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Fatigue properties of titanium alloys
Horník, Vít ; Němec, Karel (referee) ; Věchet, Stanislav (advisor)
This bachelor thesis is concerned with fatigue properties of titanium alloys. The introductory part deals with basic information about titanium, its production, distribution of titanium alloys and their heat-treating. Next part then describes basic process of fatigue loading with the focus on the high-cycle fatigue stress and its application on some titanium alloys. The final part of the thesis includes optical and fractograph pictures.
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Vision system implementation on Bioloid robot
Ropog, József ; Marada, Tomáš (referee) ; Věchet, Stanislav (advisor)
Tato bakalářská práce se zabývá implementací systému vidění na dvounohý humanoid robot ze stavebnice Bioloid. Systém vidění je složen z bezdrátové kamery, která je namontovaná na robotovi a z řídícího počítače. Cílem této práce bylo zkonstruovat a oživit humanoidního robota, vytvořit systém vidění a bezdrátový komunikační systém. V centru je robot, který pomocí bezdrátové komunikace současně odesílá i přijímá údaje. Tento systém nabízí skvělé schopnosti na další rozšíření.
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Software interface implementation for OmniVision camera
Tomáš, Petr ; Marada, Tomáš (referee) ; Věchet, Stanislav (advisor)
The main aim of this bachelor degree thesis is to analyse and test potential of special camera module (OmniVision image sensor) and to evaluate its applicability to the mobile robotics. In the first part of this work a research method was used which compares and evaluates information gained from the camera systems most widely used in the mobile robotics. The main source for this part of the work was Internet. In the next part, research method was applied which helped to obtain data, to explain important concepts as well as to get new information about the camera module itself. The conclusion of this thesis focuses on the use of the recommended programming language in order to solve the problem which was under examination and to draw my own conclusions concerning the applicability of the image sensor to the practise. This bachelor degree thesis offers a suggestion how to implement hardware and software interface for the camera module chosen. A new test application was developed for the purpose of this work to represent basic potential of the image sensor. It also creates basis for the use of the camera module in different applications. This work also provides factual information for new users how to use this or similar camera with OmniVision sensor quickly and effectively. This camera module is suitable for the mobile robotics and it can be recommended for small mobile robots with low energy content. Concretely, this module makes it possible to pre-elaborate the image due to its program possibilities and wide range of ways how to configure the scanned scene right in the image sensor.
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Fatigue properties of EN-AW 7020 aluminium alloy
Kuběna, Martin ; Němec, Karel (referee) ; Věchet, Stanislav (advisor)
This bachelor thesis focuses on the fatigue properties of wrought aluminum alloy EN-AW 7020. The theoretical part deals with the properties and use of aluminum alloys and metal response to cyclic loading. The experimental section is concerned with the structure of alloy EN-AW 7020 and its mechanical properties, especially fatigue characteristics. The goal is to construct S-N curves in the high- and low-cycle region and determine the fatigue endurance limit at 10^8 cycles.
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Low cycle fatigue of EN-AW 7075 aluminium alloy
Bártková, Denisa ; Liškutín, Petr (referee) ; Věchet, Stanislav (advisor)
The main goal of this bachelor thesis is analysis of low-cycle fatigue of wrought alluminium alloy EN-AW 7075. In theoretical part of thesis, current facts about alluminium alloys and fatigue behaviour of material are summarized. Practical part contains evaluation of tension tests and analysis of experiments in low-cycle fatigue region. In additional, the microstructure of an alloy was observed.
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Localization by SICK range-finder
Zháňal, Jan ; Věchet, Stanislav (referee) ; Marada, Tomáš (advisor)
Motion and localization are basic attributes of mobile robots in the environment. In this thesis we focus on localization and also mapping environment by one robot (named as well SLAM) which will use laser range-finder SICK. There will be stated a lot about activities related to robot movements’ i.e. odometry, maps and their making. There is Kalman Filter and his use in this document. In the end there will be made model of the SLAM method made by Matlab program.
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Control software for autonomous mobile robot
Vojta, Jakub ; Marada, Tomáš (referee) ; Věchet, Stanislav (advisor)
Bachelor thesis focuses on software development for mobile autonomous robot with a microcontroller control unit. It provides an overview to sensors for mobile ground robots on a level necessary for control software programmer. It further analyzes microcontrollers and their architecture and programming. At the end of the thesis is theoretical description of deployed navigational software and communication protocol between control unit and computer.
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