| 基于阶次小波包与粗糙集的轴承复合故障诊断 |
| |
| 引用本文： | 沈仁发,祁彦洁,康海英,郑海起,关贞珍. 基于阶次小波包与粗糙集的轴承复合故障诊断[J]. 轴承, 2009, 0(9) |
| |
| 作者姓名： | 沈仁发 祁彦洁 康海英 郑海起 关贞珍 |
| |
| 作者单位： | 1. 军械工程学院,火炮工程系,石家庄,050003
2. 徐州空军学院,基础部,江苏,徐州,221000 |
| |
| 基金项目： | 国家自然科学基金资助 |
| |
| 摘 要： | 针对齿轮箱启动过程中振动信号表现为非平稳非高斯特征,传统诊断方法诊断精度不高的现状,将阶次小波包和粗糙集理论引入到轴承的复合故障诊断中,利用计算阶次跟踪算法对瞬态振动信号进行重采样,采用小波包对该信号分解-重构,并对每个频段的能量进行归一化,构成一个特征向量,通过粗糙集理论得到清晰、简明的决策规则.并通过复合故障实例验证了此方法的有效性.
|
| 关 键 词： | 滚动轴承 复合故障诊断 小波包 粗糙集理论 阶次跟踪 |
Compound Fault Diagnosis of Bearing Based on Order Tracking and Wavelet Packet and Rough Sets |
| |
| SHEN Ren-fa,QI Yan-jie,KANG Hai-ying,ZHENG Hai-qi,GUAN Zhen-zhen. Compound Fault Diagnosis of Bearing Based on Order Tracking and Wavelet Packet and Rough Sets[J]. Bearing, 2009, 0(9) |
| |
| Authors: | SHEN Ren-fa QI Yan-jie KANG Hai-ying ZHENG Hai-qi GUAN Zhen-zhen |
| |
| Affiliation: | SHEN Ren-fa1,QI Yan-jie2,KANG Hai-ying1,ZHENG Hai-qi1,GUAN Zhen-zhen1(1.Department of Guns Engineering,Ordnance Engineering College,Shijiazhuang 050003,China,2.Dept.of Basic Courses,Xuzhou Air Force College,Xuzhou 221000,China) |
| |
| Abstract: | The vibration signals at start-up in the gearbox are non-stationary signals,and traditional ways of diagnosis have low precision.Order tracking and wavelet packet and rough sets theory are introduced in the compound-fault diagnosis of bearing.First,the vibration signals at start-up were resampled using computer order tracking arithmetic,and wavelet packet is used for equal angle distributed vibration signals decomposition and reconstruction.Second,energy distribution of every frequency band can be calculate... |
| |
| Keywords: | rolling bearing compound-fault diagnosis wavelet packet rough sets theory order tracking |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
