Finite element analysis and optimization of boom structure of dynamic compaction crane
Aiming at the problems of stress concentration and structure redundancy of dynamic compaction crane jib under actual working conditions,a new type of dynamic compaction crane was taken as the analysis object,and its 3D model was established by UG NX and its Nastran Module.The pre-treatment,analysis and post-treatment of the finite element model were carried out to determine the loads under various working conditions,and the distribution of the displacement and stress of the dynamic compaction crane under static and dynamic loads was obtained.Through the optimization design,the stress distribution of the structure was improved,the weight of the boom was reduced and its mechanical performance was improved.The optimization results of lifting and unhooking conditions showed that the maximum stress and displacement of the boom were reduced by 12.5%and 6.99%respectively,and the weight of the boom was reduced by 2.36%.
dynamic compaction cranefinite element modelfinite element analysisstructure optimization of boom
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