| 集装箱桥吊前大梁主铰冲击特征分析技术的研究 |
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| 引用本文： | 胡雄,徐丹,施思明,张杰.集装箱桥吊前大梁主铰冲击特征分析技术的研究[J].上海海事大学学报,2001,22(3):105-108. |
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| 作者姓名： | 胡雄 徐丹 施思明 张杰 |
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| 作者单位： | 1. 上海海运学院
2. 上海外高桥保税区港务公司 |
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| 摘 要： | 应用小波包分析技术,结合Hilbert包络技术,提出了小波包能量包络技术.该技术能够很好地表征桥吊在工作时产生的振动冲击等非平稳信号的状态特征,为桥吊的状态监测和安全评估提供了一种抗噪能力强、特征表述灵敏的特征抽取技术,并在已开发的状态监测和评估系统中得到了实践,取得了很好的应用.
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| 关 键 词： | 状态监测 安全评估 小波分析 特征抽取 |
| 修稿时间： | 2001年4月3日 |
Analysis of Impulsive Vibration Feature at Boom Joint of Quayside Container Crane |
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| Hu Xiong,Xu Dan,Shi Siming,Zhang Jie.Analysis of Impulsive Vibration Feature at Boom Joint of Quayside Container Crane[J].Journal of Shanghai Maritime University,2001,22(3):105-108. |
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| Authors: | Hu Xiong Xu Dan Shi Siming Zhang Jie |
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| Institution: | Hu Xiong Xu Dan Shi Siming Zhang Jie |
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| Abstract: | The technology of demodulated wavelet package of impulsive vibration signal is presented in this paper by means of wavelet and Hilbert transformation.When quayside container crane is running these non stable vibration features can be described well by the feature extracting technology which has ability of powerful anti noisy and high sensitivity.The technology has a good application to the online health monitoring and safety assessment system,which is developed and set on a quayside container crane. |
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| Keywords: | health monitoring safety assessment wavelet transform feature extraction |
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