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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Pavilon šelem v zoologické zahradě Lešná / The pavilion in the zoo Lešná

Petrík, Tomáš January 2013 (has links)
The subject of the diploma thesis is a processed design of a steel construction of a pavilion shaped by spherical segments. The pavilion has exhibition purpose as a part of the zoological garden Lešná, and is intended for African beasts. The design meets architectonical requests - roundness and luminosity. A shape of the pavilion consists of three intersecting cupolas with a frontal curved cut out for glass facade. Construction of the pavilion consists of the radial arranged arched ribs with transversal bars, which are supplemented by horizontal purlins. Forehead of the pavilion is formed by columns and girts. Cladding is designed in combination: aluminum profile and insulated glass. Comparison of alternative steel structure solutions is also a part of the diploma thesis.
52

Administrativní budova / Administration Building

Frieda, Jan January 2014 (has links)
This thesis aims to design a bearing composite steel structure for five-storey administration building with ground plan dimensions 35,00 x 50,00 m. Designed building has L-shaped plan, flat roof and attic all the way around. The largest part of the plan area occupies office zone with dimensions of 48,60 x 18,90 m. Contiguous zone communication and sanitation has dimensions of 13,50 x 15,90 m. Floor height is designed 3,60 m, the total height of the building is 18,70 m. Composite steel floor structure consists of transverse primary beams and hinge-connected secondary beams. Integrated formwork (trapezoidal sheet) has ribs oriented perpendicular to the secondary beams. Coupling is bidirectional. Construction will be done in two variants. Variant No.1 assumes primary and secondary beams (at the columns) hinge-connected with columns. In variant No.2 will be frame connection between primary beams and columns and together they will create 2D transverse frames with hinge-connected secondary beams. The supporting structure of the roof is designed similarly to ceiling, but reinforced concrete slab will be replaced with bracing in the roof plane and self-bearing rib sandwich panels. Vertical sheathing of the building provide sandwich panels and strip windows. The type of steel is S355. The building is designed for the site Hradec Králové. Standards and documents used in design of the bearing structure are included in the list of sources. The result of this work is a static analysis with an assessment of all elements of the selected (best) variant of the structure, drawing documentation and technical report.
53

Modulární systém lineární osy / Modular linear axis

Chlapečka, Tomáš January 2014 (has links)
This thesis contains a structural design of linear axis with a stroke up to 800mm and a maximum load of 800N. The thesis also deals with a modular assembly system of the linear axis based on the structural design. Linear axes can be fitted with rolled, whirled and grinded ball screws with thread pitch 5, 10, 16mm and rolled trapezoidal screws on pitch 4 and 8mm. The stroke of the linear axes can be selected in the range from 200 up to 800 mm, with a maximum load of 800N in all linear dimensions. The feed of linear axis is provided by shaped rolling guide way and four trucks. The modular system offers two servo motors with direct and indirect measuring four stepper engines with indirect measuring. The thesis also includes strength and functional calculations of principal components, graphs of the possible load on linear axis in different positions , durability of the ball screws, maximum speed and feed rate of the chosen screws, data sheet, 3D model, drawings and assembly drawings of the nodes.
54

Stavěcí mechanismus štěrbiny kuželového drtiče / Slot adjusting mechanism of cone crusher

Huňka, Jan January 2015 (has links)
This master’s thesis deals with the obtuse-angled cone crushers especially about design of the individual parts of the adjustment mechanism. Most space is devoted to functional calculation and subsequent technical construction of the new design of obtuse-angled crusher where the output setting is adjusted using the motion thread and hydraulic locking system for compensating the thread clearance. The parameters are chosen with regard to the already established older types of cone crushers produced by PSP Engineering, a.s. An inseparable part is the calculation verifying the functionality of the motion thread and gearing. Another essential part of this work are stress analysis of the slot adjusting mechanism design using finite element method and considering two states - adjusting of the slot and crushing itself.
55

Numerické modelování přepadu přes nouzové přelivy / Numerical modelling of flow over auxiliary spillways

Kostelecký, Jiří January 2016 (has links)
The thesis deals with possibilities of numerical modelling of an overflow over selected types of auxiliary spillways and then the possibilities are verified in particular localities. In thesis, there is carried out the determination of capacity of selected spillways by using several methods: the calculation of the overflow equation, one-dimensional and two-dimensional numerical models and physical model. The author created parametric analysis to each single method. Parametric analysis represent various hydraulic conditions. Subsequently, there is possible to express the effect of parametric analysis. The author makes a comparison of water levels received by mentioned methods set out under the specific hydraulic conditions by calibration of each model with the physical model. Finally, author recommends values of all coefficients which have an impact on results of numerical modelling of the flow over selected types of weirs mostly using like auxiliary spillways.
56

