Abstract: The main frame strength o the imported turnout tamping and stabilizing vehicle does not meetthe relevant test standads in China. ANSYS software was used to optimize the frame by modeling and fi-nite element calculation without changing the overall structure of the frame. "Through the comparison andanalysis , the final optimization scheme is selected. 'The analysis results show that the optimized frame canmeet the test standard requirements in China and will pass the static strength test , then put into produc-tion.

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