王宪明;杨枫;王望;雷娜;赵海峰;

• 1:东北石油大学机械科学与工程学院

• 2:北京化工大学机电工程学院

• 3:中国石油天然气股份有限公司大庆石化公司

摘要(Abstract)：

往复压缩机振动信号具有复杂的多源冲击特性,表现较强的非平稳性,传统的时频分析方法难以提取有效的故障特征.以傅氏变换为基础的传统频率概念和以希尔伯特变换为基础的瞬时频率概念存在固有缺陷,提出一种广义局部频率的概念,并结合自适应峰值分解方法,实现信号时频分布的构造途径;与HHT时频分析方法进行仿真对比,并应用到往复压缩机振动信号故障特征提取.结果表明,基于自适应峰值分解的广义局部频率方法有效揭示往复压缩机不同故障的多源冲击振动信号时频特征,为往复压缩机故障诊断提供一种新的手段.

关键词(KeyWords)：自适应峰值分解;广义局部频率;时频分析;往复压缩机;故障诊断

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(51175316);; 高等学校博士点专项科研基金项目(20103108110006)

作者(Author):王宪明;杨枫;王望;雷娜;赵海峰;

Email:

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