National Repository of Grey Literature 45 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
Redesign of mechatronic system for presentation of damped oscillation
Hanuška, Rostislav ; Březina, Lukáš (referee) ; Hadaš, Zdeněk (advisor)
This thesis deals with mechatronic system design intended for demonstration of oscillation with electromagnetic damping for the purpose of its practical use in classes. A part of this thesis is also introduction to issues related to solids vibration and damping. Then a simulation model will be created in MATLAB/Simulink where required parameters of the damper will be selected, and also there is a design of the whole system. Finally, a comparison of response to initial deflection to real fabricated construction.
Virtual prototype of mechatronic system
Dinga, Milan ; Březina, Lukáš (referee) ; Hadaš, Zdeněk (advisor)
This thesis deals with modeling of delta 3D printer virtual prototype and its co-simulation using software ADAMS and MATLAB/SIMULINK. The first part consists of virtual model creation and its kinematic analysis. Then a model of electric motors is created. The final part consists of co-simulation and control design.
Engineering design of a fullsuspension mountain bike frame
Zvozil, Ondrej ; Lošák, Petr (referee) ; Březina, Lukáš (advisor)
The aim of this bachelor thesis is designing of a full-suspension mountain bike frame. At the beginning of the thesis mountain bikes are divided into categories, the function of a shock absorber is described and issues of bike kinematics and related characteristics are clarified. The thesis also describes properties of the most used materials for bike frames manufacturing. Subsequently, the most common systems of rear wheel linkage are analysed. Next, the requirements for own design are identified in terms of geometry, construction, kinematics and a creation of its 3D model in SolidWorks software. The characteristics of designed frame are analysed by specific software Linkage X3. Then a static analysis in Ansys software is made in order to select bearings for individual pivots. The final part of the thesis is dedicated to visualisation of designed frame.
Waterproof wireless IMU cover design
Kračmar, Filip ; Březina, Lukáš (referee) ; Krejsa, Jiří (advisor)
This bachelor thesis deals with the design and realization of waterproof wireless inertial measurement units cover to measure data of swimming training. The model of casing was created in 3D CAD software. IMU is fixed to lower back by using belt. Easy access to electronics and charging connectors are guaranteed. The shape corresponds to hydrodynamic requirements. Manufacture was made by 3D printing. Casing was tested of waterproof and used for measurement of swimming training.
The design of test fixture for plastic part of car interior
Peňák, Vlastimil ; Březina, Lukáš (referee) ; Krejsa, Jiří (advisor)
This diploma thesis deals with the development, disign and manufacturing inspection device that is able to detect the presence of components in the assembly of the plastic molding. Evaluation of information are indicated by the operator device and sent for further processing. Rechecked product will be marked with a uniquemark.
Optimization of a Parallel Mechanism Design with Respect to a Stewart Platform Control Design
Březina, Lukáš ; Palčák,, František (referee) ; Čech, Vladimír (referee) ; Singule, Vladislav (referee) ; Malenovský, Eduard (advisor)
Předkládaná práce se zabývá návrhem modelu dynamiky paralelního manipulátoru optimálního pro účely návrhu řízení. Zvolený přístup je založen na modelování dynamiky systému v simulačním prostředí Matlab SimMechanics následovaném linearizací modelu. Výsledný stavový lineární model mimo jiné umožňuje snadné posouzení řiditelnosti a pozorovatelnosti modelu. Díky své relativní jednoduchosti je model také výpočetně nenáročný. Přístup je demonstrován na návrhu dvouvrstvého řízení SimMechanics modelu Stewartovy platformy, na kterém bylo následně navržené řízení úspěšně testováno. Podstatná část práce obsahuje přístup k modelování neurčitých parametrů dynamického modelu Stewartovy platformy a stejnosměrného motoru Maxon RE 35 a jeho výsledky. Předložený přístup je založen na modelování parametrické neurčitosti způsobem, kdy je neurčitost definována individuálně pro jednotlivé prvky stavových matic modelu. Samotná neurčitost je potom určena rozdílem mezi jednotlivými parametry příslušných matic nominálního modelu a modelu se stanovenou maximální neurčitostí parametrů. Výsledný neurčitostní model je vzhledem ke své stavové reprezentaci vhodný pro návrh regulátoru založeném na metodách návrhu robustního řízení, například minimalizaci normy H-nekonečno. Popsaná metoda byla použita pro kompenzaci posunu mezi pracovními body, okolo kterých je prováděna linearizace a pro kompenzaci nepřesnosti modelování vybraných parametrů modelů Stewartovy platformy a stejnosměrného motoru. Získané modely (v prostředí SimMechanics a neurčitostní model) byly experimentálně porovnány s chováním jednoho z lineárních pohonů Stewartovy platformy. Rozdíl v datech obdržených ze simulace v prostředí SimMechanics a naměřených na reálném stroji byl téměř kompletně pokryt neurčitostním modelem. Prezentovaná metoda neurčitostního modelování je velice univerzální a aplikovatelná na libovolný stavový model.
Mechatronic system for presentation of damped oscillation
Sirota, Tomáš ; Březina, Lukáš (referee) ; Hadaš, Zdeněk (advisor)
This work is aimed to creating a system for presentation of oscilations. The main part consist of electromagnetic damper, which properties are suitable for use in this system. In the first part are some conditions for design of damper body . In he second part are selected next parameters for electromagnetic damper and of the whole system by MATLAB / Simulink with iterative method. In last part is whole system analyzed and the results indicate next changes in the structure of the system.
Control algorithm for aircraft stabilization
Novák, Pavel ; Březina, Lukáš (referee) ; Krejsa, Jiří (advisor)
Master’s thesis: "Design of the control algorithm for aircraft stabilization" summarizes aircraft aerodynamics knowledge, from which nonlinear mathematical model of the aircraft and propeller propulsion system are created. Design of the control algorithm for angle position stabilization (for longitudinal motion) and the control algorithm for “Flight Path Angle hold“ and “Flight Level Change” modes is also presented here. Designed control algorithms are tested within the simulation of the real atmosphere at the end of the thesis.
Design of automatic drive for church bells
Zajíc, Jiří ; Březina, Lukáš (referee) ; Krejsa, Jiří (advisor)
The Diploma thesis describes the design, manufacture and testing of a universal automation machine for church bells. The research section summarizes the bell, way of use and properties. The drives and their starting and power switching characteristic are analyzed. The chain drive based on the selected engine and the whole assembly is designed and tested by using PLC. Unique controller based on a modular design was designed. Sensors based on magnetic rotary encoder were also created for this unit. The entire circuit was tested on three evangelical church bells in the town Klobouky u Brna.
Simulation Modelling of Manipulator Mechatronic System in ADAMS
Foriška, Aleš ; Březina, Lukáš (referee) ; Hadaš, Zdeněk (advisor)
This thesis deals with the simulation modelling of manipulator mechatronic system in ADAMS. The beginning of thesis is dedicated to the theoretical study of the compute modelling electro-mechanical systems and mechatronics approach modelling manipulator’s systems. Next chapters describe the creation of kinematics model of the manipulator with using ADAMS and proposal supporting frame in ANSYS/Workbench environment. The next step, manipulator and supporting frame simulation model is created for the computing vibration a dynamic analysis. At the end of this thesis is used cosimulation ADAMS and Matlab/Simulink for the control of synchronous drivers of manipulator.

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3 Březina, Luděk
4 Březina, Lukáš
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