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| 基于模型的转子系统不平衡量的估计 | |
| 引用本文： | 李常有,徐敏强,郭耸,王跃武,王日新,高晶波.基于模型的转子系统不平衡量的估计[J].航空动力学报,2009,24(7):1530-1536. |
| 作者姓名： | 李常有 徐敏强 郭耸 王跃武 王日新 高晶波 |
| 作者单位： | 1. 哈尔滨工业大学航天学院,哈尔滨,150001 2. 哈尔滨工程大学计算机科学与技术学院,哈尔滨,150001 3. 东北大学机械工程与自动化学院,沈阳,110004 |
| 基金项目： | 国家自然科学基金(10772061);;黑龙江省自然科学基金(ZJG0704) |
| 摘 要： | 采用基于模型的方法对转子系统的不平衡量进行估计,首先记录初始状态下的振动信号,然后根据实时测得的不平衡响应信号,得出差值振动信号,联立转子系统的动力学方程,得出不平衡等效载荷,根据等效载荷,得出不平衡的位置、相位及大小.采用模态扩展技术实现由有限几个点的振动响应获取所需点上的响应.由于噪声的影响,提出了基于高斯小波的降噪方法.仿真与实验结果表明,这一方法能够比较准确地估计出转子系统的不平衡量. |
| 关 键 词： | 模型 不平衡 状态估计 转子系统 模态扩展技术 |
| 收稿时间： | 7/2/2008 12:00:00 AM |
| 修稿时间： | 2008/10/19 0:00:00 |
Estimation of the unbalance magnitude of rotor system based on model |
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| LI Chang-you,XU Min-qiang,GUO Song,WANY Yue-wu,WANY Ri-xin and GAO Jing-bo.Estimation of the unbalance magnitude of rotor system based on model[J].Journal of Aerospace Power,2009,24(7):1530-1536. | |
| Authors: | LI Chang-you XU Min-qiang GUO Song WANY Yue-wu WANY Ri-xin and GAO Jing-bo |
| Institution: | 1.School of Astronautics;Harbin Institute of Technology;Harbin 150001;China;2.School of Computer Science and Technology;Harbin Engineering University;3.School of Mechanical Engineering and Automation;Northeastern University;Shenyang 110004;China |
| Abstract: | The approach based on model was employed to estimate the unbalance magnitude of rotor system in this paper.The original vibration signal of rotor system must be recorded,then,the differences between online detected unbalance responses and original signals were computed.The equivalent loads on each node were calculated through dynamics equation of rotor system with the differences.The magnitude,location and phase of the unbalance were acquired according to the equivalent load.The vibration responses of the n... |
| Keywords: | model unbalance condition estimation rotor system modal expansion technique |
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