中国机械工程2018，Vol.29Issue(12)：1398-1404,7.DOI:10.3969/j.issn.1004-132X.2018.12.003
混沌奇异谱特性研究及在滚动轴承故障诊断中的应用
Study on Characteristics of Chaotic Singular Spectrum and Applications in Rolling Bearing Fault Diagnosis
摘要
Abstract
A new metric of chaos space structure—chaotic singular spectrum was researched and an early fault recognition algorithm for rolling bearings was proposed based on chaotic singular spectral fea-ture extraction.First,the singular spectrum discrete form was presented,and when studying the stability of singular spectrum,logarithmic function was introduced to observe the effects of the deviation on singu-lar spectral values more sensitively.Then,it was proved from the perspective of geometric space that the singular spectrum was a description of spatial geometry based on variance maximization,which shown that the chaotic singular spectrum was a quantitative description of spatial structure of chaotic attractor and had certain anti-noise interference ability.Numerical verifications of Lorenz system prove the stabili-ty of chaotic singular spectrum and strong anti-noise performance. After experiments, the effectiveness and practicability of this method was verified.关键词
轴承故障特征/混沌奇异谱/稳定性/抗噪声能力/故障诊断Key words
bearing fault characteristic/chaotic singular spectrum/stability/anti-noise ability/fault diagnosis分类
信息技术与安全科学引用本文复制引用
张淑清,贺朋,左一格,陈荣飞,张赟,刘婉,姜万录..混沌奇异谱特性研究及在滚动轴承故障诊断中的应用[J].中国机械工程,2018,29(12):1398-1404,7.基金项目
国家自然科学基金资助项目(51475405) （51475405）
国家重点研发计划资助项目(2018YFB0905504) （2018YFB0905504）
河北省自然科学基金资助项目(E2018203439, E2018203339) （E2018203439, E2018203339）
河北省大智移云应用专项项目(18211833D) （18211833D）
