ASTFABSS 方法及其在齿轮箱复合故障诊断中的应用OA北大核心CSCDCSTPCD
ASTFABSS Method and Its Applications in Composite Fault Diagnosis for Gearbox
自适应最稀疏时频分析(adaptive and sparsest timefrequency analysis,ASTFA)方法以分解得到的单分量个数最少为优化目标,以单分量的瞬时频率具有物理意义为约束条件,使得到的分量更加合理；结合盲源分离,提出了一种基于 ASTFA 的盲源分离方法并应用于齿轮箱复合故障诊断中。该方法首先利用 ASTFA 将单通道源信号进行分解,然后利用占优特征值法进行源数估计,根据源数重组观测信号,最后对观测信号进行盲源…查看全部>>
Considering ASTFA method for decomposing the least number of single component as the optimization goal,and taking the physically meaningful instantaneous frequency of single compoG nent as constraint conditions,to make the components more reasonable,combining BSS,a BSS methG od was proposed based on the ASTFA,which was used to carry out composite fault diagnosis of the gearbox.In this method,the singlechannel source signals were decomposed by AFTFA,then th…查看全部>>
杨宇;何知义;李紫珠;程军圣
湖南大学汽车车身先进设计制造国家重点实验室，长沙，410082湖南大学汽车车身先进设计制造国家重点实验室，长沙，410082湖南大学汽车车身先进设计制造国家重点实验室，长沙，410082湖南大学汽车车身先进设计制造国家重点实验室，长沙，410082
机械制造
自适应最稀疏时频分析盲源分离齿轮箱复合故障诊断
adaptive and sparsest timefrequency analysis (ASTFA)blind source separation (BSS)gearboxcomposite fault diagnosis
《中国机械工程》 2015 (15)
自适应最稀疏时频分析方法及其在机械故障诊断中的应用
2051-2055,2061,6
国家自然科学基金资助项目(51375152,51175158)
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