This master thesis deals with computing of mechanicals properties of parts of headlamps. Parts of headlamps are defined with two different material models, linear material model and material model from Moldflow method. The problem is solved by computational modeling with finite element method using Autodesk Moldflow Insight, Ansys 17.2 and Ansys 18.2 with included Moldsim tool. The outputs are calculations of mechanical properties and comparison of both material models.

The aim of this work was to create a 3D model of an asynchronous motor on which it is possible to perform temperature and other simulations using the Ansys Workbench computational software. The whole work consists of the theory of warming of electric machines, the separate construction of a 3D model and its temperature analysis.

This Master’s thesis deals with strain-stress analysis of a spine segment with an introduced fixator and a spine in natural physiological state. The work starts with a research study of literature sources that focus on similar issues. Furthermore, basic anatomy terminology and basic procedures for human spine stabilization were described. The formulated issue was resolved by computational modelling with the use of the finite element method. This solution requires a suitable computational model to be produced. This model consists of partial geometry, material, bond, and loading models. The geometric model was produced on the basis of CT scan images of a 60-year-old man which were used for producing five spine vertebrae T11–L3. Moreover, the geometric model consists of four intervertebral discs and eight articular cartilages. The material model includes homogeneous, heterogeneous and degraded properties of bone tissue. The strain-stress analysis was performed for seven loading states, which concern basic movements of human spine – standing, bending forward, bending backwards, bending left, bending right, left rotation and right rotation, with the use of ANSYS software. The assessed and analysed quantities include spine segment displacement, contact pressure of articular cartilages and stress on the fixator.

The subject of this thesis is realization of short research of current compact hydraulic power unit, realization of FEM analysis with aim to find inappropriately dimensioned parts of structures. Based on this data design optimized solution of structures and create drawings of weldments. This thesis is carried out in cooperation with company Bosch Rexroth, spol.s.r.o.

The Diploma thesis describes the implementation of innovative production of protective liner to the manufacturing company. The liner is manufactured in sizes of nominal diameter DN 200 - DN 500. The material is low-alloy steel EN 10216-2 10CrMo9-10. For the production innovation, the technology of pipe end flaring by a movable mandrel was chosen. Verification of the functionality of this technology was performed using analytical calculations and numerical simulation of FEM. The results of numerical methods were compared with the results of a practical experiment. The experiment was performed on 5 test specimens with a diameter of 273 mm. The machine device was a hydraulic press with a nominal force of 2000 kN and equipped with pressure and position sensors. The experimentally obtained values of force and the tool path dependence were similar with the values of FEM simulation. The difference in the value of the force in the maximum tool path was 290 kN. The flared diameter was formed to a value of 319 mm. This value corresponds to 16.5% of increased nominal diameter, which is sufficient from design point of view. Non-destructive tests ruled out the presence of crack defects on the flared diameter. According the new set up working procedure was produced the first real part. Significant financial savings of CZK 3.5 - 5.3 million / year were quantified in the technical and economic evaluation. Return on necessary investments is between the 9th - 14th manufactured pieces (approx. 15% of the annual production volume). In conclusion, innovation has promising results and will be issued by the company into the production process.

Diplomová práce se zabývá tuhostní optimalizací nosiče satelitů, tzv. Dispenseru. První kapitola uvádí přehled evropských vesmírných aktivit a poskytuje nezbytné technické pozadí týkající se nosných raket. Druhá kapitola se věnuje popisu tvorby výpočetního modelu, neboť veškeré výpočty, včetně optimalizace popsané v kapitole třetí, jsou založeny na metodě konečných prvků. Pro optimalizovanou variantu je ve čtvrté kapitole provedena základní pevnostní kontrola.

My thesis deals with project of LVDS busbar with high resistivity with regard to disturbance from surroundings and radiation undesirable electromagnetic waves into its environment. Project of LVDS busbar was elaborated by numeric methods and it was suggested optimal solution of the shape and material of multiply technology DPS. The project was realized on desired driving-point impenance of busbar Z=100 ohm with frequency f1=100 MHz of the first harmonic component rectangular signal of defind modality, entering and diagonal edge.

The first part of the Master´s thesis describes physical principles of ultrasound and fundamental variables of ultrasound field. It also deals with mathematical description of finite element method and outlines basic principles of ultrasound computed tomography. The second part introduces finite elements generator GMSH. This part focuses on the process of ultrasound field simulation and presents software that can be used for field simulation. The last part contains examples of models.

This thesis is dealing with thermal fields and the possibilities of their solution by a finite element method. Thereinafter thesis describe assembling a 3D model of induction machine with known parameters, and solving thermal field of the model by Ansys Workbench program and verification of these results by practical measuring on real machine.

The content of master´s thesis is to introduce with OpenSource software, which use finite element method and to study facilities implementation of free accessible library solvers, meshes and visualization tools. Further there are individual modules introduced. Is chosen suitable combination of OpenSource tools, which create full simulation facility for finite element method. In the conclusion, several electromagnetic examples are solved.