电子测量与仪器学报

蒋章雷,徐小力.旋转机械传动系统运行稳定性劣化表征参数提取方法研究[J].电子测量与仪器学报,2017,31(1):155-160

旋转机械传动系统运行稳定性劣化表征参数提取方法研究

Feature parameter extraction method faced to running stability deterioration of rotating machinery transmission system

DOI：10.13382/j.jemi.2017.01.023

中文关键词: 传动系统高阶累积量劣化趋势特征提取

英文关键词:transmission system higher order cumulant deterioration trend feature extraction

基金项目:国家自然科学基金(51275052)、北京市自然科学基金重点项目(3131002)、北京市教委科研计划项目(KM201611232020)资助

作者	单位
蒋章雷	北京信息科技大学现代测控技术教育部重点实验室北京100192
徐小力	北京信息科技大学现代测控技术教育部重点实验室北京100192

Author	Institution
Jiang Zhanglei	Key Laboratory of Modern Measurement & Control Technology，Ministry of Education, Beijing Information Science and Technology University, Beijing 100192, China
Xu Xiaoli	Key Laboratory of Modern Measurement & Control Technology，Ministry of Education, Beijing Information Science and Technology University, Beijing 100192, China

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中文摘要:

旋转机械是生产中应用最广泛的机械设备，其传动系统是旋转机械的重要组成部分，它的安全稳定运行对经济和社会具有重要影响。以转子实验台典型故障为研究对象，提出旋转机械传动系统运行稳定性劣化表征参数的提取方法。采用高阶累积量理论，从不同故障状态之间迁移的角度对传动系统稳定运行状态劣化为非稳定运行状态的劣化演化过程进行描述，提出“劣化演化矩阵”的概念。在此基础上，定义稳定性劣化均值、稳定性劣化方差等状态劣化趋势的表征参数，并进行了基于该方法的实验验证，结果表明，该方法可以描述系统运行状态的整体趋势，可以作为旋转机械传动系统运行稳定性的表征参数。

英文摘要:

Rotating machinery is the most widely used mechanical equipment in production, and its transmission system is an important part of the rotating machinery. Whether the rotating machinery transmission system running in safe and stable state has an important impact on the economy and society, so, researched on running stability deterioration of rotating machinery is significant. Rotor test rig has typical transmission structure of rotating machinery, and feature parameter extraction method faced to running stability deteriorationof its transmission system has been proposed.This paper describes the evolutionary trajectory of stable running state deterioratedto the unstable running state, and deterioration evolutionary matrix has been proposed based on higher order cumulant method. A feature parameter extractionhas been used to depict evolutionary track faced to running stability deterioration of rotating machinery based on characterization parameters of the state deterioration trend such as mean value of stability deterioration and varianceof stability deterioration. The vibration data of the actual operating state of rotor test rigare collected, and experimental verification is carried out based on the method.The results show that this method can describe the overall trend of the operation statesface to the transmission system of the rotating machinery.

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