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Design of a torque vectoring control system for a Formula student vehicle
Gadas, Petr ; Blaťák, Ondřej (referee) ; Míša, Jiří (advisor)
Tato diplomová práce se zabývá problematikou zvýšení výkonu vozidla při jízdě zatáčkou pomocí aktivního řízení hnacího momentu závodního vozu kategorie Formule Student. Náplní práce je návrh, simulace a následně testování algoritmu, který na základě zvolených parametrů řídí rozdělení momentu na hnané nápravě, aby bylo dosaženo optimálního stáčení vozidla pří zatáčení. Systém byl navržen na základě cíleného dynamického chování vozu při průjezdu zatáčkou. Pomocí virtuálního prostředí byly obdrženy simulační klíčové výsledky vlivu na chování vozidla, které byly následně validovány testováním na trati. Celkovým cílem práce bylo navýšení jízdní rychlosti a kontroly and vozidlem během zatáčení, s výsledkem snížení jízdního času na trati.
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Sandwich Insert Design of the Formula Student Monocoque
Velfl, Tomáš ; Šplíchal, Jan (referee) ; Löffelmann, František (advisor)
The bachelor thesis is devoted to the insert joints and wheel suspension attachments on the racing frame of a Formula Student vehicle. First, research was done to obtain the necessary knowledge on the subject. Then the external loads stressing the joints were experimentally and computationally determined. Before starting the actual design of the attachments, the effect of introducing local loads into the sandwich structure of the monocoque was investigated, firstly on small calibration samples. The first phase of testing was to verify the failure mechanisms, the interaction between the different components of the composite sandwich and to test different attachment designs using different materials. Based on the data obtained, the material libraries were refined, and computational models were developed and extended by parametrization. Thus, in the next step, the final designs of the individual suspension points meeting the predetermined objectives were iteratively created. During validation tests, the functionality of the design and sufficient oversizing were demonstrated. Technologies such as CT scanning were also used. The results were evaluated to determine further testing options and further improvements to the current solution.
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Numerical modelling of the Formula student powertrain
Krmíček, Antonín ; Ušiak, Michal (referee) ; Šebela, Kamil (advisor)
This diploma thesis deals with system modelling of Formula Student powertrain unit. System models allow the interactions between the different parts of the powertrain to be tracked, allowing the components to be optimized for the desired drive cycle. A system model of the powertrain is built based on measured data or calculations of component parameters. This can predict limiting factors such as maximum available motor torque, component temperatures or battery discharge. The model is validated against runs on the test track. Furthermore, the model is modified to consider the changes expected in the next generation of the vehicle. It is assumed that the model will be used in the future not only for the design and optimization of powertrain components, but also for lap time simulations as part of a virtual vehicle model.
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Formula Student Front Wheel Carrier Design
Černý, Filip ; Porteš, Petr (referee) ; Ramík, Pavel (advisor)
This thesis deals with the design of the front wheel hub and upright of Formula student car. First component is a short search on Formula Student event and comparing diverse structures of upright for use in both racing and road cars. It also includes design of hub and upright in the CAD program and computational model of the upright created in FEM program specifically for stress analysis in selected conditions. It also includes optimization of the overall proposal.
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Torsional stiffness of Formula Student frame
Jurnečka, Ladislav ; Ramík, Pavel (referee) ; Porteš, Petr (advisor)
Diploma thesis deals with detection of torsional stiffness with using photogrammetric equipment TRITOP device and subsequent comparison with created computational model in FEM software. Measurement and calculations were accomplished according to tutorials, which are the most effective and giving the most accurate results. Next the optional method of measurement of torsional stiffness in practice is formed for future formula series called Dragon. The reasons of different results and suggestion of optimalization are sum up in the end of the thesis.
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Topological Optimization of Steering Holder
Ženčák, Jan ; Janoušek, Michal (referee) ; Ramík, Pavel (advisor)
This thesis deals with the design of steering holder for a race car in the category Formula Student using topology optimisation and analysis of this design. The objective of this thesis is gaining knowledge about topology optimisation and application of this knowledge to the design of a replacement of the steering gearbox and its holder.
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Front Wing for Formula Student
Vrubel, Vít ; Šebela, Kamil (referee) ; Janoušek, Michal (advisor)
This work deals with the verification of the design of the front wing on the Formula Student car. The work is divided into three parts. In the first, a search of the wings used in the Formula Student competition is performed. The second part is devoted to the experiment and the last part is devoted to CFD calculations and comparisons with measured values. Computations were done on computational resources supplied by the project „e-Infrastruktura CZ“ (e-INFRA LM2018140) provided within the program Projects of Large Research, Development and Innovations Infrastructures. Computational resources were provided by the ELIXIR-CZ project (LM2015047), part of the international ELIXIR infrastructure.
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Formula Student Wheel Design Using Composite Materials
Jelínek, Josef ; Janoušek, Michal (referee) ; Ramík, Pavel (advisor)
This bachelor thesis represents a step for performance improvement of a Formula Student race car monopost of TU Brno Racing team at Brno University of Technology. A detailed research focused on light automotive wheels and suitable materials is only a beginning of this work. Its main part is choosing a light weight wheel concept, creation of a new wheel design and its simulations by finite element method. A deep analysis of vehicle dynamics aims to find the most accurate input data for the simulations. The development of a new wheel is intended to cooperate with the latest monopost generation, Dragon 7. The best choice including the desired material properties is made to use composite materials. A new CAD wheel model had been created. It was recreated into a simulation model and analysed afterwards. The analysis output data are compared to some of the best alternatives among the market and the results confirm this project has a great potential. Therefore the next procedure is projected.
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Design of Formula Student Car Wheel Carriers
Chlud, Martin ; Janoušek, Michal (referee) ; Ramík, Pavel (advisor)
Master’s thesis focused on design and construction of front uprights for Formula Student racing car. Topology optimization and FEM analysis will be used to design the uprights with higher stiffness and minimal weight difference compared to the last model. In the FEM analysis loads will be applied from wheel side and from suspension side. Design of the upright then will be compared to the previous designs especially to safety factor, weight and cost.
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Rocker for Formula Student Vehicle
Šprta, Petr ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
This thesis deals with a prototype of the rear suspension rockers of the racing monopost Dragon 10th generation, which is being developed at the Brno University of Technology within the international educational project Formula Student. Based on the research, the technology method of casting has been chosen for this purpose. The input for the prototype of the rocker arms is based on the impacting forces and suspension points given by kinematics of the vehicle. Based on these facts, topology optimization of the shapes has been conducted and the components have been modelled accordingly. Followingly, optimization focused on minimizing weight, deformation and stress were conducted using the reverse loading of modelled components. The last part of this thesis is concerned in the comparison of rear rockers of the last year‘s monopost Dragon 9. Taking into consideration the change of the concept, the mechanical properties of rockers are slightly better.
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