| The ship unloader is the engineering equipment for unloading and delivery of the specialized docks.The selection of the model and the excellent performance directly determine the working efficiency and even affect the safe operation of the entire port transportation system and the working groups at all levels.Due to the different loading and unloading needs of major terminals,different types and structures of ship unloaders have been produced.The difference in the structure of the ship unloader makes the stress distribution under various working conditions more complicated.The strength and vibration of the steel structure determine the service life of the ship unloader.Therefore,the static and dynamic load strength and vibration analysis of the ship unloader steel structure are of great significance for its operation and maintenance.Based on ANSYS Workbench software,this paper builds a structural model for the4# grab bucket unloader of Caofeidian Industrial Port Co.,Ltd.According to the initial conditions,the static load analysis,modal analysis and dynamic load strength analysis of the ship unloader steel structure were carried out by ANSYS Workbench software,and the maximum stress condition,natural frequency and its under different working conditions were analyzed.Indicators such as vibration mode.The resulting data is then analyzed for theoretical determination of the maximum stress distribution location.With the help of Donghua DH5902 dynamic data acquisition and analysis system,the signal sent by the electrical strain gauge BE120 E arranged on the steel structure is collected for working condition.The element simulation results are demonstrated,the reliability is analyzed,and the performance analysis of the steel structure is completed.Through the above analysis,the weak parts of the steel structure are found,the steel structure of the ship unloader is maintained,and the life of the equipment is extended.The final conclusion is to provide guidance for the operation of the ship unloader. |
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