Strength and Fatigue Analysis of Composite Bogie Frame
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Date
2017-06
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Addis Ababa University
Abstract
The bogie frame accommodates various bogie equipment and is generally fabricated by welding together two cross beam into H-shaped frame, compound side beams were developed using press welding. This research paper presents the fatigue strength analysis for the composite bogie frame of AALRT. The bogie frame of a railway is an important structural member for the support of vehicle loading. In general, more than 25 years’ durability is necessary. The core objective of this proposal is to analyse strength and fatigue of bogie frame. The problem has been formulated by using composite bogie frame. For this purpose, a bogie frame has been modeled using solid works software and imported to ANSYS work bench 2016 for analysis. In the analysis of the research a three-dimensional finite element model of the bogie frame has been used to investigate the effect of the applied loading force at the frame surface area.
The fatigue life has been analyzed for using carbon/epoxy and structure steel.While the material using for AALRT is structure steel. The total deformation of the carbon/epoxy 2.1101e-6Max, the equivalent stress 225.39Max and the total deformation of the structure steel 0.74025Max, the equivalent stress 209.55Max.
The results show the carbon/epoxy composite bogie frame had a good fatigue performance in comparison with conventional metal bogie frame and is considering as the best effective way to reduce the weight of railway vehicle.
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Keywords
Bogie frame, fatigue, strength, composite, ANSYS