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Dynamic Analysis of Quayside Container Crane Structure

Author: LiWenFeng
Tutor: LiHePing
School: Wuhan University of Technology
Course: Mechanical Design and Theory
Keywords: Quayside container cranes Metal structure Dynamic Modal Strength
CLC: U653.921
Type: Master's thesis
Year: 2010
Downloads: 142
Quote: 2
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Abstract


The metal structure is important to support large-scale construction and mechanical components, the intensity is certainly important, the the Dynamic Reliability same stakes, can not be ignored. Throughout the domestic steel structure designed and used, most only consider the strength and stiffness requirements, but the dynamic characteristics of the structure did not give enough attention to often be disastrous consequences in the large-scale structure. Built in 1940, the Tacoma Narrows Bridge, Hartman Bridge, built in 1995, there are fatal dynamic defective. Quayside container bridge crane is designed for the wharf apron container handling and design of an efficient mechanical equipment. Widely used in the forefront of container ports, railways and other transit points, is an integral part of the container transport, loading and unloading equipment. The metal structure is the shore the bridge most important bearing member, reliability especially dynamic reliability importance is self-evident. Design, often only consider the strength requirements, and the strength of large amount of surplus is difficult to adapt to the needs of the market. In addition, in recent years, three major international iron ore giant iron ore production, pricing right to speak so that the rising price of iron ore, steel prices are rising. Therefore, the the quay crane design uses new methods of calculation shore bridge design is more in line with actual use conditions, reasonable arrangements to safeguard the reliability and structure in order to reduce the weight not only reduce costs, but also indirectly reduce pollution. Shore bridge has a reasonable strength and optimization of dynamic characteristics, using finite element software and mechanical vibration, structural dynamics and numerical calculation of relevant theory and knowledge of the other side of the bridge metal structure on the research and analysis. Focus on the structure to do modal and transient analysis, 10 modes of the structure type and frequency as well as in-reach from the lifting action under the load displacement response curve can intuitively understand the structure of quay crane load lifting the situation of the change of the displacement. Given by the finite element analysis results and existing instance some possible improvements for the the future crane metal structure design, analysis and research to provide reference. The research has practical engineering value. This made: 1) analysis of quayside metal structure, establish the finite element model; 2) with reference to the European crane design specifications and related documents, analysis from the dynamic load factor liters process; 3) the use of ANSYS software to the other side of the bridge Modal analysis and transient analysis; lifting loads 4) Find the relevant information and documents successful examples are given of possible improvements.

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CLC: > Transportation > Waterway transport > Port projects > Port Construction and Equipment > Transfer and handling equipment > Lifting machinery
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