Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon openaccess Numerical simulation for multi-way valves and fit clearance research based on heat–fluid–solid coupling

  • Author(s): Liping Xu 1, 2 ; Haoyi Ma 1, 2 ; Dezhi Ren 3
    • View affiliations
  • Source: Volume 2019, Issue 13, January 2019, p. 247 – 252
    DOI:  10.1049/joe.2018.9036 , Online ISSN 2051-3305
This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Received 03/10/2018, Accepted 17/10/2018, Revised 14/10/2018, Published 22/10/2018

It is difficult to accurately calculate the working load of the multi-way valve of the crawler tractor in the traditional method. In practice, the spool and valve body are prone to over-standard leakage and clamping problems in relative movement. This study analyses the mechanism of clamp and leakage problems caused by deformation, considering the influence of gradual change of oil channel diameter and direction change in the valve body caused by the throttling of the spool. Numerical simulation of heat–fluid–solid coupling for multi-way valves is carried out. Under the condition of maximum pressure, the characteristic curve of material deformation of different spool and valve body changes with oil temperature is obtained. By evaluating the fitting characteristics of the spool and valve body of common materials, the optimal fit clearance is determined accurately. This effectively solves the contradiction between the clamping and leakage of the multi-way valve and improves the performance of the multi-way valve.

Inspec keywords: numerical analysis; deformation; valves; agricultural machinery

Other keywords: oil channel diameter; direction change; fit clearance research; heat–fluid–solid coupling; multiway valve; numerical simulation; valve body changes; spool; clamping problems; clamp; over-standard leakage; leakage problems

Subjects: Mechanical components; Numerical analysis; Numerical approximation and analysis; Fluid mechanics and aerodynamics (mechanical engineering)

References

    1. 1)
      • 3. Liu, X.H., Ke, J., Liu, H.L.: ‘CFD study on the temperature field of the radial clearance of a hydraulic slide’, J. Mech. Eng., 2006, 2, (5), pp. 231–234.
    2. 2)
      • 10. Fu, S., Hu, Y.P., Li, X.C., et al: ‘Fluid solid coupling numerical simulation of flow and boiling heat transfer in cylinder head of diesel engine’, J. Agric. Mach., 2010, 41, (4), pp. 26–30.
    3. 3)
      • 2. Zheng, S.J., Quan, L., Chen, Q.: ‘CFD calculation and analysis of flow field of hydraulic cone valve during spool movement’, J. Agric. Mach., 2007, 38, (1), pp. 168–172.
    4. 4)
      • 6. Yuan, Z., Xu, D., Liu, C.B., et al: ‘Strength analysis of hydraulic retarder blade based on heat-fluid-solid coupling process’, J. Jilin Univ. (Eng. Ed.), 2016, 46, (5), pp. 1507–1511.
    5. 5)
      • 5. Yan, F., Mao, M.S., Xu, X.Y.: ‘Thermodynamic analysis of multi physical field coupling of hydraulic solenoid valve’, J. Mech. Eng., 2014, 50, (2), pp. 140–145.
    6. 6)
      • 4. Liu, S.Y., Yang, S.D., Wu, L.: ‘Optimum design of strength and fit clearance for large diameter slide valve body’, Hydraul. Pneum., 2012, 5, pp. 90–94.
    7. 7)
      • 7. Zhao, J.H., Zhou, S.L., Lu, X.H., et al: ‘Numerical simulation and experimental study of heat-fluid-solid coupling of double flapper-nozzle servo valve’, Chin. J. Mech. Eng., 2015, 28, (5), pp. 1030–1038.
    8. 8)
      • 8. Zhang, Y.G., Mao, H.P., Su, T.X., et al: ‘Numerical simulation of thermal fluid solid multi physical field coupling state of cylinder head based on whole field dispersion’, J. Beijing Inst. Technol., 2016, 36, (6), pp. 564–567.
    9. 9)
      • 9. Lin, J.Z., Ruan, X.D., Chen, B.G., et al: ‘Fluid mechanics’ (Qinghua University Press, Beijing, 2005, 2nd edn. 2013).
    10. 10)
      • 1. Jiang, T., Huang, W., Wang, A.L.: ‘Neural network model for topology combination of multi-way valve spool’, J. Xi'an Jiao Tong Univ., 2016, 50, (6) pp. 37–41.
http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2018.9036
Loading

Related content

content/journals/10.1049/joe.2018.9036
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address