| WANG An-yu,WANG Dong-wei,FAN Zhi-yong,WU Yuan-ke,XIANG Zai-yu,MO Ji-liang.Synergistic Effect of Surface Groove and Lubricant on Friction-induced Vibration and Noise Characteristics[J],48(8):16-22 |
| Synergistic Effect of Surface Groove and Lubricant on Friction-induced Vibration and Noise Characteristics |
| Received:June 11, 2019 Revised:August 20, 2019 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2019.08.003 |
| KeyWord:surface groove MoS2 friction-induced vibration noise interface characteristics |
| Author | Institution |
| WANG An-yu |
Tribology Research Institute, Southwest Jiaotong University, Chengdu , China |
| WANG Dong-wei |
Tribology Research Institute, Southwest Jiaotong University, Chengdu , China |
| FAN Zhi-yong |
Tribology Research Institute, Southwest Jiaotong University, Chengdu , China |
| WU Yuan-ke |
Tribology Research Institute, Southwest Jiaotong University, Chengdu , China |
| XIANG Zai-yu |
Tribology Research Institute, Southwest Jiaotong University, Chengdu , China |
| MO Ji-liang |
Tribology Research Institute, Southwest Jiaotong University, Chengdu , China |
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| Abstract: |
| The work aims to improve the vibration and noise reduction performance of the surface groove and prolong its service life and then explore an appropriate optimization method through test. NC machining method was used to fabricate a groove of certain size on the surface of compacted graphite iron. The groove was filled with solid lubricant MoS2 to obtain the surface with different time-varying characteristics. The effect of cooperated groove and solid lubricant MoS2 on interface friction-induced vibration and noise characteristics was investigated by adopting ball-on-flat configuration to conduct friction contrast test. When the groove and MoS2 solid lubricant worked together, not only the impact vibration of the groove could be effectively alleviated, but also the friction-induced vibration and noise could be further suppressed. Compared with smooth surface, the main frequency amplitude of noise of the surface filled with MoS2 was reduced by about 13.4 dB. Under the test conditions, the "irregularity" interface factors caused by adhesive tearing and ploughing are the main inducement of friction-induced vibration and noise. The cooperation of groove and MoS2 can not only maintain the interface integrity but also keep the time-varying characteristic. It can slow down and weaken the "irregularity" interface factors, further optimize the function of reducing vibration and noise, and prolong the service life of groove as well. |
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