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Electric Powered Offroad Motorcycles
Kobza, Tomáš ; Šebela, Kamil (referee) ; Janoušek, Michal (advisor)
This thesis is focused on the study of off-road electric motorcycles, both currently available and prototypes under development. The work describes the history of electric motorcycles up to the present knowledge, construction issues, the types of drive units and batteries used. It compares an electric-powered motorcycle with a conventional-powered motorcycle.
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The Use of Inerter in Vehicle Design
Lanzendörfer, Tomáš ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This diploma thesis deals with the inerter application in vehicle’s suspension. The aim was to perform a theoretical analysis of its features, to compare its construction layouts, to create a multibody model of the car’s suspension and to analyse inerter’s effects while performing different driving manoeuvres. All analyses were performed by MSC Adams View software with a little support from Matlab. The quality of ride comfort and accessible traction force were increased by the inerter almost in every case, and dynamic load of the suspension was also decreased in some cases. The inerter is a device with high potential, but with high purchase costs as well, so further development and practical research is necessary.
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Design jig bending of thin sheets
Šrotíř, Petr ; Štroner, Marek (referee) ; Dvořák, Milan (advisor)
The aim of this master´s thesis is the design, proposal and production of a functional jig for technological testing of metal sheet by bending in the pre-production stage to the limit bend radius of the steel sheet up to a thickness of 2 mm, or in case of non-ferrous metal to a thickness of 3 mm. The required bending angle is in the range from zero to ninety degrees. The functionality of the jig will be verified by a practical testing of springing. The proposal will be supported by technological and economic calculations and technical - economic evaluation.
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Multi-body model of a motorcycle suspension
Kotas, Jakub ; Lošák, Petr (referee) ; Březina, Lukáš (advisor)
This bachelor's thesis deals with the rear wheel suspension of a motorcycle. Theoretical basics of the suspension design and terms, essential for the understaning of the work, are breifly explained. A review of contemporary used spring, shock-absorber and suspension system types is presented.
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Design of conventional motorcycle swingarm made from aluminum alloy
Adlof, Michal ; Tobiáš, Martin (referee) ; Zháňal, Lubor (advisor)
This bachelor thesis deals with the proposal of the swingarm from aluminium alloys. The theoretical part is devoted to a closer description of the swingarm. Here, the older ways of wheel deposition are described, followed by a comparison of the four basic variations of the swinging forks. The practical part of the thesis is then focused on the design overhaul of the steel swingarm. In the next part, the calculations of forces and stress analysis are presented. Subsequently, the original steel and redesigned aluminium swingarm are compared. And finally, the complete drawing documentation needed for the production can be found in the annex.
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Front Axle of a High-performance Sports Car
Hrudík, Jan ; Blaťák, Ondřej (referee) ; Drápal, Lubomír (advisor)
Tato diplomová práce byla psána při studentské zahraniční stáži, pod záštitou Evropské Unie – program „ERASMUS Student Mobility for Placement“. Stáž byla absolvována mezi prosincem 2010 a květnem 2011 ve společnosti a.d.Tramontana, mající sídlo v Palau de Santa Eulália, Španělsko. Pro kompletní návrh podvozku a odpružení jakéhokoli vozidla je nezbytná znalost mnoha technických disciplín. Tato diplomová práce se zabývá dvěma z nich – odpružení a řízení. Nejprve je rozebrána teorie, na kterou se může navázat v praktické části práce. Velká pozornost byla věnována srozumitelnosti textu a názornosti obrázků, bez zbytečných detailů, avšak bez vynechání důležitého. Tuto práci je tedy možné užít jako prvního kroku před návrhem podvozku. V další části je popsáno, jak byla probraná teorie využita při návrhu řízení u skutečného vozu, přičemž největší pozornost je věnována Ackermannově teorii řízení a geometrii zabraňující samořízení při propružení. V závěrečných částech je pozornost věnována ukázce některých z každodenních činností v malosériové výrobě automobilů – jde o zjištění maximálně možného pohybu kola při propružení a proces výroby příčných trojúhelníkových ramen včetně návrhu jejich připevnění k šasi.
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Suspension Systems of Commercial Vehicles
Němeček, Vojtěch ; Dlugoš, Jozef (referee) ; Fojtášek, Jan (advisor)
This thesis follows up suspensions of lorry types. Thesis contains comprehensive overview of all commonly manufactured springs and shock-absorbers. Thesis is divides into five main parts. The first chapter is about oscillations, quality of suspensions and about other points connected to this theory. The second chapter has detailed overview of main types of suspensions. All types of currently used suspensions are listed, including coil suspensions, leaf suspensions, air suspensions and also shock-absorbers. The third chapter combine suspensions on different types of axles with their structure. The fourth chapter contains future of suspensions and electronic systems. In the conclusion is mentioned subjective evaluation of different types of vehicles
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Bicycle multipurpose trailer
Polák, David ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
This work deals with an overview of bicycle multipurpose trailers, which are available on the Czech market and structural design of my own truck for combined cargo transport. It also contains valid legislation for road use, basic calculations and drawings of my own design.
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Chassis Design of Off-Road Buggy
Richter, Vojtěch ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
This thesis is focused on the front and rear suspension of the off-road buggy. For the front suspension is compared the concept with and without pushrod with respect to the kinematics parameters and the damping parameters. For the rear axle, there are three concepts that is compared, especially multilink suspension, double wishbone, and swing axle. Finally, structural design and dimensioning for front axle is performed.
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