Strength Verification and Size Optimization of Truck Crane Frame
The frame is an important component of a truck crane,and its load-bearing capacity has a significant impact on the working performance of the crane.In this article,the frame of a 60 t truck crane structure is chosen as the research object,and this parameterized model is then imported into Hypermesh software for finite element analysis.The entire framework model is divided into four node grids and subjected to static mechanical calculations to calculate the von Mises stress and deformation generated under dangerous working conditions.And structural improvements were made to the initial model of the framework that did not meet the requirements for strength and stiffness to meet the requirements.Finally,to start the optimization process in OptiStruct,we need to define design variables,constraints,and optimization objectives.In this case,we will use the thickness of the shell element as the design variable,and use the stiffness and strength of the frame as constraints,with the minimum mass of the frame as the optimization goal.The optimized frame reducing the weight of the frame by 0.599 tons and achieving a weight reduction rate of 6.0%.
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