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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.
131

Návrh technologie součásti "kryt vstřikovače" v podmínkách malé strojírenské firmy / Component technology design "injector cover" in condition of a small firm

Hampl, Petr January 2012 (has links)
Processing completely producting technological documentation for production part “INJECTOR COVER” for firm BM SERVICE (formerly ČKD Hradec Králové), including time schedule production of parts (parts which past welding and machining create demanded component part) and calculation production costs. Solving production process is concepted in two variation (actual and forecast study) for machines which are sorted from existing machinery and from now proposed machines. Estimation is designed for firm conditions introducing to the production with view for qualifications of workers, convention in firm and equipment.
132

Design komunálního čisticího vozidla / Design of Sweeper

Povolný, Karel January 2013 (has links)
Topic of diploma thesis is design of a municipal sweeper. It is labor vehicle, which main task is collection of street and municipal garbage. The use and implementation for other functions is also possible Topic is carefully analysed. Final variant can be divided into design, ergonomic, construction and graphic part. It is innovatory product, that respects trends of his competitor‘ s products.
133

Zvyšování elektrické účinnosti kogeneračních jednotek / Improvement of power efficiency of co-generation units

Pokorný, Vojtěch January 2013 (has links)
In this masters thesis are discusses the possibilities of increasing the electrical efficiency of cogeneration units with an internal combustion engine with the power output 800 kWe. Technical and economical aspect the connection with steam turbine, steam engine and ORC turbine is compared. It include the design of heat exchanger for ORC cycle.
134

Návrh konstrukce omílácího stroje / Suggestion of tumbling machine's construction

Coufal, Martin January 2014 (has links)
The thesis is in the first part focuses on the description of the technology and tumbling overview of the applications in which it is possible to use this technology. This topic is the description tumbling wet using ceramic beads. In the third part of this work is performed a brief overview of the types of tumbling machines. The following is a list of their own design variant tumbling machine with a choice of optimal design variants. Then follows the design of the tumbling machines, followed by an overview of the calculations. In the last part of this work are the technical parameters of the designed tools, including a description of its operation and maintenance.
135

Simulační posouzení možností tlumení osy X těžkého obráběcího stroje / Simulation Assessment of X Axis Damping Possibilities of Heavy Machine Tool

Štetina, Jakub January 2014 (has links)
This master's thesis deals with the simulation assessment of axis X damping possibilities of Heavy Machine Tools. CAD model has been provided by company TOSHULIN a.s. In the thesis, there is described modelling of axis X as multi body system consisting of rigid and flexible bodies. The main goal is to create simplified model and get the information for strategic decision of manufacturer about damping possibilities of axis X. For the solution has been used several software products: SolidWorks 2013 - for simplifying the CAD models, Ansys 14.5. for modelling od flexible bodies, MSC.Adams for modelling multi body systems and Matlab 2012 for data processing and optimization.
136

Návrh vřeteníku odhrotovacího stroje / Design of headstock of the deburring machine

Tatíček, Jiří January 2015 (has links)
The aim of this thesis is design of deburring machine, focusing on the headstock, capable of aligning the front side and chamfering at the round bars. At the beginning is a short research design nodes, used in the construction of machine tools. As part of the work was done and the measurement of cutting forces to determine the load while standing. Work also includes a series of calculations to justify the use of selected components. The outcome of the work is also a 3D model.
137

Středové kloubové uložení lesního vyvážecího stroje LVS511 / Central joint of forest forwarder LVS 511

Horký, David January 2015 (has links)
This diploma thesis deals with stress analysis central joint of forest forwarder LVS 511. Stress analysis has been performed by finite element method (FEM) using the program NX I-deas. The diploma thesis was conducted in cooperation with the firm Strojírna novotný s.r.o.
138

Motor-generátor pro vírovou turbínu / Motor-Generator For Swirl Turbine

Huzlík, Rostislav January 2015 (has links)
The aim of this doctoral thesis is to design a motor-generator for swirl turbine. Swirl turbine is a relatively new type of turbine developed at the Department of Fluid Engineering Viktor Kaplan Energy Institute FME BUT. Swirl turbine is designed for use on small head, where the classical types of turbines either poor efficacy or are economically disadvantaged. As suitable construction for the motor-generator was selected synchronous machine with permanent magnets and with axial magnetic flow with coreless stator. As part of the work is carried out calculating the properties of turbines for defined operating point simulation model of the turbine. After already made draft motor-generator to optimally meet the characteristics of the turbine. The complete design of the motor-generator is validated by calculating the finite element method models. Designed machine must be able to work as a generator and as a motor, if it was necessary to use a turbine as a pump.
139

Využití technologie virtuální reality v analýze rizik a bezpečnosti výrobních strojů / Utilization of Virtual Reality Technology in Risk Analysis and Safety of Production Machines

Novotný, Tomáš Unknown Date (has links)
The doctoral thesis introduces a study of possibilities for utilization of virtual reality technology in risk analysis and safety of production machines. The main goal of the thesis is to analyse and examine possible means of integrating visualization and interaction techniques of virtual reality into the risk identification process in the early stage of the production machine life cycle. The proposed work provides a methodological approach to the theoretical implementation of these techniques in the definition of dangerous areas of a machine, identification of sources of possible risks and verification of applied measures built-in in the machine structure. A system approach is used for forming and optimizing the introduced methodological procedures. The solution includes the design of the methodology for effective transfer of 3D design data into immersion virtual reality domain. This enables overcoming existing barriers in exploitation of virtual reality technologies in industrial applications. The next section introduces a procedure of implementation of real tools and equipment in immersion virtual reality domain, including an option for detection of collisions between the real tools and virtual objects. Experimental tests confirm its capability of practical utilization. The impact of the final practical contribution is shown by a decrease in the number of accidents during assembly work, due to its appropriate planning and thanks to training of the personnel on a virtual prototype, carried out already before the manufacturing of the actual machine. The result of the presented doctoral thesis contributes to further qualitative improvement of techniques and methods for preventive increase of safety and reliability of developed machines, particularly of machining centres, which will help increase their competitiveness. The properties of the designed procedures are documented and verified on real industrial cases.
140

Virtuální stroj pro Objektově orientované Petriho sítě / Object Oriented Petri Nets Virtual Machine

Sitarčík, Ľuboš January 2015 (has links)
This diploma thesis formally defines the Object Oriented Petri Nets and presents term a virtual machine. Then it introduces the concept of Object Oriented Petri Nets Virtual Machine. Finally, project describes a procedure for implementation of the OOPN Virtual Machine.

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