranges: within the range of lower than 120 rad/s and upper than 430 rad/s, the system responses were not sensitive to the two kinds of uncertainties; within the range of 120-200 rad/s and 270-430 rad/s, the effects of model uncertainties on the response fluctuation were greater than those of parametric uncertainties. The research results can provide a theoretical reference for the prediction of random responses of complex rotor systems.

     

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  • [1]
    王存.基于切比雪夫多项式展开的转子动力特性区间分析［J］.航空动力学报,2020,35(4):757-765. WANG Cun.Interval analysis of rotor dynamic characteristics based on Chebyshev polynomials expansion［J］.Journal of Aerospace Power,2020,35(4):757-765.(in Chinese)
    [2]
    LIU Shuguo,WANG Jun,HONG Jie,et al.Dynamics design of the aero-engine rotor joint structures based on experimental and numerical study［C］//Proceedings of ASME Turbo Expo:Power for Land,Sea and Air.Glasgow,UK:ASME,2010:49-60.
    [3]
    郝勇,陈萌,洪杰,等.基于泰勒展开法的转子系统动力特性区间分析方法［J］.航空动力学报,2014,29(3):571-577. HAO Yong,CHEN Meng,HONG Jie,et al.Interval analysis method of rotordynamics based on Taylor expansion method［J］.Journal of Aerospace Power,2014,29(3):571-577.(in Chinese)
    [4]
    SOIZE C.Stochastic modeling of uncertainties in computational structural dynamics:recent theoretical advances［J］.Journal of Sound and Vibration,2013,332(10):2379-2395.
    [5]
    CAPILLON R,DESCELIERS C,SOIZE C.Uncertainty quantification in computational linear structural dynamics for viscoelastic composite structures［J］.Computer Methods in Applied Mechanics and Engineering,2016,305(15):154-172.
    [6]
    游震洲,黄其祥,王锋,等.转子-基础系统的随机不确定建模与振动分析［J］.航空动力学报,2016,31(1):1-9. YOU Zhenzhou,HUANG Qixiang,WANG Feng,et al.Random uncertainty modeling and vibration analysis of rotor-foundation system［J］.Journal of Aerospace Power,2016,31(1):1-9.(in Chinese)
    [7]
    ALI Y,MAHMOOD H S.Development and comparison of two new methods for quantifying uncertainty in analysis of flow through rockfill structures［J］.Iranian Journal of Science and Technology:Transactions of Civil Engineering,2018,43(9):277-288.
    [8]
    DIMENTBERG M F.Vibration of a rotating shaft with randomly varying internal damping［J］.Journal of Sound and Vibration,2005,285(3):759-765.
    [9]
    傅超,任兴民,杨永锋,等.正交多项式在不确定转子动态响应计算中的应用及对比分析［J］.航空动力学报,2018,33(9):2228-2234. FU Chao,REN Xingmin,YANG Yongfeng,et al.Application and comparative analysis of orthogonal polynomials in uncertain rotor dynamic response calculation［J］.Journal of Aerospace Power,2018,33(9):2228-2234.(in Chinese)
    [10]
    DAOUK S,LOUF F,DORIVAL O,et al.Uncertainties in structural dynamics:overview and comparative analysis of methods［J］.Mechanics and Industry,2015,16(4):404.
    [11]
    GAN C B,WANG Y H,YANG S X,et al.Nonparametric modeling and vibration analysis of uncertain Jeffcott rotor with disc offset［J］.International Journal of Mechanical Sciences,2014,78(1):126-134.
    [12]
    MURTHY R,TOMEI J C,WANG X Q,et al.Nonparametric stochastic modeling of structural uncertainty in rotor dynamics:unbalance and balancing aspects［J］.Journal of Engineering for Gas Turbines and Power,2014,136(6):1-12.
    [13]
    GAN C B,WANG Y H,YANG S X.Nonparametric modeling on random uncertainty and reliability analysis of a dual-span rotor［J］.Journal of Zhejiang University:Science A (Applied Physics and Engineering),2018,19 (3):189-202.
    [14]
    CAPILLON R,DESCELIERS C,SOIZE C.Model uncertainties in computational viscoelastic linear structural dynamics［J］.Procedia Engineering,2017,199(9):1210-1215.
    [15]
    OHAYON R,SOIZE C.Advanced computational vibroacoustics:reduced-order models and uncertainty quantification［M］.Cambridge,UK:Cambridge University Press,2014.
    [16]
    SOIZE C.Maximum entropy approach for modeling random uncertainties in transient elastodynamics［J］.The Journal of the Acoustical Society of America,2001,109(5):1979-1996.
    [17]
    MIGNOLET M P,SOIZE C.Stochastic reduced order models for uncertain geometrically nonlinear dynamical systems［J］.Computer Methods in Applied Mechanics and Engineering,2008,197(45/46/47/48):3951-3963.
    [18]
    SONG P C,MIGNOLET M P.Reduced order model based uncertainty modeling of structures with localized response［J］.Probabilistic Engineering Mechanics,2018,51(1):42-55.
    [19]
    CELAREC D,DOLSEK M.The impact of modeling uncertainties on the seismic performance assessment of reinforced concrete frame buildings［J］.Engineering Structures,2013,52(7):340-354.
    [20]
    MIGNOLET M P,SOIZE C.Nonparametric stochastic modeling of linear systems with prescribed variance of several natural frequencies［J］.Probabilistic Engineering Mechanics,2008,23(2/3):267-278.
    [21]
    CAPIEZ-LERNOUT E,SOIZE C.Nonparametric modeling of random uncertainties for dynamic response of mistuned bladed disks［J］.Journal of Engineering for Gas Turbines and Power,2004,126(11):610-618.
    [22]
    MA H,LI H,NIU H,et al.Nonlinear dynamic analysis of a rotor-bearing-seal system under two loading conditions［J］.Journal of Sound and Vibration,2013,332 (23):6128-6154.
    [23]
    戎海武,王向东,黄勇,等.有界随机噪声激励下碰撞系统的稳定性［J］.应用力学学报,2015,32(5):750-755. RONG Haiwu,WANG Xiangdong,HUANG Yong,et al.Stability of a single-degree-of-freedom linear vibriompact system under boundary random noise excitation［J］.Chinese Journal of Applied Mechanics,2015,32(5):750-755.(in Chinese)
    [24]
    CAPIEZ-LERNOUT E,PELLISSETTI M,PRADLWARTER H,et al.Data and model uncertainties in complex aerospace engineering systems［J］.Journal of Sound and Vibration,2006,295(8):923-938.
    [25]
    SOIZE C.Uncertainty quantification in computational structural dynamics and vibroacoustics［M］.Berlin:Springer International Publishing,2017.
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