Research of Structure Tuning Resonance Method of Spur Gear Micro Crack Defect Detection System
The vibration signal generated by the micro-crack defects of vehicle gears is very weak，and it is difficult to be found and extracted in the background noise signal, which causes serious safety accidents and economic losses. Taking the spur gear as research object, innovatively applying the amplific...
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| Main Author: | |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2019-01-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.11.003 |
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| Summary: | The vibration signal generated by the micro-crack defects of vehicle gears is very weak，and it is difficult to be found and extracted in the background noise signal, which causes serious safety accidents and economic losses. Taking the spur gear as research object, innovatively applying the amplification effect of resonance on weak vibration signals, a structural tuning resonance method for detecting micro cracks defect in gears is proposed. An experimental testing system based on structure tuning resonance is constructed by combining finite element modal analysis technique with experimental modal analysis technique, the micro cracks defect of spur gear is detected by using this test system. Experiments result show that the frequency of the sideband around the meshing frequency in the spectrum of the signal measured by the structural tuning resonance method is more obvious, which is more conducive to the identification and diagnosis of micro defects of the gear. |
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| ISSN: | 1004-2539 |