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Analysis of the influence of body position on the car's aerodynamic characteristics
Jirásek, Lukáš ; Svída, David (referee) ; Vančura, Jan (advisor)
Aim of this diploma thesis is to make sensitivity research concerning influence of vehicle body position on its aerodynamical loading. CAD model was created in Pro/E software. Formula Ford 1600 chassis and vehicle body dimensions were used as a pattern for CAD model. Then this model was imported into CFD environment where ambient medium characteristic were set up. FLUENT software performed calculations and measurement of aerodynamical characteristics of vehicle dependent on height and angle of chassis.
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Analysis of the influence of body position on the car's aerodynamic characteristics
Jirásek, Lukáš ; Svída, David (referee) ; Vančura, Jan (advisor)
Aim of this diploma thesis is to make sensitivity research concerning influence of vehicle body position on its aerodynamical loading. CAD model was created in Pro/E software. Formula Ford 1600 chassis and vehicle body dimensions were used as a pattern for CAD model. Then this model was imported into CFD environment where ambient medium characteristic were set up. FLUENT software performed calculations and measurement of aerodynamical characteristics of vehicle dependent on height and angle of chassis.
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The comparison of Bergmann and Annaburger traffic systems in basic agriculture industry companies.
HAVLÍK, Josef
This thesis compares two tractor traffic exchange systems, Bergmann and Annaburger, in two companies of basic agriculture industry. Tractor traffic systems are composed of towing and exchange vehicle which can be a carrier of several types of vehicle body. Bed, spreader and cistern are concerned in this case. Engineering chracteristics and operational experiences of every single exchange system were compared. Futher functionality, time demandingness of body exchange, machine operating comfort, failure rate and service security were also compared. One of the most important criteria for ranking of exchange systems is usage of every single body and capital and operating costs analyses which are also a part of this thesis. Both of exchange systems are on a high technical processing level but the Annaburger company offers better control system in basic version then the Bergman company. As a result we can say that the Annaburger machines are ingeniously constructed and are more popular as well. Costs benefit analysis has been done. Exchange traffic system Annaburger HTS 22.79 was found to be cheaper by 22, 82 CZK for one carriage kilometer and by 10,05 CZK for ton and kilometer then expensive competitive Bergmann Vario440.
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