Transient Simulation on Dynamic Response of Liquid Annular Seals

Authors

  • Li Song China Nuclear Power Engineering Co.Ltd., Shenzhen, Guangdong, 518124, China
  • Pingwei Chen National Enterprise Technology Center of CQPI, Chongqing, 400033, China; School of Mechanical and Powder Engineering, Harbin University of Science and Technology, Harbin, 150080, China
  • Tong Wang School of Mechanical and Powder Engineering, Harbin University of Science and Technology, Harbin, 150080, China
  • Wensheng Ma National Enterprise Technology Center of CQPI, Chongqing, 400033, China

DOI:

https://doi.org/10.30564/jmser.v3i1.2597

Abstract

Transient change of the operating parameters has a serious influence on the stability of liquid annular seals. Take the liquid annular seals as a research object, a numerical method based on six-degree-of-freedom (6DOF) to analyze the dynamic response of liquid annular seals under gravity impact load. The variations of the force of liquid seal and pressure as well as the axis trajectory in time history are investigated. The influence of different sealing clearance, different liquid viscosity and different rotor speed is also studied. The results show that the maximum sealing pressure and sealing force of gravity direction will increase greatly in a very short time and then reduce rapidly. When sealing clearance increases, the displacement response amplitudes of axis trajectory, the maximum sealing force of gravity direction and maximum sealing pressure also increase. When liquid viscosity increases, the displacement response am plitudes of axis trajectory, the maximum sealing force of gravity direction and maximum sealing pressure decrease. We also found that different rotor speed has almost no influence on the maximum sealing force of gravity direction and maximum sealing pressure.

Keywords:

Annular seals, Transient impact load, 6DOF, Axis trajectory, Seal pressure

References

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How to Cite

Song, L., Chen, P., Wang, T., & Ma, W. (2020). Transient Simulation on Dynamic Response of Liquid Annular Seals. Journal of Management Science & Engineering Research, 3(1), 23–27. https://doi.org/10.30564/jmser.v3i1.2597

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Article