| 基于Fluent的油液减振器气穴现象研究 |
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| 引用本文： | 陈齐平,吴明明,康盛,魏佳成,刘禹,田玥.基于Fluent的油液减振器气穴现象研究[J].液压与气动,2019,0(6):35-41. |
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| 作者姓名： | 陈齐平 吴明明 康盛 魏佳成 刘禹 田玥 |
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| 作者单位： | 华东交通大学载运工具与装备教育部重点实验室， 江西南昌330013 |
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| 基金项目： | 国家自然科学基金(51565011); 江西省重点研发计划 (20171BBE50039); 江西省杰出青年人才资助计划（20171BCB23059） |
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| 摘 要： | 为了抑制油液减振器气穴现象的产生，分析了减振器复原和压缩过程中气穴的生成过程。基于CFD数值方法，建立了较高精度的减振器三维流体模型和流体网格模型，在Fluent流体软件中进行了仿真分析，获得了油液减振器气穴产生的具体位置和分布情况，分析研究了不同温度对气穴产生的影响，并进行了试验验证。结果表明：气穴现象主要分布于减振器节流阀片周围，随着活塞速度的增大，气穴现象更加明显；其他因素不变，油液的温度越低，气穴现象更加严重。此方法为降低油液减振器异常振动噪声提供了一定的参考价值。
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| 关 键 词： | 油液减振器 气穴现象 Fluent 分布情况 温度 |
| 收稿时间： | 2018-12-13 |
Study Based on Fluent for Cavitation Phenomenon of Oil Damper |
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| CHEN Qi-ping,WU Ming-ming,KANG Sheng,WEI Jia-cheng,LIU Yu,TIAN Yue.Study Based on Fluent for Cavitation Phenomenon of Oil Damper[J].Chinese Hydraulics & Pneumatics,2019,0(6):35-41. |
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| Authors: | CHEN Qi-ping WU Ming-ming KANG Sheng WEI Jia-cheng LIU Yu TIAN Yue |
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| Affiliation: | Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang, Jiangxi330013 |
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| Abstract: | In order to inhibit cavitation phenomenon in an oil damper, a generation process of cavitation in process of shock absorber recovery and compression is analyzed. Based on the CFD numerical method, a three-dimensional fluid model and a fluid mesh model with high accuracy are established. The simulation analysis is carried out in the fluid software Fluent, and the specific location and distribution of cavitation in oil damper are obtained. The influence of different temperatures on cavitation is analyzed and the simulation results are verified by experiment. The results show that the cavitation phenomenon is mainly distributed around the throttle slice of oil damper; With the increase of the piston speed, the cavitation phenomenon becomes more obvious; other factors remain unchanged, and the lower the temperature of the oil, the more serious cavitation will occur. This method provides a reference value for reducing the abnormal vibration and noise of oil damper. |
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