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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.
111

Stroj pro hydroforming trubek z neželezných kovů / Hydroforming machine for non-ferrous material tubes

Ocelík, Jakub January 2012 (has links)
Master`s thesis deals with unusual high-pressure-fluid forming technology – hydroforming. There are discussed factors, which are affecting forming process, and there are made conclusion of it for machine design process. There is also made an evaluation of tube hydroforming technology in nowadays. The objective of thesis is to design new forming machine for tube hydroforming and for use in bicycle frames design. The machine is to be determined for manufacturing series up to 1000 pieces. Based on calculations and discussion of hydroforming technology, the best design solution is chosen. Machine is designed as modular conception with pressure multiplication of forming fluid right in die cavity. There is no need to use high pressure pump for forming fluid, used in common machines for tube hydroforming. This leads to cost reduction and so the objective of thesis is accomplished.
112

Posouzení únosnosti rámu hlavní kočky mostového licího jeřábu o nosnosti 270/63t – 21m / Assess the resistance of the main frame casting cat bridge crane with loading capacity 270/63t - 21 m

Olešovský, Michal January 2012 (has links)
The topic of my Diploma’s thesis is a fatigue analyzing and judgmenting of main frame casting cat bridge crane. Use the beam model and thin shell model for comparising. The thesis contains of both of computation model. The loading states results of computation model are attachmented of this thesis. This diploma’s thesis was created for Kralovopolska a.s. company.
113

Zadní rám lesní vyvážečky L520 / Rear frame of Forwarder L520

Koumar, Martin January 2013 (has links)
This master’s thesis deals with strength analysis rear frame of forwarder LVS 520 and propose modifications of this frame. The main part of this work is strength analysis of the supporting frame of the original construction by the help of the finite elements method. Further the design of suitable structural modifications and strength analysis of the modified construction of frame. This master’s thesis has been prepared with Strojírna Novotný s.r.o. company cooperation.
114

Konstrukce malé vertikální CNC frézky / Design of small vertical milling machine

Michele, Jiří January 2013 (has links)
This diploma thesis designs a small vertical CNC milling machine. The thesis includes selection of suitable structural design of the machine based on market analysis and requirements. The listed components, constructional calculations and 3D model are chosen in order to minimize the costs.
115

Konstrukční návrh jednoúčelového stroje na lisování valivých ložisek do kladkovnic / Design of single-purpose machine for pressing bearings in pulleys

Roupec, Michal January 2013 (has links)
Purpose of this thesis is to make constructional modification of single-purpose pressing machine for Huisman Konstrukce, s.r.o. company. Present machine is non-operational and not enough powerful for present requests of workshop. Intended modifications are to describe present condition of machine, find present requirements and design simple modifications. All modifications are checked by calculations and sketched in shop drawings. There were also made alternative options of modification to show machine more versatile and automatic.
116

Konstrukce multifunkčního obráběcího centra / Design of multi-functional machining centre

Cvejn, Jiří January 2013 (has links)
The purpose of this diploma thesis is a design of frame, crossbar, transverse feed, sliding feed of multifunctional machining center. In the first part, there is a brief research of history of machine tool conducted, division of machining centers, materials for frame construction, alternatives of drives of sliding axis. Further, I carry out an analysis of parameters of compeeting machine tools, from which I selected the parameters of our machine. Frame project of the machine, propulsion of axis X and Y, kinematic connection of axis X,Y,Z. Frame of machine is analysed by Finite Element Method. Over the scope of this work I suggest a solution for covering of linear axis as well as their measuring of actual position. 3D model of frame and drives of machine are included in this work. A complete formation has been introduced into the immersive virtual reality environment.
117

Napěťová, deformační a spolehlivostní analýza svařované rámové konstrukce / Stress, deformation and safety analysis of the welded frame construction

Král, Jiří January 2013 (has links)
Diploma thesis deals with creating of computational model of welded frame to perform strain-stress analysis. Thesis aims at verification of welded joints and their possible changes. The next goal is to compare stresses obtained from calculation with respect to welding standard and FEM analysis.
118

Vůz pro transport odlitků / Transport truck for castings

Krbeček, Petr January 2015 (has links)
The diploma thesis deals with the construction design of rail mounted transfer cars. The first of the designed cars is equipped with the electrical drive and the second is non-driven and must be towed or pushed. This thesis contains description of main components of the transfer cars and their implementation. The next section deals with original construction design of the transfer cars. The thesis includes functional calculation of travel wheels, the design and check of the travel unit and the strength calculation of the connecting pin. Conclusion of the thesis deals with the strength analysis of the transfer car frame using the finite element method. The required technical drawings are attached to the thesis.
119

Vysokovýklopná lopata pro teleskopický manipulátor LM1345 TURBO / High loading shovel for telehandlers LM1345 Turbo

Dragan, Lukáš January 2014 (has links)
This diploma thesis follow up the structural design high loading shovel for telehandlers LM1345 TURBO by New Holland. The introduction processed basic characteristics and parameters of the machine and material which will be in operation most frequently transported by the shovel. The work includes static analysis load acting on the shovel and frame when the machine is operating, strength calculations and the design and control of the peg.
120

Posouzení rámu kočky mostového magnetového jeřábu 15t 27,5m / Analysis of crab frame of bridge magnet crane 15t 27,5m

Strommer, Bohumír January 2014 (has links)
The diploma thesis deals with crab frame of bridge magnet crane with lifting capacity 15t used in steel mill for handling billets. Thesis contains strength analysis and fatigue strength check of crab frame based on ČSN EN 13001. Strength analyses are made by using beam and shell models of finite element method. The diploma thesis was carried out in cooperation with Královopolská a.s. company.

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