SCIDAR - A Digital Archive of the University of Kragujevac

Road traffic accidents are identified as a significant societal issue based on extensive and comprehensive research in public health and traffic safety. Such incidents lead to significant negative outcomes, including human casualties, economic consequences, vehicle damage, and significant medical costs. Developing predictive models is crucial for identifying risk factors associated with accidents, thereby improving understanding of accident causes and enabling more effective prevention interv...

This paper presents a case study on the repair of oldtimer parts, with a particular focus on the damaged air duct that connects the heating and cooling system to the car's cabin. The replacement of such parts is challenging due to the cessation of production, making reverse engineering a feasible solution. Using the high-resolution and high-accuracy Artec SPIDER 3D scanner, the damaged part was digitized, followed by shape reconstruction and 3D CAD modeling processes. Furthermore, the model ...

Gear train optimization is a constant subject of research with the goals of its adequate and justified use. One of the more important segments of optimization is the criteria of gear train volume. This paper is oriented on the analysis of the problem of decreasing gear train volume from a gear shaft axis position aspect. A heuristic approach has been developed for positioning shaft axes along a golden spiral contour, and the methodology for this alternative solution of optimization problems w...

Composite materials are still not in widespread use in the industry due to their unexplored potential. One of the uses of composite materials can be in drive shafts. Using lightweight materials for propulsion components can potentially significantly decrease their weight in comparison to their metal counterparts, while maintaining performance characteristics. Drive shafts are subjected to torsion and in rare cases they are subjected to bending. This paper explores the angle of twist in case o...

This research paper considers an experimental approach to determining 3D printed housing diameters for press-fitting standard ball bearings. The housing was 3D printed using Fused Deposition Modeling (FDM) technology with DevilDesign PET-G filament. Printed bearing seats were made with a 0.2 mm resolution for two nominal bearing sizes: 13 mm and 26 mm. The bearing seats had three varied nominal measurements: one matching the size of the bearing being installed, another 0.1 mm smaller, and a t...