Simulation of Wind Buffeting Failure in the Reverse Four-bar Linkage Structure of a Portal Crane
The reverse four-bar linkage structure on the elephant nose frame of the port gantry crane is prone to wind induced wind buffeting and may fracture,leading to safety accidents.Using ANSYS and Fluent finite element software for fluid structure coupling simulation,modal analysis,and harmonic analysis to obtain the stress and deformation under fracture conditions.Analysis shows that large deformations caused by structural resonance are the cause of accidents.By improving the structural connection method,the amplitude can be effectively reduced,and the stress situation of the rod can be improved.The research results can provide reference for the optimization of the structural design.
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