基于谱相关的齿轮振动监测技术研究

毕果 陈进

振动与冲击 ›› 2009, Vol. 28 ›› Issue (7) : 17-21.

PDF(2570 KB)
PDF(2570 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (7) : 17-21.
论文

基于谱相关的齿轮振动监测技术研究

  • 毕果1 陈进2
作者信息 +

The Study of Condition Monitoring Technology for Gear Vibration Based on Spectral Correlation

  • Guo Bi1, Jin Chen2
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文章历史 +

摘要

摘要:齿轮振动信号的特征循环频率具有谐频成分,谐频循环频率簇对应的谱线相关性综合反映了系统中的某种啮合振动或调制现象。以此理论为基础,本文提出了啮合振动监测因子和调制监测因子两种累积能量因子,利用单一传感器采集得到的信号,以全频段信息为依据,进行振动信息的抽取和剥离,实现针对性的齿轮振动监测。实例分析结果证实了基于谱相关的状态监测技术具有较高的灵敏性,能够初步判断系统中的故障所在。

Abstract

Abstract: Gear vibration signals are cyclostationary. Character cyclic frequencies of its spectral correlation density (SCD) function are harmonic clusters, whose basic frequencies traverse modulation frequencies and meshing frequencies of the system. Therefore, the information of the SCD for harmonic cyclic frequency clusters
is concentrated as accumulation energy factor (AEF) for gear precise condition monitoring in this paper, which named as meshing vibration monitoring factor and modulation monitoring factor separately. AEF can be employed to monitor certain vibration phenomena in gear transmission system, which is favorable for fault location determination. AEF extracts information from whole analysis frequency band, and it is superior at early weak fault identification. Experimental results in this paper verified the sensitivity and the practicability of AEF.

关键词

谱相关 / 累积能量因子 / 齿轮 / 状态监测 / 循环平稳

Key words

Spectral Correlation / Accumulation Energy Factor / Gear / Condition Monitoring / Cyclostationarity.

引用本文

导出引用
毕果 陈进. 基于谱相关的齿轮振动监测技术研究[J]. 振动与冲击, 2009, 28(7): 17-21
Guo Bi;Jin Chen. The Study of Condition Monitoring Technology for Gear Vibration Based on Spectral Correlation[J]. Journal of Vibration and Shock, 2009, 28(7): 17-21

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