Finite Element Analysis on Crane Girder with Variable Cross Sections Based on ANSYS

To the 36 meters crane girder with trapezoidal variable cross-section in a steel plant, finite element model is established reasonably according its actual size. The calculation of crane girder structure was introduced by using the finite element analysis software ANSYS. The local stress state of the cross-section is investigated and the stress concentration position of variable cross-section is found, which can provide a theoretical basis for the establishment of monitoring system. At the same time, the former 6 natural frequencies and the corresponding vibration patterns of the crane beam are extracted in modal analysis of crane girder, which is to provide a basis and reference for the structure design of crane girder