Dissertations / Theses on the topic 'Řízení osy'

This thesis deals with construction, connection and control axis with linear motor. The beginning of thesis is focused on principle of functioning and characteristics of linear motors. The following part describes used components of axis, their mechanical configuration and electrical wiring. Further thesis deals with creating PLC program and user interface for control axis in TwinCAT system. In last part is dealing correct software settings of axis.

This work deals with virtual designing of ball screw drives of CNC machine by modern software tools to approximate evaluation of dynamic behavior of real system. Realized multi body system of thrust axes actuated by synchronous motor is analyzed and after that are designed elements of control used for accuracy positioning of table.

his Disertation thesis involves the creating of the simulation model of the C axis drive over mentioned machine and them verification on the prototype of this machine. C axis is controlled with position feedback. Simulation model was created before the realisation of the machine prototype for the preliminary identification of the dynamic behaviours in the working cycles and them opportunity of the realisation this conception. C axis is constructed with worm gear and is controlled with help of Master-Slave drive. This torque drive eliminates the production backlash in the worm gear. The multifunction turning center, where is used this C axis, is determinate for heavy duty roughing cutting of the forged peaces, where is problem with dynamic stability of the cutting process. Simulation model includes the problems with multi-body mass system, friction on the worm gear, self locking, damping on the worm gear and the optimization of the parametrs for many regulators. Simulation model was verified on the prototype of the machine. Achieved results bring the new knowledge, which are used for simulation complicated machine nodes and this knowledge is used for research and developing of the similar mechatronics system.

This thesis deals with analysis of electric drive parts from hybrid electric vehicle, namely interior permanent magnet synchronous motor and inverter with control. First part describes a basic theory. Further, motor and inverter computer models are shown, specified simulations are performed on this models. Results are compared with values measured on real machines from accessible literary sources.

The aim of this theses describes the design of the control program for the synchronous axes model and reconstruction of this model. The first main part is description of synchronous axes model, description of engines and other components of model. Then model modifications are described. Another part is discussing the TwinCAT programming environment and describe all important elements that must be performed for proper functionality of the model. There is also a description of function blocks that are used to program motion sequences. The last part is described of demonstration program and program which would be used for teaching.

This thesis describes the design of construction of the converter USB joystick on the Ethernet interface. In the first part are theoretically analyzed both protocols used for the converter. An analysis of current microprocessor trade and their possible using for application in this project. Next part including the specification of used microprocessor and all options of programming and debugging of the microprocessor. Another part deals with the detailed design of the hardware interface. The last part describes the software equipment of microprocessor and the final appreaciation of work.

Companies and other organizations have to change and adapt their strategies and redefine their goals constantly. Actions and steps that are needed in order to achieve the defined goals and to realize the change are often executed in a form of a project. There is no doubt that projects need to be managed in an appropriate way. In organizations where there are more than one project executed in parallel and other projects are being planned or proposed at the same time it is necessary to manage not only the individual projects but the entire portfolio of projects and programmes. Portfolio management is needed to ensure that the selected projects are best aligned with the defined goals and the strategy but this requires an analysis of a large amount of data about current and upcoming projects or about available resources and their utilization. It is not always easy to get all required data and to perform the analysis. This is the reason why deployment of some project and portfolio management software tool should be considered. This thesis deals with a search for suitable open source project and portfolio management tools and with assessment of costs and benefits of deployment of selected open source tool in a hypothetical IT company. The goal of this thesis is to define the term project and portfolio management tool and to find at least five open source tools of this type that are suitable for deployment in an organization. At least one of these tools should be suitable for deployment in the IT company. Another goal is comparison of features and functionality provided by the open source tools with functionality provided by the robust proprietary project and portfolio management solution deployed on premise and with one solution offered in the Software-as-a-Service model. Creation of a business case dealing with implementation of the selected open source tool is the last goal of this thesis. Identification and description of available open source tools and comparison of these tools with representatives of the robust project and portfolio management tools developed and distributed in models different from open source are considered the main benefits of this thesis. The terms "open source software" and "project and portfolio management tool" are defined in the first part of this work. The definition of terms is followed by the definition of the overall approach to the assessment of the open source tools which involves definition of assessment criteria and obligatory requirements. Next part of the work is dedicated to the selection of the open source tools that are suitable for deployment in an organization and which represent candidates for project and portfolio management tools. Assessment of these tools using the defined criteria is performed as the next step which is followed by the comparison with representatives of proprietary project and portfolio management tools. Last part of the work is dedicated to the business case which deals with deployment of the selected open source tool. This work concludes with discussion whether the defined goals were met or not, and with the summary of the results.

The master’s thesis describes development of control system for automatic mouth-organ. The process of development is divided into three parts: a concept of control system, design of hardware parts and development of software parts. Controlled device, system requirements and general design of the hardware and software components are described in the concept of control system. The detailed hardware design includes next processes: electronic component selection, printed circuit board design, assembly and debugging. The result of this chapter is electronic system, which function correctly. The aim of the last chapter is to specify and explain development of software parts of control system. Installation of required software and important aspects of control software and user interface development are described in this chapter. The goal of the thesis is to create a control system, which will function correctly and reliably.

