| Research on the Comprehensive Demodulation of Gear Tooth Crack Early Fault |
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| 引用本文： | CUI Lingli DING Fang GAO Lixin ZHANG Jianyu (College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Advanced Manufacturing Technology,The Key Laboratory of Beijing Municipality,Beijing 100022,China. Research on the Comprehensive Demodulation of Gear Tooth Crack Early Fault[J]. 武汉理工大学学报, 2006, 28(Z2) |
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| 作者姓名： | CUI Lingli DING Fang GAO Lixin ZHANG Jianyu (College of Mechanical Engineering and Applied Electronics Technology Beijing University of Technology Advanced Manufacturing Technology The Key Laboratory of Beijing Municipality Beijing 100022 China |
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| 作者单位： | College of Mechanical Engineering and Applied Electronics Technology，Beijing University of Technology，Advanced Manufacturing Technology，The Key Laboratory of Beijing Municipality，Beijing 100022，China |
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| 基金项目： | 国家高技术研究发展计划(863计划)，Beijing Municipal Science & Technology Commission project，Doctor's Science and Research Start-Up Project of Beijing University of Technology |
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| 摘 要： | The component of gear vibration signal is very complex,when a localized tooth defect such as a tooth crack is pre- sent,the engagement of the cracked tooth will induce an impulsive change with comparatively low energy to the gear mesh signal and the background noise.This paper presents a new comprehensive demodulation method which combined with amplitude envelop demodulation and phase demodulation to extract gear crack early fault.A mathematical model of gear vibration signal contain crack fault is put forward.Simulation results based on this model show that the new comprehensive demodulation method is more effective in finding fault and judging fault level then conventional single amplitude demodulation at present.
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Research on the Comprehensive Demodulation of Gear Tooth Crack Early Fault |
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| CUI Lingli,DING Fang,GAO Lixin,ZHANG Jianyu. Research on the Comprehensive Demodulation of Gear Tooth Crack Early Fault[J]. Journal of Wuhan University of Technology, 2006, 28(Z2) |
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| Authors: | CUI Lingli DING Fang GAO Lixin ZHANG Jianyu |
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| Abstract: | The component of gear vibration signal is very complex,when a localized tooth defect such as a tooth crack is pre- sent,the engagement of the cracked tooth will induce an impulsive change with comparatively low energy to the gear mesh signal and the background noise.This paper presents a new comprehensive demodulation method which combined with amplitude envelop demodulation and phase demodulation to extract gear crack early fault.A mathematical model of gear vibration signal contain crack fault is put forward.Simulation results based on this model show that the new comprehensive demodulation method is more effective in finding fault and judging fault level then conventional single amplitude demodulation at present. |
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| Keywords: | demodulation gear tooth crack early fault amplitude modulation phase modulation |
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