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Rear Axle Optimization of SIGMA Sports Car
Repka, Martin ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This master’s thesis deals with analysis and following optimisation of a Sigma TN sports car suspension. Knowledge of vehicle dynamics and strength of materials was used during the optimisation. Kinematic and force analysis was carried out in software ADAMS Car. A FEM analysis was processed in Ansys Workbench environment. Three design concepts were worked out, in which Topology optimisation also found use.
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Conversion of Car Front Suspension
Chaura, Václav ; Porteš, Petr (referee) ; Hejtmánek, Petr (advisor)
This diploma thesis is focused on the design of the conversion of the car front suspension for racing purpose. Existing suspension solution is described by analyse static and kinematic quantities. Furthermore, a change of suspension is proposed to improve the driving characteristics of the vehicle, where the kinematic, dynamic and strength analysis of the newly designed suspension is performed. The conclusion summarizes the comparison of the original and the new suspension design.
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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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Vehicle Front Wheel Carrier Behaviour Analysis
Baxant, Roman ; Janoušek, Michal (referee) ; Ramík, Pavel (advisor)
Master’s thesis is focused on a design of front uprights for Dragon 8 racing car of TU Brno Racing Formula Student team. This thesis follows up the bachelor’s thesis called “Race Car Front Wheel Carrier Design”. Discussion about team’s recent upright and component designs is followed by a model creation with use of topology optimization. Final geometry is simulated in FEA software. Design of the upright is then compared to the previous designs and also to its substitute produced with milling machining process.
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Casted Formula Student Upright
Doležal, Tomáš ; Prokop, Aleš (referee) ; Janoušek, Michal (advisor)
Bachelor thesis deals with a design of casted upright for Formula Student vehicle Dragon X. Casting method used for the purpose of this thesis was selected by review of relevant scientific literature. The upright was then structurally designed and strength calculations were made. Main criterion of the design is minimum compliance with meeting the required weight. Final design is compared with the design of the previous generation of vehicle.
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Stand-up power wheelchair
Juříček, Václav ; Maňas, Pavel (referee) ; Černý, Michal (advisor)
This thesis deals with the structural design and manufacture of special power wheelchair prototype in collaboration with company Brano. Remarkable feature of this wheelchair is the ability to pull its user to an upright position, offering the greater independence, self-sufficiency and medically positive impact on physical functions. The content of this thesis is devoted to a search of the current state of knowledge in the matter, structural analysis of complete wheelchair assembly with a detailed description of each component including the important calculations and analyzes, as well as a description of the wheelchair testing. The conclusion presents summarization of all the results in structural, technological and economic terms.
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Formula Car Rear Wheel Carrier Analysis
Oravec, Peter ; Porteš, Petr (referee) ; Ramík, Pavel (advisor)
This diploma thesis is focused on Formula Student upright analysis using final element method. The main goal is to review an effect of different boundary conditions on stress and deformation. Nowadays, the topologic optimization is a commonly used tool for design process of the upright, to create the lightest and the most rigid design possible. Boundary conditions, which should approximate reality really well, are one of inputs to topological optimization.
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Optimization of axle carier for formula student for SLM fabrication
Vaverka, Ondřej ; Růžička, Bronislav (referee) ; Koutný, Daniel (advisor)
This diploma thesis deals with design of axle carrier for Formula Student. The axle carrier is topologically optimized and additively manufactured with Selective Laser Melting technology. Material for its production is aluminium alloy AlSi10Mg, which has worse mechanical properties than commonly used high-strength alloys. Therefore the aim was, by using topology optimization, to design a component, which would have comparable properties with milled component. The stress strain analysis was carried out by the finite element method and maximum deformation and safety coef-ficients were acquired. The prototype was made and its dimensions were controlled by optical digitization, which proved accuracy of manufacturing. The strength calcu-lations were verified by special testing device and photogrammetry measurement. The load during the tests was 20 % higher than in the analysis and no limit state was observed. This verified its safety and functionality.
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Formula Car Rear Wheel Carrier Redesign
Okáník, František ; Porteš, Petr (referee) ; Ramík, Pavel (advisor)
The thesis consists of rear wheel suspension design for light Formula Student racing car, especially design of upright, wheel hub and other parts of the assembly. Design was done in CAD software PTC Creo 2.0. Thesis also mentions calculation of critical wheel loads, wheel bearing life calculation and wheel loads during the race as well as stress analysis in Ansys Workbench and fatigue life analysis.
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Design of topologically optimized upright for pneumobil race car
Mende, Milan ; Červinek, Ondřej (referee) ; Vaverka, Ondřej (advisor)
This thesis deals with the design of lightweight front uprights of pneumobile Javelin using topology optimization, followed by manufacturing by additive technology Selective Laser Melting. Aluminium alloy AlSi10Mg was used. Topology optimized parts should have met the requirement of minimal safety factor equal to 2, therefore the stress strain analysis was performed using FEM. The maximal deformation was determined and the safety factor obtained. Two unsymmetrical uprights were designed due to parameters of the brake system. The precision of manufacturing was verified by optical digitization. Machined uprights were mounted on the pneumobile and tested directly on the vehicle. No limit states were observed during testing and subsequent races, so they proved to be fully functional. Weight of the left upright was reduced from 1 609 g to 758 g, the right one was lightened to 741 g.
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