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Race car dampers
Štolpa, Radek ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This bachelor thesis aims to provide an overview of manufacturers on the market in the field of sports shock absorbers according to individual disciplines. Furthermore, it describes the effects of the basic adjustment elements of the shock absorber on the dependence of the damping force and the speed of the shock absorber. I tried to create an overview of the special elements used for shock absorber affecting its characteristics. Using a quarter model replacing an off-road vehicle of category T1, I have displayed the effects of changes in individual suspension parameters such as the weight of the sprung and unsprung mass, the damping and stiffness of the tire, the damping coefficient of the shock absorber and the spring stiffness coefficient. Finally, I evaluated the optimal characteristics of the shock absorber with respect to the dynamic force under the vehicle wheel and the acceleration of the sprung mass.
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The Axles of SxS Vehicles
Štolpa, Radek ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
The diploma thesis deals primarily with the topic of the kinematics of the wheel suspension that has a significant effect on the dynamics of the whole vehicle. The thesis gives a general overview of kinematic characteristics and their impact on driving characteristics. It deals with load transfers that occur due to lateral and longitudinal accelerations. The thesis analyses the axles of the SxS vehicle, which has wheel strokes up to 600 mm. The axles have high requirements for changes in kinematic characteristics. The thesis provides an overview of the used axles and then compares them with the original ones. The thesis contains its design of axles with the procedure and evaluation of differences compared to the other axles specified by the boundary conditions. An algorithm using analytical geometry was also created where instant centre positions, roll centres and anti-characteristics for the static position of the vehicle can be calculated. In conclusion, it contains a sensitivity analysis, which aims to acquaint with the effects of kinematic connections of double wishbone suspensions on the kinematic characteristics.
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The Axles of SxS Vehicles
Štolpa, Radek ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
The diploma thesis deals primarily with the topic of the kinematics of the wheel suspension that has a significant effect on the dynamics of the whole vehicle. The thesis gives a general overview of kinematic characteristics and their impact on driving characteristics. It deals with load transfers that occur due to lateral and longitudinal accelerations. The thesis analyses the axles of the SxS vehicle, which has wheel strokes up to 600 mm. The axles have high requirements for changes in kinematic characteristics. The thesis provides an overview of the used axles and then compares them with the original ones. The thesis contains its design of axles with the procedure and evaluation of differences compared to the other axles specified by the boundary conditions. An algorithm using analytical geometry was also created where instant centre positions, roll centres and anti-characteristics for the static position of the vehicle can be calculated. In conclusion, it contains a sensitivity analysis, which aims to acquaint with the effects of kinematic connections of double wishbone suspensions on the kinematic characteristics.
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|
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Race car dampers
Štolpa, Radek ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This bachelor thesis aims to provide an overview of manufacturers on the market in the field of sports shock absorbers according to individual disciplines. Furthermore, it describes the effects of the basic adjustment elements of the shock absorber on the dependence of the damping force and the speed of the shock absorber. I tried to create an overview of the special elements used for shock absorber affecting its characteristics. Using a quarter model replacing an off-road vehicle of category T1, I have displayed the effects of changes in individual suspension parameters such as the weight of the sprung and unsprung mass, the damping and stiffness of the tire, the damping coefficient of the shock absorber and the spring stiffness coefficient. Finally, I evaluated the optimal characteristics of the shock absorber with respect to the dynamic force under the vehicle wheel and the acceleration of the sprung mass.
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