Structural Analysis And Wind Load Characteristic Study Of The Mast Crane Main Boom

Under the trend of China’s economic rise,port transportation has developed significantly.Mast cranes occupy an important position and advantage in port cargo hoisting.The main boom structure is an important structure of the mast crane.The main boom of a600-ton mast crane is taken as the research object,and the static analysis of the main boom of the crane with different wind directions is carried out on the basis of a reasonably simplified model.At the same time,the stability analysis of the boom structure is carried out.At present,there is little research on the wind load characteristics of the main boom of the mast crane.The CFD model of the main boom is established,and the structural surface wind pressure map of the crane boom and the flow field distribution of different sections under different wind speeds in the wind field are calculated.Field distribution;select the research form of one-way fluid-structure interaction,import the wind pressure results of numerical simulation into the structural response module,and obtain the deformation cloud map and stress cloud map of the main boom under the action of different wind speeds of 90-degree wind.The displacement and stress values are compared with the results of ANSYS statics calculation.The main contents are as follows:The structural characteristics of the main boom are analyzed,and the strength conditions of the main boom are calculated with reference to the "Code",and the structural stability of the main boom as a bidirectional bending part is verified.The finite element model of each section of the boom is established,assembled through the ANSYS APDL command flow,and the statics of the boom are calculated based on different wind directions to calculate the dangerous working conditions of the crane boom.Based on the calculation results of the main boom in dangerous conditions,the main boom buckling analysis is carried out through the APDL command flow,and it is verified that the stability of the main boom in dangerous conditions still meets the design requirements.The finite element model of the wind farm-main boom boom finite element model of the quay crane is established.Calculate the surface wind pressure map of the crane main boom and the flow field distribution of different sections under different wind speeds in the wind field.The wind pressure results of the numerical simulation of the flow field are imported into the solid calculation,and the deformation cloud map and stress cloud map of the main boom under the action of different wind speeds of 90-degree wind are obtained.The displacement and stress values are compared with the results of ANSYS statics calculation.The comparison results show that the calculation of wind load with reference to the "Code" satisfies the safety conditions,but the selection of the wind coefficient is conservative,and it has certain limitations to consider the wind load as a static problem in the crane design process.