|
|
DC Motors Analysis and Innovation
Šimko, František ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
The thesis aims to explain the design a prototype of an innovated small engine. It is divided into three main parts. The first part is focused on the analysis of low power DC small engines available on the market. The second part consists of measuring, construction and loss analysis of a DC small engine with permanent magnets. The last part deals with the possible innovations of a small engine with permanent magnets and subsequent implementation of some of them. The innovations are supported by calculations and simulations.
|
|
|
Magnetic field analysis with finite element method and magnetic sensor
Volf, Tomáš ; Kurfűrst, Jiří (referee) ; Skalka, Miroslav (advisor)
The magnetic field analysis by MKP and magnetic probe project deals with magnetic field analysis of asynchronous machine cross section. This analysis is written in detail along with the necessary theory of asynchronous machine and the ANSYS program. The magnetic field of selected machine is measured by magnetic probe and results are compared with calculation. The next part of thesis is draft of device for the magnetic field analysis.
|
|
|
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.
|
|
|
Microdive with linear piezomotor
Grmela, Petr ; Vrba, Jaromír (referee) ; Koláčný, Josef (advisor)
The goal of this bachelor thesis is desctription of function and structure of piezoeletric motor „piezowawes“, creation his laboratory formation and folowing measuring his static characteristic (feed spead / drawing force). Except experimental conclusions is this thesis aim on theoretical analysis and physical explanation of piezoeletric phenomenon. This analys contains materials and important definition which are delaing with this phenomenon. This thesis also contains basic distribution of each kind of piezomotor and discuss aboat their practical use.
|
|
|
Brakes and retarders of commercial vehicles
Kalnický, Jakub ; Zháňal, Lubor (referee) ; Fojtášek, Jan (advisor)
This bachelor's thesis is specialized search dealing with brakes of commercial vehicles. The work is divided into six main parts. The first part deals with genesis of brakes. The second part informs about fundamental terminology and definition of braking. The third part deals with distribution of braking systems by their purpose. Contents of fourth and fifth parts are friction brakes and retarders. The last part is dedicated to development trends of brakes.
|
|
|
Electron beam welding technology
Skalka, Jan ; Vaněk, Mojmír (referee) ; Richter, Tomáš (advisor)
The bachelor thesis is devoted to analysis of electron beam welding technology. It is unconventional method of welding characterized by high quality weld and narrow heat-affected zone of welded parts. This technology, due to its development and qualities, has found its application in many industries, primarily in aviation and astronautics. The vacuum is limiting feature of this method and it is necessary for electron beam welding. However, even in this area, the development of new technologies have not stopped and generates concrete solutions to those problems. The thesis is also focused on elektron beam welding of rotary parts in the piece and serial production.
|
|
|
Balancing of hydraulic machines
Buben, Marek ; Soukup, Lubomír (referee) ; Nováková, Naděžda (advisor)
This bachelor’s thesis is technical research dealing with issues of static and dynamic balancing of rotors. The first part of this work is devoted to explaining basic concepts associated with problems of balancing. As for the next part, this work defines types of imbalances and basic methods of balancing. The last part is devoted to describing machines for static and dynamic balancing and their operation in practice.
|
|
|
Machining of components on CNC machines
Osička, Petr ; Mouralová, Kateřina (referee) ; Kalivoda, Milan (advisor)
The bachelor thesis deals with the manufactory of the rotor for the electric motor on the CNC lathe. The first part describes the function and design of manufactured constituent part. The next chapter designes and describes production process of machining the shaft and next steps of manufactory are described. They basic production capacity calculations are made. In the next part the NC program is designed, which is used to manufacture the shaft as a model product.
|
|
|
Welding of turbine rotor materials
Palán, Marek ; Vaněk, Mojmír (referee) ; Daněk, Ladislav (advisor)
This thesis deal with the basic problems of welding rotor materials. It describe the essence of welding and ways of detecting defects caused by welding. Furthermore, it is covered in more detail the formation of heterogeneous welds and the impact of individual elements in the weld on the properties of the resulting weld. It lists detailed breakdown of creep-resistant steels and principles of their heat resistance. The thesis gives an overview of welding used in welding rotor materials and various methods are described. The work also includes commissioning of thermal processes in welding. In the experimental part is evaluated macrostructure, hardness and the method used in the implementation of the cladding material 26NiCrMoV14-5.
|
|
|
Helicopter rotors
Brožek, Petr ; Pejchar, Jan (referee) ; Petrásek, Miloslav (advisor)
The Bachelor thesis Helicopter rotors has several purposes. Delineate historical development of the helicopters as a vehicle and combat vehicle. Describe main parts and their roles in helicopter. Put into aerodynamics of the rotors. Create overview of the most commonly used types of the helicopter main rotors and anti-torque configurations for contemporary helicopters, followed by a more detailed analysis.
|
guest ::
