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Sensitivity analysis of FE model of a crash test
Jančář, Radek ; Řehák, Kamil (referee) ; Dlugoš, Jozef (advisor)
The deformation of the vehicle as a result of the accident serves as the input for determining the impact speed for the purposes of the expert report. One possibility of calculating the impact speed is by means of a verified finite element analysis (FEA) of the vehicle impact. However, to develop such a sufficiently accurate finite element model requires a significant financial and time investment. Such a model contains a number of key simplifications that are difficult to detect without prior experience. Fortunately, there are at least a few freely available detailed finite element (FE) vehicle models that have been experimentally verified. On these it is possible to investigate the effect of different modelling methods on observed parameters such as overall deformation or overall vehicle stiffness. Specifically, this thesis investigates the effect of geometric resolution level details, material model parameters, and boundary condition settings for the FE model of the Chevrolet Silverado 1500, model year 2014.
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The issue of evaluating the production of pollutants in the exhaust gases of passenger cars
Jančář, Radek ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
This thesis analyses evaluation of homologation measurment of pollutant production of passenger car in the European union. The measurement methodologies used are described chronologically, including the standarts that describe them. Along with the improvements and disadvantages that the new requirements have brought, it also deals with the impact on new cars and the trends that have affected emisson requirements in the field of car development. The main part of the work deals with the measurement of real driving emissions RDE and describes the issue of this breakthrough methodology.
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The issue of evaluating the production of pollutants in the exhaust gases of passenger cars
Jančář, Radek ; Bazala, Jiří (referee) ; Beran, Martin (advisor)
This thesis analyses evaluation of homologation measurment of pollutant production of passenger car in the European union. The measurement methodologies used are described chronologically, including the standarts that describe them. Along with the improvements and disadvantages that the new requirements have brought, it also deals with the impact on new cars and the trends that have affected emisson requirements in the field of car development. The main part of the work deals with the measurement of real driving emissions RDE and describes the issue of this breakthrough methodology.
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