The Dynamic Analysis on the Truss Girder of Portal Crane

Hoisting machinery is moving forward into high speed and heavy-duty, the requirement of mechanical properties is increasing. Therefore, dynamic research on the main girder crane is necessary. Taking a factory grab type door crane as the research object, the main girder is truss framed. The stress and strain distribution of truss girder in each working conditions to ascertain the dangerous position of the structure is determined with the dynamic analysis of the ANSYS software.