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

发布时间：2018-02-21 10:18

本文关键词： 传动系统高阶累积量劣化趋势特征提取　出处：《电子测量与仪器学报》2017年01期 　论文类型：期刊论文

【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。
[Abstract]:Rotating machinery is the most widely used mechanical equipment in production, its transmission system is an important part of rotating machinery, its safe and stable operation has an important impact on economy and society. In this paper, a method for extracting the parameters of operational stability deterioration of rotating mechanical transmission system is presented, and the high order cumulant theory is used. From the point of view of transition between different fault states, this paper describes the deterioration evolution process of transmission system from stable operation state to unstable operation state, and puts forward the concept of "deterioration evolution matrix". On this basis, the mean value of stability deterioration is defined. The stability deterioration variance and other state deterioration trend are characterized by the experimental results based on this method. The results show that the method can describe the overall trend of the system running state. It can be used as a parameter to characterize the running stability of rotating mechanical transmission system.
【作者单位】：北京信息科技大学现代测控技术教育部重点实验室;
【基金】：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
【分类号】：TH132;TH17

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