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中文摘要：
在非平稳状态下的机电系统故障诊断与趋势预测中,正确分析系统的当前状态是一个必经环节.基于EMD的信号分析方法在分析非平稳信号中有明显的优势.阐述了基于EMD非平稳信号分析方法,并对其进行编程实现.同时进行了经验模态分解中抑制端点效应的研究.从软、硬件方面设计和实现了“非平稳状态下的机电系统状态信号分析集成系统”.为构建开放式、柔性化状态分析和趋势预测系统提供了基础.
英文摘要：
In the fault diagnosis and trend prediction of mechanical and electrical system under non stationary states, proper analyzing current states of the system is a necessity process. Signal analytic methods based on EMD has obvious advantages in the non-stationary signal analyzing. This paper elaborates signal analytic methods based on EMD and their programming realization. Meanwhile the article also researches repressing effect of endpoint in EMD. A system named ＂signal analysis integrated system in non-stationary condition analysis of mechanical and electrical system＂ is designed and run both in hardware and in software, which provides the foundation for constructing an open, soft-analysis on states and trend prediction system.
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