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Zhang Guohua, Hao Liucang, Cao Zhenfang. 基于经验模态分解的大型轮船锚机齿轮箱故障诊断J. Chinese Journal of Ship Research, 2012, 7(1): 75-80. DOI: 10.3969/j.issn.1673-3185.2012.01.015
Citation:
Zhang Guohua, Hao Liucang, Cao Zhenfang. 基于经验模态分解的大型轮船锚机齿轮箱故障诊断J. Chinese Journal of Ship Research, 2012, 7(1): 75-80. DOI: 10.3969/j.issn.1673-3185.2012.01.015
Zhang Guohua, Hao Liucang, Cao Zhenfang. 基于经验模态分解的大型轮船锚机齿轮箱故障诊断J. Chinese Journal of Ship Research, 2012, 7(1): 75-80. DOI: 10.3969/j.issn.1673-3185.2012.01.015
Citation:
Zhang Guohua, Hao Liucang, Cao Zhenfang. 基于经验模态分解的大型轮船锚机齿轮箱故障诊断J. Chinese Journal of Ship Research, 2012, 7(1): 75-80. DOI: 10.3969/j.issn.1673-3185.2012.01.015
基于经验模态分解的大型轮船锚机齿轮箱故障诊断
Zhang Guohua
,
Hao Liucang
,
Cao Zhenfang
Graphical Abstract
Abstract
Abstract
经验模态分解法(EMD)是一种针对信号变化的自适应处理方法。针对某大型轮船锚机齿轮箱,首先通过测量不同转速和位置的振动信号预估故障源;其次对采集出的原始故障信号进行处理,提取故障特征,即通过EMD将原始信号分解为若干个IMF分量,不同的IMF分量包含不同频段所对应的能量,然后再对IMF分量进行包络分析和谱分析,最终便可确定故障源,并对其进行修复。通过测试比较,验证了EMD理论方法的正确性和有效性。
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