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Research on Fatiguelife for the Structure of Guayside Container Crane

Author: XiongZuoZuo
Tutor: XuChangSheng
School: Wuhan University of Technology
Course: Mechanical Design and Theory
Keywords: Quayside container cranes Metal structure Finite Element Analysis Fatigue strength Fatigue life
CLC: U653.921
Type: Master's thesis
Year: 2011
Downloads: 90
Quote: 2
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Abstract


Quayside container bridge crane wharf apron of container handling equipment . With the increasingly fierce market competition , the large-scale development of container transport ship , quay crane are becoming large-scale , high-speed , heavy-duty , in order to meet the operational requirements . The large shore bridge has become a main model the current dedicated container terminal is equipped with loading and unloading machinery . The crane structural design need reasonable configuration , control cost and structure within a predetermined period of use , with the intended function . Currently , there are some problems in the design of the quay crane structure : long - term domestic and foreign large-scale structure of the design mostly remain in static analysis and to simplify the analysis phase , the general structure and design personnel in accordance with the conventional design steps , according to the experience of a series of larger the coefficient for the calculation of the strength, rigidity and stability, etc. and accounting, in order to ensure the reliability and safety of the design . Therefore the design process is a longer period, the design accuracy is not high . Cranes have occurred in the use phase , open welding , cracking and even breaking phenomenon , crane service life depends largely on the life of the metal structure . Fatigue strength and fatigue life assessment of crane metal structure is very urgent . Therefore, strengthening the shore bridge fatigue problem , the popularity of anti- fatigue design theory and method has a very important significance . In this paper, based on the fatigue theory on fatigue and fatigue life theory and fatigue load spectrum and cumulative damage theory ; 35t-28m quayside container bridge crane , using finite element analysis software ANSYS finite element model for static mechanical analysis and modal analysis ; dedicated fatigue the analysis software MSC.fatigue, analysis the crane structure approximation of actual working conditions of fatigue and stress , and life , and full of fatigue life estimation of crane metal structure . The results of this study the distribution of the fatigue life of the structure is visually presented in front of people , designers and users can accurately and easily assess the reasonable structure design and the use of performance , will help to improve the fatigue performance of the products , reduce development cycles , reduce production and design costs , and improve economic efficiency . The results of this study have certain theoretical significance and practical value .

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