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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.
581

Konstrukční návrh průběžného mísiče o výkonu 3-5 tun/hod / The design of sand mixer with output range 3-5 TPH

Haluza, Lukáš January 2012 (has links)
The subject of this diploma thesis is engineering design of the continuous mixer with output range 3-5 TPH. Mixer is instrumental to mixing sand mixture intended to non-permanent sand forms in foundry. Proposed construction has to fulfill the specified functional requirements and parameters. Parts of solution are also necessary analytical and FEA calculations.
582

Hydraulický pohon kontejnerových nůžek CNS 730/190 MTC / Hydraulic drive of the CNS 730/190 MTC container shears

Nezbeda, Filip January 2012 (has links)
This work includes design of the drive hydraulic shears. The objective is to replace diesel-engine for electric motor. There is a description of the machine and its technological shearing process, types of hydraulic drives and their applications. The work includes the design, description and calculation of hydraulic power unit with an electric motor in two versions. Then there is evaluation of alternatives and select one to which they are processed further structural elements.
583

Nová koncepce hydraulického pohonu CPB / New conception of hydraulic drive CPB

Bártek, Petr January 2013 (has links)
The main objective of this master's thesis is to design the new conception of hydraulic drive of the baling press CPB 100 with application of modern tendencies in the field of hydraulic engineering. This thesis contains design and calculations of new hydraulic drive, hydraulic circuit diagram and the list of hydraulic elements that are used. Moreover this thesis includes the design of an electrical control and the design of hydraulic block and manifold.
584

Posouzení tělesa převodovky a rámu pohonu kolesa kombinovaného skládkového stroje / Analysis of gearbox housing and drive frame of bucket-wheel stacker/reclaimer

Kuhejda, Lubomír January 2014 (has links)
This master’s thesis deals with the structural analysis of the gearbox housing and drive frame of bucket-wheel stacker/reclaimer. Theme is designed by Vítkovice Gearworks a.s. Objective of the work is to determine the size of the forces in the gears, bearings and perform strain stress analysis. The main part of the work is focused on creating finite element model in software NX I-Deas. The solution and evaluation is performed in software MSC Marc.
585

Konstrukce konzoly s polohovacím stolem pro konzolovou frézku / Design of a console with adjustable worktable for a console milling machine

Betlach, Jakub January 2014 (has links)
This diploma thesis includes research in the structural parts of milling machines and designs of a console adjustable. This diploma thesis includes necessary calculations, adjustable worktable assembly drawing, selected drawing documentation, 3D model and model in an immersive virtual reality.
586

Stanovení účinnosti rekuperačního hydrostatického pohonu / Determination of efficiency of hydraulic drive with recuperation

Kobza, Michal January 2014 (has links)
In the first part of the thesis is determined efficacy criterion for the individual operating modes of the experimental stand with energy recovery and subsequently are evaluated the records of individual measurements. Energy savings are calculated with using energy recovery. The second part describes the process of digitizing relative fuel consumption map of the engine. Results are confronted with a real application engine in the road roller Ammann AP 240 H. In addition, the master thesis describes the creation of hydrostatic converter block in the program MATLAB/Simulink 2012b. Creating block can be used in the development of simulation models.
587

Návrh energeticky úsporného hydraulického systému pro silové zatěžování pohonných soustav vozidel / Energy efficient hydraulic system design for force loading of vehicle drivetrain systems

Robenek, Vít January 2015 (has links)
The thesis focuses on a hydraulic system design for a specific application of hydrostatic drive with regard to energy efficiency of proposed solution. Standard hydraulic and electronic components are used, mostly products of Bosch Rexroth. The aim of the thesis is to carry out a complex design from mechanic through hydraulic up to the electronic part of the system. After a short introduction in the beginning of the thesis is the particular application described and analyzed. Then the elemental principles of hydraulic devices and systems are explained. In the following part the actual solution is presented, which expands to several different alternatives. These alternatives are compared according to set criteria and the selected alternative is then further developed. At the end of the thesis, the outputs are evaluated and the direction of further possible improvements in the design is outlined.
588

Disk na bázi paměti FLASH / Disk Drive Based on FLASH Memory

Dvořák, Miroslav January 2012 (has links)
The work deals with flash technology, the history of its development, current application of this technology and discusses the advantages and disadvantages of flash memories. It describes the integration of flash technology into mass storage devices and commonly used mechanisms that suppress the flash shortcomings for such application. The next part of the work focuses on analysis of commonly used buses for flash storage devices. Based on these theoretical foundations, text presents way to develop own flash based disk. The work focuses mainly on finding the most accessible platform for connecting the disk to personal computers - USB, on PCB design for storage module in Eagle CAD and implementation of necessary firmware for MCU and VHDL design for FPGA, that provide the disk functionality. At the end the work summarizes the results and outlines the way of further development.
589

Klikový lis 250 s přímým pohonem / Crank press 250 with direct drive

Čupr, Pavel January 2016 (has links)
This thesis deals with the design of the single point crank press with direct drive. This crank press has an O-shaped stand and an access to the workspace from two sides. The introductory part of this paper describes the principles of mechanical presses drives, drives arrangement presses with direct drive and some conceptual solution stands. The main part of this work is a calculation of basic drive parameters of the press. There are suggested three design variants. The design with the smallest space requirements and good accessibility to the press working space was chosen. The calculation of the main shaft, the input shaft to the planetary gearing and calculation of brake sizes and the planetary gear to the bend and tough was done. Part of this thesis also includes technical drawing of the assembly press, technical drawing of the drive press, technical drawing of the stand a technical drawing of the satelitte gearwheel.
590

Design vysokozdvižného vozíku / Design of Forklift

Pavla, Jozef January 2016 (has links)
Predmetom tejto diplomovej práce je design elektrického štvorkolesového vysokozdvižného vozíka zameraný na inovatívny prístup k návrhu s technickými, estetickými, ergonomickými a ekologickými požiadavkami. Cieľom designu je navrhnúť koncepciu inovatívneho stroja, ktorý bude charakteristický vysokou estetickou kvalitou. Vysokozdvižné vozíky sú spravidla hodnotené z pohľadu ich základných charakteristík, ktorými sú kompaktnosť, manévrovateľnosť, výška zdvihu, stabilita a nosnosť

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