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Development of transaxles in automobiles
Kubiš, Vojtěch ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
This bachelor thesis is concerned of development of transaxles in automobiles. Overview of types of axles is mentioned here as well as their working principles. Attention is also given to suspension and damping with description of how it works. In this thesis are described solutions of selected cars suspensions.
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Sheet Metal Stretch Forming Process
Lorenc, Tomáš ; Císařová, Michaela (referee) ; Peterková, Eva (advisor)
In this work, elaborated in the bachelor study, there is a general overview of the sheet metal stretch forming methods. The stretch forming processes shift the boundary properties of the materials and merge process of drawing and bending into one operation. That's why it's possible to do products from materials, which can not be possible to form by other methods in the same quality Positives of this technology are the minimization of cushioning, the production of complex, precise surface shapes, etc. The contribution of this work is a systematic summary of the principles that should be used as a tool for teaching or as a basis for the wider development of this method.
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Design of bending tool for V-bending sheet
Zedníček, Zbyněk ; Štroner, Marek (referee) ; Dvořák, Milan (advisor)
The object of the bachelor work is the design of the bending tool for V-bedning. The sheet segment of the shovel of the conveyor belt is assigned. The introductory part deals with the problems of preparation of the semi-finished product and the analysis of possibilities of bending technology. Then the suitable technology is chosen. In the next part there are introduced technological aspects of the design of the piece of the sheet component and there are made computatious for the design of bending and the preparation of the semi-finished product, minimum and maximum bending radius, suspension, bending power and work, computation of the straightened length of the component and the total consumption of the material. The design of the tool for bending of the segment is made on the basis of technological computations. Economical assessment of the production is made, material costs for the tool bending are introduced and the selling price of the shovel of the conveyor belt is determinated. The whole course of the design is summarized in the conclusion.
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Simulation modeling of a vibration absorber
Kukačka, Radek ; Vetiška, Jan (referee) ; Březina, Lukáš (advisor)
The bachelor thesis gives an overview of different design solutions to car shock absorbers. The rest of the thesis describes a simplified model of passive shock absorber and its optimization. The survey contains shock absorbers used in the present. There are various passive telescopic dampers and modern semi active and active electronically controlled damping systems. The second part includes several simplified models of passive dampers. There is described an optimization of the damper parameters with respect to the displacement of the primary mass for each of the models.
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Hydrodynamic dampers on the principle of magnetic fluid
Přikryl, Matěj ; Himr, Daniel (referee) ; Pochylý, František (advisor)
This bachelor's thesis deals with damping vibrations emerging due to the movement of a vehicle. The first section provides an overview of contemporary types of dampers with thorough explanation of the principle of hydrodynamic damper. This section also contains simulation of vibrating vehicle equipped with passive damper. Literature research of magnetic fluids and description of magnetoviscous phenomenon is presented in the second part, which freely continues to the topic of magnetorheological (MR) dampers. The final chapter firstly describes current hydrodynamic dampers based on squeeze film (SF) mode of magnetorheological fluid and at the conclusion the author's concept of SF MR damper is submitted.
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Study of the two-axle semi-trailers used in the agriculture
Szymeczek, Ondřej ; Hloušek, David (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor thesis deals with tandem trailers connected to tractors and their use in agriculture. Main part of the work is devoted to the structural elements and nodes of these machines. Another part I described by some national and foreign manufacturers of transport equipment used in agriculture. The remain part is devoted to the legislative conditions connected with this issue, the overview of technical parameters of individual product categories and their subsequent critical analysis.
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Proposal of manufacturing technology of bracket
Tůma, Vojtěch ; Schwarzer, Emil (referee) ; Dvořák, Milan (advisor)
The object of this bachelor thesis is to propose manufacturing process of the holder by using technologies of metal processing. The design of the holder of the headset for light sport aircraft is assigned. The first part of this thesis describes preparation of the semi-finished product by the material cutting, bending methods and final surfacing of the part. In the second section there are evaluated technological aspects of the part, made calculations for dimension of the developed shape of the part, cutting force and cutting work, the total material consumption, minimal and maximal radius of the bend, spring-back, bending force and bending work. The bending jig was then designed according to those calculations. Based on the price quotation for the jig acquisition was performed the economical evaluation and was set the sale price of one piece of the headset holder. The process of the design is then briefly summarized in the conclusion.
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Springing and Damping Systems of Army Vehicles
Kochánek, Jiří ; Hejtmánek, Petr (referee) ; Blaťák, Ondřej (advisor)
Bachelor's thesis is oriented at springing and damping systems of army vehicles. It describes commonly used systems of springing and damping, their advantages, disadvantages and shows examples of constructional solutions for army vehicles. It also contains conceptual design of springing and damping system of an armoured 8x8 army vehicle.
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