In this paper,the overall stress condition of running mechanism was analyzed. The nonlinear finite element method was used for mine car running gear; the stiffness and strength were analyzed by using the Hyper Mash software,and according to the analysis result,it was found that the stress of the pillar position is too large. An improved design was conducted to the structure which does not meet the requirements,and then the stiffness and strength were checked,the practice results showed that improvements wer...
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