吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (5): 1506-1512.doi: 10.13229/j.cnki.jdxbgxb201605018

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Strength analysis of hydraulic retarder blade based on the process of thermal-fluid structure interaction

YUAN Zhe1, XU Dong1, LIU Chun-bao1, LI Xue-song2, LI Shi-chao1   

  1. 1.College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
    2.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China
  • Received:2015-05-08 Online:2016-09-20 Published:2016-09-20

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Abstract: The traditional method of Fluid-structure Interaction (FSI) of hydraulic retarder cannot reliably simulate the load distribution on the blade, and it does not take the influence of temperature field into consideration. An efficient one-way Thermal-fluid Structure Interaction (TFSI) method is presented according to Navier-Stokes equations, energy conservation equations and nonlinear structure dynamics equation. The simulation results of FSI and TFSI under the same working condition are comparatively analyzed from the aspects of deformation and equivalent stress. The results indicate that, if other conditions are the same, the maximum displacement of the blade is increased by 6% and maximum equivalent strength is increased by 21% after considering the composite effect of temperature field on the blade boundary, which can increase the probability of strength failure of the blade and have security problems.

Key words: turn and control of fluid, hydraulic retarder, numerical simulation, blade strength, fluid-structure interaction (FSI), thermal-fluid structure interaction (TFSI)

CLC Number: 

  • TH137
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