Abstract
The purpose of trucks is very diverse, but the main purpose is freight transportation. When cargos are transported, the truck’s suspensions are heavily loaded, so failures also occur most often in the suspension elements. For axles of trailers – tubular construction failures occur, they crack. Axle failure investigations are required to determine the cause of the failure. The paper analyses three-axle truck trailer suspension. Axle failure analysis and axial deformation modelling were performed to determine trends and causes of truck trailer suspension axle failures. Different cases with axles of tubular construction with wall thicknesses of 9 and 11 mm were modelled. The paper presented visual failure analysis of truck trailers suspension axles and finite element modelling results of axle’s deformation of different geometrical parameters. The results were discussed and conclusions were drawn.
Highlights
Trucks are designed for the transportation of goods and are loaded with a variety of static and dynamic loads on all their structural components
The axle of the truck trailer is one of the most loaded elements, since it is an intermediate link between the road and the frame of the trailer
The truck trailer suspension axles failure analysis and modelling can be applied in another construction
Summary
Trucks are designed for the transportation of goods and are loaded with a variety of static and dynamic loads on all their structural components. Thorough research and assessment of potential damage could help to find solutions to prevent defects and ensure product quality, reliability and cost-effectiveness This is a global problem and it does not matter whether the axle is used in a tractor, bus or truck trailer. The truck trailer suspension axles failure analysis and modelling can be applied in another construction. In the paper by Jafari et al (2006) stress analysis of front axle of JD 955 combine under static loading conditions resulted from the applied modifications was performed by using FEM. Based on finite element analysis, redesign of axle was carried out for reducing the cost and weight and maintains the mechanical strength with easy manufacturability and cost reduction.
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