| 柴油机缸套磨损的诊断研究 |
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| 引用本文： | 商斌梁 夏勇 等. 柴油机缸套磨损的诊断研究[J]. 机械科学与技术, 2001, 20(6): 906-907,964 |
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| 作者姓名： | 商斌梁 夏勇 等 |
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| 作者单位： | 第二炮兵工程学院 西安710025(商斌梁，夏勇，张振仁)，第二炮兵工程学院 西安710025(杨金岩) |
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| 摘 要： | 通过对不同磨损程度的柴油机缸套进行实验 ,采集柴油机机身的振动信号。计算柴油机机身振动信号的小波包能量、最大幅值、奇异性指标 ,并建立了振动信号的 AR和 ARMA模型 ,最后利用遗传算法进行自动再生最佳特征参数 ,得到了优化的缸套磨损故障判别函数 ,结果表明利用该判别函数可以简洁有效地计算出缸套磨损等级 ,从而对缸套进行故障诊断。
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| 关 键 词： | 小波包能量 奇异性指标 时序分析 遗传算法 |
| 文章编号： | 1003-8728(2001)06-0906-02 |
On Diagnosis of Abrasion of Diesel Cylinder Cover |
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| SHANG Bin-liang,XIA Yong,ZHANG Zhen-ren,YANG Jin-yan. On Diagnosis of Abrasion of Diesel Cylinder Cover[J]. Mechanical Science and Technology for Aerospace Engineering, 2001, 20(6): 906-907,964 |
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| Authors: | SHANG Bin-liang XIA Yong ZHANG Zhen-ren YANG Jin-yan |
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| Abstract: | The vibration signal of diesel engine body can b e obtained by experiment for various diesel cylinder cover which had different a brasion degree. Energy in wavelet packet, the maximum amplitude of the vibration signal was calculated. AR and ARMA models of vibration signal were built. Genet ic algorithm was used to auto-breed the best characteristic parameters. Finally , the best fault diagnosis function is obtained. The results show that it is fea sible and effective to diagnose cylinder cover abrasion fault by using GA algori thm with calculating abrasion degree. |
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| Keywords: | Wavelet-packet energy Singularity index Time -series analysis Genetic Algorithm(GA) |
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