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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.
11

Technologie výroby plechového dílu / Technology of production part of sheet

Bartusek, Břetislav January 2012 (has links)
The aim of diploma thesis is to design technology components production orders. For a given part of the technology will be used non conventional deep drawing Wheelon method. For manufacturing lengthwise recesses and consequent cutting of shaped holes using a plasma cutting. The suitability of technological applications will be tested using the cost functions.
12

Lávka pro pěší / Footbridge

Blaška, Jan January 2017 (has links)
The subject of the final thesis is timber footbridge for pedestrians and cyclists over the Desna river in Loucna nad Desnou village. The length of the footbridge is 30 m, width 3 m and height is variable from 4 to 5 m. The footbridge is covered with roof inclination of 20° in transverse direction and the roof is arch in longitudinal direction. Roofing is metal sheet. The structure is three-dimensional truss consists of two truss connected by rafters, floor beams and by members of bracing. The 2D-truss consists of bottom chord, top arch chord and webs. There are end posts made of streel bracing frames. The material of structure is mostly glued laminated timber, then timber and steel. The steel is used for connectors and steel bracing frames.
13

Jämförelse av material i presstativ / Steel grade evaluation for press frame

Hamngren, Philip January 2023 (has links)
Detta projekt bestod i att undersöka konstruktionsstålen S235JR och S355JR och dess skillnader i vikt, pris, hållfasthet och utmattning i ett presstativ, för att sedan kunna utföra en FEM-analys och utmattningsberäkning utifrån givna krav och begränsningar. Med detta som underlag genomfördes en designoptimering vid ett materialbyte från S355JR till S235JR för att bibehålla ett likvärdigt antal utmattningscykler för att kompensera för materialets lägre sträck- och brottgräns. Utifrån detta genomfördes en priskalkyl där materialens olika prissättningar togs i beaktning, såväl som ökningar i dimensioner som designoptimeringen medförde. Med detta som bakgrund kunde en optimering av materialval presenteras. / This project consisted of investigating the structural steels S235JR and S355JR and their differences in weight, price, mechanical strength and fatigue in a press frame, in order to perform a Finite Element Analysis and fatigue calculation based on given requirements and constraints. With this as a foundation, a design optimization was carried out when changing the material from S355JR to S235JR, in order to maintain an equivalent number of fatigue cycles to compensate for S235JR:s lower yield and tensile strength. Furthermore, a price calculation was carried out where the difference in pricing of the materials was considered, as well as the increases in dimensions that the design optimization entailed. Based on this, an optimization of the material selection could be presented.
14

Zděný bytový dům / Masonry Block of Flats

Recmanik, David January 2013 (has links)
This Master´s thesis is focused on block of flats project documentation. The documentation is worked for building construction. Emphasis is placed on structural, space, fire safety, thermal and acoustic requirements. Masonry building is secluded and has four floors, without cellared, with a gabled roof. The building is designed with eight flats and one of these flats is designed for persons with reduced mobility.

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