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| 经验模态分解停止准则及在故障诊断中的应用 | |
| 引用本文： | 黄骏,何永勇. 经验模态分解停止准则及在故障诊断中的应用[J]. 机械强度, 2011, 33(5) |
| 作者姓名： | 黄骏 何永勇 |
| 作者单位： | 清华大学精仪系摩擦学国家重点实验室,北京,100084 |
| 基金项目： | “十一五”国家科技支撑计划(2009BAG12A02); 国家自然科学基金(50975150)资助项目~~ |
| 摘 要： | 停止准则是决定经验模态分解能否完整准确地提取出信号的内禀模态函数的重要因素之一,文中在总结现有的标准偏差(standard deviation,SD)准则、G.Rilling准则和能量差跟踪法的基础上,提出新的结合G.Rilling准则和能量差跟踪法的停止准则,并对这些准则进行仿真和实测数据的比较验证,试验结果表明,文中提出的停止准则优于SD准则和G.Rilling准则,为故障诊断提供更可靠的依据。 |
| 关 键 词： | Hilbert-Huang变换 经验模态分解 停止准则 |
STUDY ON THE STOPPING CRITERION OF EMPIRICAL MODE DECOMPOSITION AND ITS APPLICATION IN FAULT DIAGNOSIS |
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| HUANG Jun,HE YongYong. STUDY ON THE STOPPING CRITERION OF EMPIRICAL MODE DECOMPOSITION AND ITS APPLICATION IN FAULT DIAGNOSIS[J]. Journal of Mechanical Strength, 2011, 33(5) | |
| Authors: | HUANG Jun HE YongYong |
| Affiliation: | HUANG Jun HE YongYong(The State Key Laboratory of Tribology,Department of Precision Instruments,Tsinghua University,Beijing 100084,China) |
| Abstract: | The stopping criterion is one of the important factors which determine the integrality and accuracy of the intrinsic mode functions(IMF) extracted by empirical mode decomposition(EMD).Firstly,the standard deviation(SD) criterion,the G.Rilling criterion and the method of tracking for energy difference(MTED) are discussed and summarized.Then,a new stopping criterion is proposed,which integrates the G.Rilling criterion and MTED.At last,the simulation and case study are given out to compare various stopping cri... |
| Keywords: | Hilbert-Huang transform(HHT) Empirical mode decomposition(EMD) Stopping criterion |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |