Bearing dynamic parameters identification for a sliding bearing-rotor system with uncertainty

Bearing dynamic parameters identification for a sliding bearing-rotor system with uncertainty
复制标题

不确定性滑动轴承-转子系统的轴承动态参数辨识

DOI:
10.1080/17415977.2017.1377708
复制
发表时间:
2018-08
影响因子:
1.3
通讯作者:
Liu Jie
Liu Jie
中科院分区:
工程技术4区
文献类型:
--
作者:
Mao Wengui;Li Jianhua;Huang Zhonghua;Liu Jie

文献摘要

参考文献

被引文献

相似文献

摘要滑动轴承-转子系统的轴承动力学参数是影响其吸振性能的重要因素。基于不平衡响应的轴承动态参数识别是一种有价值的方法。然而,在工程中,由于结构的复杂性和制造或测量误差,不平衡参数是不确定的。因此,研究一种有效的方法来估计轴承动态参数的不确定性的不平衡参数显得尤为重要和必要。基于动载荷识别方法和区间分析方法,提出了一种稳定识别不确定不平衡参数下轴承动态参数界的逆方法,该方法将轴承动态参数识别问题转化为油膜力重构问题,将油膜支承作为转子载荷边界条件;需要利用区间分析计算中点油膜力和对各个不确定不平衡参数的一阶导数,最终根据区间数学来确定轴承动态参数的界限。最后通过数值算例验证了该方法的有效性和鲁棒性。
Abstract Bearing dynamic parameters of a sliding bearing-rotor system are important factors to the vibration absorbing characteristics. It is a valuable method to identify bearing dynamic parameters based on the unbalance response. Nevertheless, in Engineer, the unbalance parameters are uncertain due to the structural complexity and manufacturing or measuring error. Thus, developing an efficient method to estimate the bearing dynamic parameters for the uncertain unbalance parameters seems more important and necessary. This paper presented an inverse method for identifying stably the bounds of bearing dynamic parameters with uncertain unbalance parameters based on dynamic load identification method and the interval analysis .In the method, bearing dynamic parameters identification problem is formulated as the oil film force reconstruction by considering the oil film supports as rotor load boundary conditions; the midpoint oil film force and the first derivative to each uncertain unbalance parameter need be calculated with the interval analysis; the bounds of bearing dynamic parameters can be finally identified based on the interval mathematics. Finally, the efficiency and robustness of the proposed method are verified by a numerical example.
DOI: 10.1061/(asce)be.1943-5592.0000911
发表时间: 2016-02
影响因子: 3.6
作者:
Qiling Zou;L. Deng;Chao Jiang
通讯作者: Qiling Zou;L. Deng;Chao Jiang
DOI: 10.1016/j.mechatronics.2014.02.010
发表时间: 2014-04
期刊: Mechatronics
影响因子: 3.3
作者:
R. Tiwari;Avinash Chougale
通讯作者: R. Tiwari;Avinash Chougale
DOI: 10.1016/j.ymssp.2015.09.016
发表时间: 2016-03
影响因子: 8.4
作者:
L. Theisen;H. Niemann;I. Santos;R. Galeazzi;M. Blanke
通讯作者: L. Theisen;H. Niemann;I. Santos;R. Galeazzi;M. Blanke
DOI: 10.1016/j.cam.2015.04.011
发表时间: 2015-11
期刊: J. Comput. Appl. Math.
影响因子: --
作者:
Xiao-Juan Yang;Li Wang
通讯作者: Xiao-Juan Yang;Li Wang
DOI: 10.1201/9780203494486
发表时间: 2003-06
期刊: --
影响因子: --
作者:
Gui-rong Liu;Xu Han
通讯作者: Gui-rong Liu;Xu Han