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Design of the elevator drive for storage system LogiMat
Dosedla, Milan ; Hava, Jiří (referee) ; Škopán, Miroslav (advisor)
This diploma thesis deals with the design of the new elevator drive for storage system Logimat. Diploma is focused to design a new drive for a load up to 1200 kg and to adapt the elevator frame to the new drive design. In the first part is done research for suitable drive systems. There are followed by design and stress analysis. The second part deals with appropriate roller chain parameters calculation and the power output of electric motors.
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Sport Centre Brno
Shmykov, Egor ; Vostrejž, Dušan (referee) ; Odvárka, Antonín (advisor)
This paper deals with the sport complex of Brno. This sport complex consist of buildings which are called to increase of sport popularity in the city. One of the largest objekt of them is footbal stadium. Footbal stadium is devided into three main parts of building: spectators area, administrative todether with commentators area, and footbal players area. There is secured parking on -1 level for employees, players and VIP spectators. Of course there are necessary medical, secure and sanitary placements. With the architectural part of view footbal stadium add a reqired part of masterplan composition. As Stadium exist on the cross roads of Pionyrska and Sportovni it supplement around area of its tactic form an closely interact with park "Luzanky" thanks to it's glass fasade. The building is designed to meet every safety regulations regarding evacuation routes and required medical care. It also carries a number of place improvements not only technical and functional, but a lot of with architectural part of view.
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Calculation of heat and force field UniGear ZS1
Mokrý, Lukáš ; ABB, Drahomír Tůma, (referee) ; Dohnal, Petr (advisor)
The aim of my work is to describe high-voltage switchgear type UniGear 500R, which is part of UniGear switchgears family. I will focus on heating issue of one 500R unit and its parts during operation. Maximum values of this heating is limited by standards and can´t be exceed to ensure safe and reliable operation. That is why the heating tests are necessary part of designing and developing switchgears. Calculation will be made by two different ways. First is classic one-pole heating net method and second is numerical simulation in Solidworks flow simulation program. Except the theoretical description there will be presented also used 3D model and explanation of both method, used to calculation and simulation. Last point of this work is measuring of this type of switchgear and getting real data. The main point there is to compare measured values with values calculated and decide if is possible to simulate tests with appropriate accuracy. Then would be also possible to substitute the real test in laboratory, which costs many thousand crowns and takes lots hours of time. This work is collaborated with EJF division of ABB Company, where I am employed. Heating issues in this company is always on process, because of developing and improving of their products. So this work could be helpful in this field. ABB provides all materials needed, especially technical catalogues, 3D model and final values from laboratory measuring. Support from college faculty is mainly in study consultations and proposing of calculations making. In the end of work will be make final comparison and evaluation of achieved results.
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Noise Source Identification Using Beamforming
Kurc, David ; Míča, Ivan (referee) ; Schimmel, Jiří (advisor)
This master's thesis is focused on the noise source identification using microphone arrays and beamforming as the signal processing method. It describes parts of such a system and provides a comparison with other systems that serve a similar purpose (eg. NAH). Various types of microphone arrays are mentioned with their influence on the resulting ability to identify the noise source. We are further focusing on Delay-And-Sum technology, on which we are explaining the basic principles and constraints of beamforming. The practical part describes the implementation of the DAS method in MATLAB and C language, the specific structures of built microphone arrays and assembly of complete systems capable of identifying sources of noise. These systems were tested by performing a practical experiment. Achievements in the form of distribution maps of acoustic energy in the focused space are interpreted in the last chapter.
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Single-Phase Induction Motor Calculation
Ševčík, Pavel ; Vítek, Ondřej (referee) ; Hájek, Vítězslav (advisor)
This master's thesis considers by single-phase asynchronous motor. The first part discuss about construction, principle of operation and basic parameters of this motor type. It also discussed the emergence of torque and torque characteristics of the different types of engines. The second part explains the basic ways of obtaining grip moment including outline the principles of functions particulars constructions types, which is produce in practice. In the third part is minutely analyse single-phase asynchronous motor with auxiliary phase and permanently conect capacitor, including method of assign size of a capacitor. Fourth part section provides the principles of the procedure for calculating basic parameters of the single asynchronous motor with auxiliary phase. At the last part is accomplished a calculation of single-phase asynchronous motor with permanently conect capacitor at auxiliary phase including comparation with already manufacturing motor.
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Searching algorithms
Ďuriš, Martin ; Šeda, Miloš (referee) ; Dvořák, Jiří (advisor)
The thesis describes and analyzes selected searching algorithms for single dimensional array. Algorithms are analyzed mathematically and graphically. Mathematical analysis is based on analysis of average amount of performed comparisons required for the final result and literature review. Graphical analysis is based on multiple examinations of selected searching methods with randomly generated single dimensional arrays. The graphs show dependency of elapsed searching time of successful and unsuccessful searching trial on the size of single dimensional array. The results establish the binary searching algorithm as the fastest one of the selected searching algorithms.
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Sorting algorithms
Schwarz, Jakub ; Smrž, Jaroslav (referee) ; Dvořák, Jiří (advisor)
Enormous volume of data, which has been processed during production operations, requires easy orientation and quick searching. Exact search in real time is essential for success. Correct and quick data-sorting is one of the most important activity during dataprocessing. The goal of this bachelor’s thesis is background research of sorting algorithms. To achieve the goal, basic concepts of sorting theory will be described (determined) and there will be division of sorting algorithms by different criterions. For each algorithm of internal array sorting, sorting principles will be described and analysis of efficiency will be provided. The results will be verified by experimental program.
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