Rozhledna / Lookout tower

Jedzoková, Patricie January 2022 (has links)
The object of the diploma thesis is design and assessment of a steel lookout tower situated in Beskydy mountains. Two different variants were designed. The first variant is of square shaped plan and the second one is of hexagonal shaped plan. Both variants are spatial truss structures. They are shaped as hourglass. The variants were compared and the first one was chosen to be further developed. The lookout tower is 36 meters high and it is divided by floors. One floor is 3,6 meters high. The widest section is 8 meters, the narrowest section is 5 meters wide. The structure is pin-supported into concrete foundation. The concrete is class C25/30. The roof covering is made of trapezoidal sheet of class S280GD. Each steel element is made of steel of class S355.
57

Elementos de Semántica Denotacional de Lenguajes de Programación con Datos Borrosos

Sánchez Álvarez, Daniel 01 October 1999 (has links)
A fin de diseñar e implementar lenguajes de programación que tengan en cuenta el paradigma borroso modificaremos el lambda cálculo clásico, adjuntando a cada término un grado, y redefiniendo la beta-reducción, obteniendo que para que el nuevo cálculo verifique la propiedad de Church-Rosser la transmisión de los grados debe hacerse por medio de una función que sea una t-norma o s-conorma. Utilizando esta nueva herramienta diseñamos un lenguaje no determinista que satisface los requerimientos de la programación con datos borrosos. / With the aim of designing and implementing programming languages that take into account the fuzzy paradigm we will modify the classical lambda calculus by adding a degree to each term and by redefining the b-reduction. Thus, for the new calculus to verify the Church-Rosser property, the degree computed with can be made through a function that is a t-norm or an s-conorm. With this new tool we design a nondeterminist language that satisfies fuzzy dataprogramming requirements, and an example of its behaviour is shown.
58

Příprava a realizace sídla společnosti POLNA corp. s.r.o. v Třinci / Implementation of Registred Office of Company POLNA corp. s.r.o. in Třinec

Špilínek, Richard January 2019 (has links)
This master´s thesis deals with construction-technological project of administrative-production and storage complex in Třinec - Oldřichovice. It´s a new building of the main building, consisting of a two-storey administrative building and a one-storey storage hall, which is complemented by other sub-objects. The master´s thesis solves the realization of the building as a complex whole and in more detail focuses on vertical and horizontal supporting structures, made of steel elements and steel-concrete ceiling structure. An integral part of the project include studies of the realization of the main technological stages of the main building, technological regulations, complemented by assembly schemes, solution of transport routes and proposal of machine assemblies, site equipment design, time schedules, budgets, inspection and test plans and proposal of security measures for selected risks. The work is further supplemented by a specialized area that prepares the design and execution of intra-areal reinforced communications.
59

Obchodní galerie / Shopping gallery

Lorenc, Jakub January 2020 (has links)
The subject of this diploma thesis is the design and assessment of main load-bearing elements od the steel structure of shopping gallery in Hodonín. Part of floor plan is rectangular and rest of it is half-circled. Object's dimensions are 7é m x 147,75 m (and roof overhang 1,5 m on each side), the height of the ridge is 13,43 m and the height of the roof's dome is 22,70 m. It's a two-storey building. The load-bearing structure consist of pin-suported columns, in this case there is max. 8,5 m distance between them in direction of main frame. The distance between main frames is 9 m. The spatial rigidity of the structure is ensured with floor slabs and system of bracings. The cladding consists of sandwich panels, roof's fanlights and dome of glazed areas. Most of elements are made of S355 steel.
60

Přední nezávislá náprava pro autobus / Independent front axletree of the bus

Moravec, Jan January 2008 (has links)
In those diploma work was solved problems of independent trapezoidal axletree for low-floor bus - NB12 CITY firm SOR Libchavy s.r.o . Work was divided into two main features: solving wheel-suspension kinematics and strenght calculation sorted parts of wheel suspension by the help of finite element method. There was effected fatigue calculation sorted parts of wheel suspension according to „Resetova metoda“ of predicting fatigue damage flowing from so – called cutaway methodics of fatigue tests at the close of this work.

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