Práca sa zaoberá problematikou kontroly a blokovania externých zariadení v operačnom systéme Apple macOS za účelom ochrany pred únikom citlivých dát. Implementované riešenie ukazuje zvolené prístupy pre blokovanie externých a cloudových diskov. Pre blokovanie USB diskov bol použitý DiskAbitration framework, čo je najvodnejšie riešenie tohto typu úlohy. Avšak cloudové disky sú v skutočnosti synchronizované zložky a úlohu nehrajú ovládače ani strom pripojených zariadení. Ku kontrole operácií v cloudových diskoch bol použitý Endpoint Security framework. Aktuálne podporovaní cloudový poskytovatelia sú iCloud a Dropbox a prístup k nim môže byť obmedzený úplne alebo iba na čítanie. Schopnosť synchronizácie vzdialenýh zmien bola zachovaná avšak v prípade Dropboxu si to žiada nepoužívať ich aplikáciu na správu súborov.

This diploma thesis deals with the field of safety and health at work. Based on the Czech Republic, the EU, and Finland´s current state analysis, a questionnaire survey is conducted, followed by methods such as Brainstorming, What if and FMEA to eliminate and manage risks. The thesis aims to propose measures minimizing the risks associated with violation or non-compliance with safety principles in a selected risky profession of stonecutting. At the same time, the thesis provides a financial evaluation of the proposed measures.

The aim of this thesis is the design of the rotary tilting table controlled the fourth and fifth axis for CNC centrum.První part includes the search for pivotally tilting tables. The second part includes the choice of technical paremetrů pivotally tilting table for selected CNC center, design of possible options , selection of appropriate options, design of the selected option.

Tato diplomová práce byla psána při studentské zahraniční stáži, pod záštitou Evropské Unie – program „ERASMUS Student Mobility for Placement“. Stáž byla absolvována mezi prosincem 2010 a květnem 2011 ve společnosti a.d.Tramontana, mající sídlo v Palau de Santa Eulália, Španělsko. Pro kompletní návrh podvozku a odpružení jakéhokoli vozidla je nezbytná znalost mnoha technických disciplín. Tato diplomová práce se zabývá dvěma z nich – odpružení a řízení. Nejprve je rozebrána teorie, na kterou se může navázat v praktické části práce. Velká pozornost byla věnována srozumitelnosti textu a názornosti obrázků, bez zbytečných detailů, avšak bez vynechání důležitého. Tuto práci je tedy možné užít jako prvního kroku před návrhem podvozku. V další části je popsáno, jak byla probraná teorie využita při návrhu řízení u skutečného vozu, přičemž největší pozornost je věnována Ackermannově teorii řízení a geometrii zabraňující samořízení při propružení. V závěrečných částech je pozornost věnována ukázce některých z každodenních činností v malosériové výrobě automobilů – jde o zjištění maximálně možného pohybu kola při propružení a proces výroby příčných trojúhelníkových ramen včetně návrhu jejich připevnění k šasi.

In this thesis I focus on a safety audit in a plant for the preparation of concrete carried out according to Self-Audit Handbook for SMEs. In the first part some examples of accidents in plants for the preparation of concrete in Czech Republic as well as in abroad are stated. In the second part I describe the subject of work injury in Czech Republic and the obligations of employees and employers in accordance with the labour code. The third part deals with the safety management, occupational health and safety management system and briefly covers various types of audits. The next part analyses briefly concrete composition and its production process, the function of plant for the preparation of concrete and safety requirements demanded from the plant for the preparation of concrete in accordance with an appropriate standard. The last part describes the audit itself processed according to Self-Audit Handbook for SMEs at two plants. The aim of this thesis is to process and to evaluate results of two audits that took place at plans for preparation of the concrete and to propose corrective actions and process improvements.

The relationship betweeen the International Criminal Court and the United Nations Security Council holds important value because, as a people, we are striving for a change towards a universal justice system, rather than a nationalistic conflictual one. To assess the progress, a closer look is necessary at the issue at hand. If the ICC does not have a nation to support it, in order to serve as a deterrent, it does need a powerful organization behind it: the UNSC, or the interplay between the SC, ICC and the "executive body" of the international community. However, their relationship is convoluted in controversy, since it is believed to serve as a tool for the major powers when they see fit, thus deligitimizing its credibility as an overarching judicial organization meant to resolve inter-state conflicts, and punish those who commit the most heinous crimes, regardless of their nationality. The findings of this research will show that more factors weigh in, and, even though the UNSC does hold a tight grip and has the power to influence the proceedings before the ICC, there is a clear positive trajectory for the International Criminal Justice System; the author of the research believes it will only get better. Keywords International Criminal Court; UNSC; Rome Statute; International Criminal Law Range...

The leader of the climate change regime is the United Nations Framework Convention on Climate Change (UNFCCC) which hosts the international climate change negotiations at the annual Conference of Parties (COP). In addition to official parties which represent nations in the UNFCCC, businesses and environmental groups are also playing a role in the negotiations as observers, which are grouped together in constituencies. This research will look at the two largest and original constituencies, the Business NGOs (BINGOs) and the Environmental NGOs (ENGOs) which represent business and environmental groups respectively. Both constituencies have a focal point for their members with the UNFCCC Secretariat, which for BINGOs is the International Chamber of Commerce (ICC) and the Climate Action Network (CAN) for ENGOs. Specifically, this paper compares the ICC and CAN and finds similarities and differences between their functioning within the UNFCCC in regards to their ability to build coherent policies between their members and how transparent they are in their activities. It was predicted that businesses groups have a harder time working together and are less transparent than the environmental groups which the research indeed confirmed. A series of interviews with various actors in the climate negotiations...