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本科毕业设计（论文） 轴承故障数据处理与诊断 学 院 机电工程学院 专 业 包装工程 年级班别 2007级（2）班 学 号 学生姓名 指导教师 2011 年 6 月 摘 要 论文分析了轴承故障形式，针对一个轴承实验装置获得的数据，结合信号处理、数据分析等方面的知识，利用MATLAB软件对信号进行分析，提取其特征值。再对提出的特征值进行归一化处理和有效性检验，根据特征值的差异性和重复性原则，应用随机抽取值与因子值来检验特征值的有效性，能够满足故障诊断快速和准确的要求，适用于在线检测，具有实际应用价值。本文主要侧重于对故障数据的对比与分析进行描述。 关键词：轴承，故障诊断，MATLAB Abstract This paper analyzes the form of bearing fault.Using the knowledge of signal processing, data analysis and other aspects, the data which obtained from Bearing fault experiment device, the simple structures in the laboratory experiment device, can be extraction its eigenvalue analyzed by MATLAB software. Then put the characteristic value forward to normalize and validation. According to the diversity and the rule of repeatability characteristic value, the application value and the randomly value of factor can be used to test the validity of the characteristic values, which satisfy the fault diagnosis speed and contents the accuracy requirements. These analysis are much more suitable for online tasting and benefit to practical application. This essay mainly focuses on the comparison of failure data with analysis are described herein. Keywords: Bearing, Fault diagnosis, MATLAB