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| 基于时频分析的某惯性器件测试与故障诊断 | |
| 引用本文： | 夏启兵,胡昌华,周涛,叶雪梅. 基于时频分析的某惯性器件测试与故障诊断[J]. 振动、测试与诊断, 2003, 23(1): 18-20 |
| 作者姓名： | 夏启兵 胡昌华 周涛 叶雪梅 |
| 作者单位： | 第二炮兵工程学院,西安,710025 |
| 基金项目： | 国家自然科学基金重点课题资助项目 (编号 :6993 10 40 ) |
| 摘 要： | 简要介绍了时频分布检测信号的基本原理，并基于Pseudo-Margenau-Hill(PMH)时频分布分析了某横法向稳定仪在正常和故障状态下所采集到的两组数据。实验结果分析表明，PMH分布可提取横法向稳定仪在故障状态时的信号时频特征，确定故障发生的时刻。 |
| 关 键 词： | 时频分布 惯性器件 故障诊断 傅里叶变换 PMH分布 |
| 修稿时间： | 2002-05-08 |
Testing and Fault Diagnosis of Intertia Component Based on Time-Frequency Analysis |
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| Xia Qibing Hu Changhua Zhou Tao Ye Xuemei. Testing and Fault Diagnosis of Intertia Component Based on Time-Frequency Analysis[J]. Journal of Vibration,Measurement & Diagnosis, 2003, 23(1): 18-20 | |
| Authors: | Xia Qibing Hu Changhua Zhou Tao Ye Xuemei |
| Abstract: | A brief introduction is made to the basic principle of detecting a fault signal using tims-frequency distribution analysis.Two groups of tested data acquired from normal and abnormal conditions of a lateral-normal stabilizer are analyzed by using Pseudo-Margenau-Hill Distribution(PMHD).The results of the analysis indicate that the time-frequency features of a signal under abnormal conditions and the time when a fault happens can be extracted by PMHD analysis. |
| Keywords: | time-frequency distribution inertia component fault diagnosis FFT PMH distribution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |