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This paper analyzed the structure and mechanical load of the main girder of hoisting machinery, taking the construction hoisting machinery as the breakthrough point, establish finite element model of main girder by ANSYS, analyze the structure natural frequency and strength of the main girder. Then an optimal design of main girder was made based on the mathematical model of the quality of the main girder as the objective function.

Structure analysis and optimal design of the vibrating screen girder of hoisting machinery