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The Influence of Vibration on the Force and Fatigue Life of Shaft of TBM Vane Pump
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[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 37卷 Number of periods: 2016 04 Page number: 6-10 Column: Public date: 2016-08-31
Title:
The Influence of Vibration on the Force and Fatigue Life of Shaft of TBM Vane Pump
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
Keywords:
TBM; vibration; vane pump; shaft; fatigue
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2016.04.002
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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