Dynamic Analysis Of Quayside Container Crane Structure

Metal structure is a most important component supporting large-scale construction and machine. Strength is important, other reliability as an important issue can not be ignored. But look at the current domestic designed steel structure, most only consider the strength and stiffness requirements, sufficient attention are not paid to dynamic characteristics of the structures. The dynamic defect consequences in large-scale structures are unthinkable. Such as the Tacoma Bridge built in 1940 and the Hartman Bridge built in 1995, there are fatal flaws.Quayside container crane is the transport machinery designed for efficient container loading and unloading widely used in transit point such as ports, railway station. It is an essential equipment in container transportation. Metal structure is the most important component carrying load, the reliability especially the dynamic reliability is of great importance. But the design, often consider the strength. With a large amount of surplus it is difficult to adapt to market needs.In addition, in recent years the three international iron ore giants use the iron ore production voice to rise iron ore price which make steel prices rise. Therefore, use new design method in container crane design to make it more fit practical use conditions, while protecting the reliability and reasonable arrangement to reduce the weight of the structure can not directly reduce costs, it can also indirectly reduce pollution.In order to design container crane with reasonable strength and optimized dynamic properties, this paper use the finite element software and the and knowledge and relevant theory of mechanical vibration, structural dynamics and numerical calculation to research and analyze the metal structures of container crane. Mainly focus on the structural modal and transient analysis. Get the 10 vibration mode and frequency and displacement response curve of out reach dynamic lifting load of the structure. With that you can visually understand the crane structure displacement changes in the process of lifting the load changes. The finite element analysis results and the current practical examples give some improved method for future crane metal structure design, analysis, and research reference [6]. The study has practical engineering value. This paper's main work:1) Analysis of quay crane metal structure, and establish its finite element model; 2)Analyze the dynamic load factor in the process of lifting in reference to the European crane design and related literature;3) Using ANSYS software to do modal analysis and transient analysis under the lift loads.4) Find relevant information and documentation of success stories and given possible enhancement.