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Design of the Differential Test Rig for Testing in Anechoic Chamber
Ivanič, Michal ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
The diploma thesis describes the design of a test stand for experimental determination of vibroacoustic parameters of a part of the powertrain system. Thesis contains a research part, describing the problems of the drive system, vibroacoustics, measuring devices and also the division and the description of test stands. At the same time, the reasons for choosing a closed loop test stand are explained. Thesis also includes the results of analytical calculations and numerical results of FEM methods performed using ANSYS software, as well as drawing documentation of individual parts.
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Konstrukce pohonu všech kol osobních automobilů
Vančatová, Šárka
Diploma thesis deals with design of all-wheel drive used in cars. First of all it describes calculation of driving boundaries such as highest elevation and maximal acceleration. Equations of motion, air effects, radial reactions, and peripheral forces are used in calculations of the boundaries. The next part describes components of all wheels, transfer case, and transmission gearbox. The last part of the theory deals with four wheel drive. This subchapter is divided to three smaller parts: permanent drive, self-connectable drive, and manually connectable drive. In the first subchapter of permanent drive is described fluid coupling and Torsen's differential. In the second subchapter of self-connectable drive is description of Viscomatic and Haldex transfer cases located between the axles. The last subchapter deals with electronically controlled lamellar clutch. The end of this chapter also briefly describes hybrid drive as a conception of four wheel drive. The practical part of this thesis deals with measurements done with Škoda Superb on the chassis dynamometer which belongs to Mendel's university in Brno. There are also measured data from calibration text, those data are used to determine a passive losses which are necessary for the testing of brakes. Those data are also processed and evaluated. The change of passive losses according to the load is also evaluated. The data from power test, and distribution of power on the front and rear axle are also evaluated. The measurements were done with three different loads. At the end of the thesis are compared measured data from the similar measurement done on Mitsubishi Lancer Evo.
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Automotive differentials
Holeňa, Vít ; Píštěk, Václav (referee) ; Kaplan, Zdeněk (advisor)
This bachelor thesis is about automotive differentials. The aim of thesis was to create an overview of various types of differentials, primarily self-locking. First chapter is dedicated to transmission of which the differential is a part of. Second chapter is about differential function in general. In third chapter, attention is paid to self-locking differentials, especially to Torsen differentials. Last of all, fourth chapter is about active differentials and systems, which help us to overcome disadvantages of differentials mentioned above.
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Automotive differentials
Zavadil, Roman ; Píštěk, Václav (referee) ; Kaplan, Zdeněk (advisor)
This bachelor thesis deals with differentials used in cars. The thesis contains a comprehensive set of knowledge about differentials used in cars and introduces the reader to the issue of differentials in terms of construction, disassembly and their simplified creation. The first part of the thesis divides differentials according to construction and clarifies their function. The second part deals with the disassembly of the final drive case with a bevel differential. The final third part describes the creation of a spur-type differential model.
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Personal car differentals
Csémi, András ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This bachelor’s thesis deals with the topic of car differentials with special attention to self-locking differentials. The first part is dedicated to the description of the powertrain. Then the main part is about the differentials, their division, the description of the constructions and the principle of function, with a focus on self-locking types. The aim of the thesis was to create a summary of self-locking differentials.
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Human Powered Vehicle Differential
Andrlík, Ladislav ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The aim of this diploma thesis is the design of the differential of a road vehicle driven by a human force, intended for daily driving in the city with a focus on older users. The vehicle for which the differential is designed is strictly a pedal tricycle. The introduction of this thesis briefly outlines the history of pedal tricycles. The second chapter explains some technical terms relating to tricycles and bicycles in general. Further chapters of the research part describe the current structures of tricycles, the principle of a differential function in motor vehicles and design possibilities of the differential for pedal tricycles. The practical part of my work includes the design of a differential for pedal tricycle, the strength analysis of selected parts of the differential, drawings of the differential assembly, production drawings of selected parts and proposal of the torque transfer from pedals to the differential.
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Homotopické struktury v algebře, geometrii a matematické fyzice
Černohorská, Eva ; Markl, Martin (advisor) ; Somberg, Petr (referee)
Title: Homotopic structures in algebra, geometry and mathematical physics Author: Eva Černohorská Department: Mathematical Institute of Charles University Supervisor: RNDr. Martin Markl, DrSc., Institute of Mathematics of the Academy of Sciences of the Czech Republic, Mathematical Institute of Charles University Abstract: The aim of this thesis was to generalize the result that associative algebras on finite dimensional vector spaces can be described using differentials on free algebras. This result is limited by the duality of vector spaces. If we assume that the underlying space has a linear topology, then we can use the duality between discrete and linearly compact (profinite) vector spaces. To generalize the notion of an algebra, we need to recall the completed tensor product on linear vector spaces. Since this topics does not seem to be sufficiently covered by the literature, this thesis could serve also as a comprehensive text on linear vector spaces and their completed tensor products. We prove that also A∞ structures on linearly compact vector spaces could be represented by differentials on a free algebra. Keywords: Strongly homotopy associative algebra, linear topological vector space, Pontryagin duality, completed tensor product, differential
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Conception of terrain vehicles UTV
Máca, Jiří ; Vopařil, Jan (referee) ; Kučera, Pavel (advisor)
This review type bachelor thesis is dealing with conceptual solutions of Utility terrain vehicles. Individual chapters are describing main functional groups and different options of their construction. These options are analysed in terms of suitability for given application in utility and sport terrain vehicles, their manufacturing complexity and costs. Specific vehicles are mentioned only marginally.
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Formula Student Drivetrain
Odehnal, Jakub ; Svída, David (referee) ; Ramík, Pavel (advisor)
This master‘s thesis describes design of Formula Student Drivetrain, car evolution Dragon 4 and Dragon 5. There is shown an overview of the drivetrain parts used in category Formula Student. On that basis is made the new concept of drivetrain for the each car. Major focus is placed on the design of the differential mounting and chain tensioning mechanism. For the selected components was made stress analysis by FEM.
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Automatic Locking Differential
Kimlová, Anna ; Kučera, Pavel (referee) ; Blaťák, Ondřej (advisor)
This thesis consists of two parts. The first one contains a research about different kinds of divorces in tractors. There is also a description of a modelling in MATLAB, Simulink and Stateflow programs. The second part focuses on designing an algorithm of an automatic locking differential and connection front-wheel drive and its testing on a model of tractor. Furthermore the thesis solves an implementation process of the algorithm into the control unit.
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