Research For Jib Structural Dynamics Of Single-Jib Crane

The growing development of the port of Port Machinery increasingly high demands, Therefore port handling machinery design and calculation methods need to constantly update and improve port machinery to the more functional, economy, reliability and safety of direction. Crane in the course of their work (such as cargo lifting, drop process) dynamic load the metal structure will have a strong impact and vibration, fatigue calculations are greatly affected. Crane Dynamics main crane up and brake work or other sudden changes in the state system of vibration rules , which determine the dynamic response of the system. For portal cranes, jib crane system is the main one of the bearing components, mechanical properties of the normal functioning unit has a direct impact. With cranes working with speed and the weight of rising right jib system for dynamic analysis is necessary.The jib is complicated by the power structure of the important pieces, This paper studies the structure of the Department or the most significant weight and rated Jib Rotary condition of the typical dynamic response. Jib structure of the modal analysis, the structure of the natural frequencies and the corresponding vibration mode. Then the jib Analysis of the structure to determine hoisting rope tension, migraine and placed side facing the changes, come to the jib conditions of the dynamic changes in the law and dynamic data, the jib structure transient dynamic, be structural dynamic response. Jib structure of the dynamic response results of displacement and stress for a more in-depth analysis Jib structure such as the dynamic design analysis provide a basis and reference .Based on ANSYS, this paper obtains some useful conclusion about parametric modeling in structure finite element analysis and its dynamic response analysis for the study of jib structure of MQ518 crane.