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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (5): 893-896    DOI: 10.3785/j.issn.1008-973X.2010.05.010
自动化技术、计算机技术     
广义形态滤波器在轴心轨迹提纯中的应用
张文斌1,2, 周晓军1, 李俊生2, 沈路1, 林勇1, 杨先勇1
1.浙江大学 现代制造工程研究所,浙江 杭州 310027； 2.红河学院 机械工程及自动化系,云南 蒙自 661100
Purification of rotor center’s orbit based on generalized
morphological filter
ZHANG Wenbin1,2, ZHOU Xiaojun1, LI Junsheng2, SHEN Lu1,
LIN Yong1, YANG Xianyong1
1. Institute of Modern Manufacturing Engineering, Zhejiang University, Hangzhou 310027, China;
2. Department of Mechanical Engineering and Automation, Honghe University, Mengzi 661100, China
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摘要：

针对汽轮发电机组轴心轨迹的提纯问题,提出采用不同结构元素级联而成的广义形态滤波器来实现轴心轨迹提纯的新方法.根据待处理信号的形状特点,选用正弦形结构元素构造广义开闭和闭开组合形态滤波器.通过仿真得到5种旋转机械常见故障类型的轴心轨迹图形,并在其中加入周期脉冲和随机噪声,使轴心轨迹图形受到不同程度的噪声干扰,再利用广义组合形态滤波器进行提纯处理.将广义组合形态滤波器用于实测汽轮发电机组转子轴心轨迹的提纯中.仿真计算和实测轴心轨迹的提纯证明,广义组合形态滤波器的效果优于传统组合形态滤波器.
Abstract:

A novel approach was proposed based on the generalized morphological filter cascaded by different structure elements in order to purify the rotor center’s orbit of turbine generator unit. The sine structure element was selected to cascade the generalized openclosing and closeopening combined morphological filter based on the shape feature of pending signal. Five different rotor center’s orbits of rotating machinery were simulated with pulse interference and white noises, which added the noise background for these rotor center’s orbits. Then the generalized morphological filter was used to eliminate the interferences. The method was used to purify the practical example. Simulation and practical results show that the generalized morphological filter has better performance compared with the traditional morphological filter.
出版日期: 2012-03-19
:  TP 391  
通讯作者: 周晓军,男,教授.     E-mail: sky@cmee.zju.edu.cn
作者简介: 张文斌（1981—）,男,云南建水人,博士生,从事车辆检测与信号处理研究.E-mail: georgezwb@sohu.com
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引用本文:

张文斌, 周晓军, 李俊生, 沈路, 林勇, 杨先勇. 广义形态滤波器在轴心轨迹提纯中的应用[J]. J4, 2010, 44(5): 893-896.

ZHANG Wen-Bin, ZHOU Xiao-Jun, LI Dun-Sheng, CHEN Lu, LIN Yong, YANG Xian-Yong. Purification of rotor center’s orbit based on generalized
morphological filter. J4, 2010, 44(5): 893-896.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.05.010    或    http://www.zjujournals.com/eng/CN/Y2010/V44/I5/893

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