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| 小波包改进算法在柴油机振动分形诊断中的应用 | |
| 引用本文： | 王静,余世林,吴颖,曹阳. 小波包改进算法在柴油机振动分形诊断中的应用[J]. 农机化研究, 2007, 0(11): 170-172 |
| 作者姓名： | 王静 余世林 吴颖 曹阳 |
| 作者单位： | 镇江船艇学院,江苏,镇江,212003 |
| 摘 要： | 分形法诊断柴油机故障时,实际测取的柴油机振动信号中存在着许多干扰信息,利用改进的小波包分解和重构算法对原始信号进行降噪处理,再选择合适的嵌入维数,计算出的关联维数即能够反映系统的真实特性.实例分析表明,该算法准确可靠,可极大提高利用信号关联维数判断柴油机运行状态的准确性和可靠性. |
| 关 键 词： | 自动控制技术 故障诊断 试验 柴油机 振动信号 关联维数 小波包变换 小波包分解 改进算法 柴油机 振动信号 分形诊断 应用 Diesel Engines Vibration Diagnosis Fractal Algorithm Wavelet Packet 准确性和可靠性 运行状态 判断 原始信号 分析表 特性 系统 关联维数 |
| 文章编号： | 1003-188X（2007）11-0170-03 |
| 收稿时间： | 2007-02-02 |
| 修稿时间： | 2007-02-02 |
Application of Ameliorated Wavelet Packet Algorithm in the Fractal Diagnosis of Vibration in Diesel Engines |
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| WANG Jing,YU Shi-lin,WU Ying,CAO Yang. Application of Ameliorated Wavelet Packet Algorithm in the Fractal Diagnosis of Vibration in Diesel Engines[J]. Journal of Agricultural Mechanization Research, 2007, 0(11): 170-172 | |
| Authors: | WANG Jing YU Shi-lin WU Ying CAO Yang |
| Affiliation: | Zhenjiang Watercraft College, Zhenjiang 212003, China |
| Abstract: | In the fractal diagnosis of diesel fault, many noises exist in the measured vibration signals. The ameliorated wavelet packet analysis and reconstruction algorithm can de-noise these original signals. Then with proper embedded dimensions, the consequent correlation dimension can reflect the real condition of the system. As case study has shown its reliability, the algorithm therefore can greatly improve the accuracy and reliability of diagnosing the running state of diesels with signal correlation dimension. |
| Keywords: | auto-control technology fault diagnosis experiment diesel engines vibration signal correlation dimension wavelet packet transform |
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