[1]杨忠炯,董栋.振动对TBM液压泵泵轴受力及疲劳寿命影响分析[J].郑州大学学报(工学版),2016,37(04):6-10.[doi:10.13705/j.issn.1671-6833.2016.04.002]
　Yang Zhongjiong,Dong Dong.The Influence of Vibration on the Force and Fatigue Life of Shaft of TBM Vane Pump[J].Journal of Zhengzhou University (Engineering Science),2016,37(04):6-10.[doi:10.13705/j.issn.1671-6833.2016.04.002]
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振动对TBM液压泵泵轴受力及疲劳寿命影响分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年04期
页码:
6-10
栏目:
出版日期:
2016-08-31

文章信息/Info

Title:
The Influence of Vibration on the Force and Fatigue Life of Shaft of TBM Vane Pump
作者:
杨忠炯; 董栋
1.高性能复杂制造国家重点实验室,湖南长沙4100832.中南大学机电工程学院,湖南长沙4100833.中南大学机电工程学院,湖南长沙,410083
Author(s):
1. State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083;2, Hunan. School of Mechanical and Electrical Engineering, Central South University, Changsha 410083;3, Hunan. School of Mechanical and Electrical Engineering, Central South University, Changsha, Hunan 410083
关键词:
硬岩掘进机; 振动; 叶片泵泵轴; 疲劳寿命
Keywords:
TBM; vibration; vane pump; shaft; fatigue
DOI:
10.13705/j.issn.1671-6833.2016.04.002
文献标志码:
A
摘要:
针对硬岩掘进机(tunnel boring machine,TBM)强振动工况,分析引起泵轴疲劳失效的两种机理:载荷与材料性能变化.建立了泵轴在强振动下的受力仿真模型,仿真得到泵轴稳态受力幅值随频率及振幅均呈线性增加.根据经验数据,获得不同工况下的S-N曲线修正模型.建立泵轴的有限元模型,加载不同工况的载荷与材料参数,得到振动参数影响泵轴疲劳寿命的规律.结果表明:当振幅小于3 mm,频率小于20 Hz时,泵轴总能满足对寿命要求;当振幅大于4.8 mm时,不能满足其寿命要求;当频率为10 Hz时,能满足泵轴疲劳寿命的最大振幅为4.3 mm.
Abstract:
In response to the strong vibration conditions of a tunnel boring machine (TBM), two mechanisms causing fatigue failure of the pump shaft were analyzed: changes in load and material properties. A force simulation model of the pump shaft under strong vibration was established, and the steady-state force amplitude of the pump shaft increased linearly with frequency and vibration amplitude. Based on empirical data, S-N curve correction models were obtained under different working conditions. A finite element model of the pump shaft was established, Load different working conditions and material parameters to obtain the law of vibration parameters affecting the fatigue life of the pump shaft. The results show that when the amplitude is less than 3 mm and the frequency is less than 20 Hz, the pump shaft can always meet the life requirements; When the amplitude is greater than 4.8 mm, it cannot meet its service life requirements; When the frequency is 10 Hz, the maximum amplitude that can meet the fatigue life of the pump shaft is 4.3 mm

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