https://scidar.kg.ac.rs/handle/123456789/1 University of Kragujevac. Serbia Mon, 02 Nov 2026 17:44:07 GMT 2026-11-02T17:44:07Z https://scidar.kg.ac.rs/handle/123456789/23435 Title: Internal ballistics-based design and structural analysis of a 30×165 mm cannon barrel Authors: Bojković, Mihailo; Dunić, Vladimir; Milovanović, Vladimir Abstract: This paper deals with the analysis and optimization of parameters influencing the internal ballistics and barrel design of the 30×165 mm automatic cannon. Internal ballistic calculations were performed using a mathematical model based on the Drozdov method, with the aim of determining the influence of various parameters on projectile muzzle velocity and maximum powder gas pressure inside the barrel. The analysis was first carried out using reference internal ballistic parameters, after which selected parameters were varied within a limited range in order to examine their influence on system performance. By individual and combined variation of the parameters, their mutual dependence and impact on the operating characteristics of the weapon system were determined. The primary objective was to obtain higher projectile muzzle velocity while maintaining the maximum pressure within allowable limits. Based on the obtained optimal parameters, the barrel geometry was calculated. In the final stage of the research, structural verification of the designed barrel was performed using the finite element method in Simcenter Femap. The barrel model was subjected to loading conditions corresponding to the calculated internal ballistic forces, enabling analysis of stress distribution, deformation, and structural integrity under operating conditions. Thu, 01 Jan 2026 00:00:00 GMT https://scidar.kg.ac.rs/handle/123456789/23435 2026-01-01T00:00:00Z https://scidar.kg.ac.rs/handle/123456789/23434 Title: Eksperimentalna mehanika Authors: Milovanović, Vladimir Thu, 01 Jan 2026 00:00:00 GMT https://scidar.kg.ac.rs/handle/123456789/23434 2026-01-01T00:00:00Z https://scidar.kg.ac.rs/handle/123456789/23433 Title: OPTIMIZATION OF CHASSIS GEOMETRY FOR INCREASING THE PRODUCTION CAPACITY OF 4X4 VEHICLE PLATFORM Authors: Vasiljevic, Mihajlo; Živković, Bogdan; Lukić, Jovanka Abstract: The optimization of chassis geometry represents a key step in the development of modern modular 4×4 vehicle platforms. The manufacturing of chassis with complex geometries requires the use of specialized tooling, involves potential deformations due to welding, and demands a complex logistical framework, all of which significantly increase production time and costs. These requirements further limit production flexibility and may slow down adaptation to diverse operational demands. In the military sector, where rapid response and adaptability to various missions are essential, modularity and shortened production cycles—along with minimal reliance on specialized tools—are of critical importance. For this reason, a chassis concept with simplified geometry and standardized structural elements has been developed, enabling rapid configuration of different superstructures. The entire assembly process is significantly simplified, as only a single type of longitudinal beam needs to be produced, while the wheelbase can be easily adjusted according to specific application requirements, owing to a dedicated connection method of the suspension subassembly. This approach enables more efficient production, easier maintenance, and greater operational flexibility of the vehicle. Thu, 01 Jan 2026 00:00:00 GMT https://scidar.kg.ac.rs/handle/123456789/23433 2026-01-01T00:00:00Z https://scidar.kg.ac.rs/handle/123456789/23432 Title: 11th International Congress "Motor Vehicles & Motors 2026" Book of Proceedings Editors: Miloradović, Danijela; Stojanovic, Nadica Thu, 01 Jan 2026 00:00:00 GMT https://scidar.kg.ac.rs/handle/123456789/23432 2026-01-01T00:00:00Z