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The assembly gap influence on the stress and strain at the radial ball bearing
Rašovská, Hana ; Prášil, Jiří (referee) ; Vrbka, Jan (advisor)
This master thesis deals with the influence of assembly clearance on strain and stress in the radial ball bearing. The theme of this thesis was commissioned by ZKL - Research and development, a. s. For six different assembly clearances and selected ball bearing was made force-loaded static analysis of global computational models. Subsequently was made a static analysis of local computational models loaded by strain according to the results of global models. The output of analysis of local models was sizes of stress, which led to the analysis of bearing with two other models of material. For the solution of the problem was used pre/post processor Patran and solver MSC.Marc.
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Strength and lifetime analysis of the hydraulic key lock
Klíč, Jan ; Majer, Zdeněk (referee) ; Vrbka, Jan (advisor)
Theoretical part of this master thesis is focused on the theory of fatigue life. The second part deals with the assesment of static strength the closing flap in front of water turbine. Futher fatigue analysis of the closing flap is performed considering corrosive environment. The aim is to verify the required service lifetime of 50 years.
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LABORARTORY BRNO
Petrík, Marek ; Vrbka, Jan (referee) ; Ponešová, Barbora (advisor)
The center of Brno is already full of all types of galleries and that is why i made just 30% of the exhibition space as is specified in the assignment and the rest is also considered in a solution that could help spawn Brno art. How have sociologists in their recent studies mentioned the transformation of the labor market is worth a new phenomenon, called coworking. We will more often work bursts and we will need work for more multiple employers at once. Several thousand supporters - Freelancers, found in this style of work and the sharing of popularity. Before working from home hey prefer shared coworking office. Platform of ART - Dynamic center for Brno - Laborartory!
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Stress and strength analysis of the bicycle crank arm of a non-circular profile
Valenta, Tomáš ; Dobeš, Martin (referee) ; Vrbka, Jan (advisor)
This bachelor’s thesis deals with analytic solution of torque of a rectangular profile bar. Solution stands on Prandtl’s theory of torque of non-circular cross-section bar. Stress is thought about shear stress which is given by torsional moment and shear force, further about normal stress which is given by bending moment and tensile force. Application for this problem is stress and strength analysis of of the bicykle crank arm. Calculation is solved with MATLAB software.
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Strain, stress and strength analysis of the frame construction.
Hrubý, Jaroslav ; Vlk, Miloš (referee) ; Vrbka, Jan (advisor)
This work deals with the stress and strain calculation as well as with the safety evaluation at the plane (2-D) frame loaded by the individual force F. The aim of this work is not acquiring the use of cutting-edge computer programs to determine the stress and deformation, but to learn how to use practically the basic calculation methods being taught at the subject Strength of materials to get practical experience with the application of these calculation methods.
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Public facility centers in panel housing estates
Zvolská, Tereza ; Vrbka, Jan (referee) ; Mléčka, Jan (advisor)
Public facility centers were built at every housing estate as a background for a quality life, but they are not given much attention nowadays. At the same time, their central location, certain architectural qualities and load-bearing structure are good input attributes for the site's development. In my diploma thesis, I chose one such complex in Brno-Řečkovice to show on how to revitalize such objects. I make it a full-fledged part of the city district and at the same time a space that cerate its center.
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Strength design of the aircraft spur
Profota, Martin ; Vosynek, Petr (referee) ; Vrbka, Jan (advisor)
This master thesis deals with computational stress-strain analysis of the tailskid of airplane L410 NG with main focus firstly the check current design of the tailskid and then the design another design solution with the able to absorb as much as possible the deformation energy. Solution of this problem is performed using computational modeling utilizing numerical simulation of quasi-static and crash deformation load of the tailskid with using explicit Finite Element Method (FEM) in program ABAQUS v6.14. After the introduction with problem situation and tailskid assembly introductory part is devoted to the research study of various designs of the tailskid for different types of airplanes. There follows these theoretical general principles of thin-walled structures and buckling of them. Before the creating of the computational model itself, the explicit form of the Finite Element Method is better described. The conclusion of this thesis deals with the mutual comparison of the most advantageous design variants of the tailskid and the selection of the most suitable one of them for the airplane L410 NG.
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To Dvur Kralove by train - Transfer Terminal in Dvur Kralove nad Labem
Turčanová, Terézia ; Vrbka, Jan (referee) ; Ponešová, Barbora (advisor)
The task of this Bachelor thesis is to create an architectural and urban design of the transfer terminal in Dvur Kralove nad Labem. Therefore in my proposal, I design and integrate the transfer point into an existing built – up area, so it meets the demands of the 21st century passengers, encourages visitors to explore the city and meets daily needs and activities of the local community. Train and bus terminal together with various other services are combined under one roof to create a meeting place. The center of the area is an elevated glazed terminal hall that covers and connects various functions in the separate blocks within it. A distinctive unifying element of the entire terminal is the overlapping roof in the space around the hall and over platforms. The shape of pillars under the roof refers to the character of the industrial zone located nearby and the "lace-shaped" crossing of the ribs under the ceiling creates a specific atmosphere. The shelter over bus stops corresponds with the roof. Simultaneously it fills the interrupted street line on the Ulica 28. rijna street. The project of the area together with its surroundings also includes places for park greenery as well as for living that complement the missing public spaces in this part of town. The scale of objects is chosen with regard to the character of the site and its importance and location within the city, which has about 16 000 inhabitants.
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