The optimization of the clipping assembly mechanism of a document file, its introduction in serial production and the acquisition of European patent protection the company Niko d.d. from Železniki enable to reach 60% of the market share on the European market and 45% on the global market.
F.32 International patent
COBISS.SI-ID: 9102363Students of the Faculty of Mechanical Engineering at the University of Ljubljana, under the mentorship of Tadej Kosel, received the first prize at the student competition entitled Design/Build/Fly, organized each year by Textron Aviation and Raytheon Missile Systems, supported by the American Institute of Aeronautics and Astronautics (AIAA). Competition is organized for aviation students. The competition took place from 10 to 12 April 2015 at TIMPA Airport in Tucson, Arizona, USA.
E.02 International awards
COBISS.SI-ID: 14163739This is a Proceedings of an International Conference on Engineering Vibration, held from 7.-10.9.2015 in Ljubljana. Over 200 delegates attended the conference form 30 countries worldwide.
B.02 Presiding over the programming board of a conference
COBISS.SI-ID: 14168859This thesis presents the numerical modelling of dynamical systems with the Component-Mode Synthesis techniques. They are used to model the system response of complex structures with variable contact conditions during operation. A comparison of four classical Component-Mode Synthesis techniques is presented. The formulation divides the complex structure into reduced substructures and enables efficient identification of structural modifications on the system response. The results, in comparison with an experiment, demonstrate the efficiency as well as the physical consistency of the used techniques. The Component-Mode Synthesis techniques are used together with the developed mixed-contact formulation to model the system response. New explicit event-driven integration schemes are presented. The developed integration process defines three possible contact states, that require the definitions of the reduced-system matrices as well as to update the initial conditions. The efficiency of the methods is demonstrated on a real structure, which also serves for the validation of the developed numerical formulation.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 292420096The research presents experimental and numerical identification of the effect of dynamic effects on the sheet-metal blanking process. A novel laboratory blanking apparatus has been presented, offering a wide range of experiments with great repeatibility and controlled variation of process parameters. From the blanking experiment, yield and ultimate stresses in the out-of-plane direction are identified, and from the partial and sequential experiments, material damage, modelled by the Lemaitre damage model. Effect of material anisotropy in the in-plane direction on the out-of-plane characteristics is assesed. A numerical code, based on the extended finite element method and explicit central difference method, for two-dimensional modelling of elasto-plastic contact problems is presented, using damage accumulation up to fracture and crack propagation through the critically damaged area.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 14039579