In order to analyze the structural strength of no floor beam dump truck cargo body, this paper established cargo body finite element analysis (FEA) model with the shell elements as basic element. The sand pressure on the cargo body was calculated by Rankine active earth pressure theory, and the Hyper works (a FEA software) was used to calculate the static strength and mode of the cargo body. By calculation, stress, deformation distribution and mode parameters of the cargo body were obtained, which provided reference for the cargo body improvement.
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