National Repository of Grey Literature 65 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Design of experimental equipment for testing of cooling channels efeciency
Jež, Jan ; Musil, Filip (referee) ; Vlach, Radek (advisor)
This thesis describes design and construction of device which measures efficiency of cooling channels in electric machines. Device measures heat transfer coefficient and friction coefficient. Based on these data, the efficiency of cooling channels with different configuration can be determine.
Automatized working place for measuring of airfow parameters
Veis, Samuel ; Huzlík, Rostislav (referee) ; Vlach, Radek (advisor)
This work deals with the design and realization of the workplace for the measurement of ventilation parameters of fans, electric machines and other elements. The thesis contains an extensive research part regarding the air-conditioning issues. In the work was designed a channel for measurement, electronics, sensorics, control algorithm and user application. The workplace was completed and tested.
Sensor of air velocity measurement in electrical machines
Lavička, Jiří ; Huzlík, Rostislav (referee) ; Vlach, Radek (advisor)
This thesis consists of description of design and construction of device for measuring air velocity created in it´s practical part. In introduction is mentioned basic theoretical information related to given problem, in the next chapters is descripted design and construction of measuring device along with description of calibration proces. At the end is placed chapter about testing the final device.
Experimental stand for properties verify of heat pipe in the electric machine shaft
Kučera, Jaroslav ; Cipín, Radoslav (referee) ; Vlach, Radek (advisor)
My bachelor thesis follows my semestral work, which was devoted to the design of the measuring station simulating the cooling of the rotor of the electric machine using a thermal tube in the shaft, and extends it to a practical test, where the measurement verifies the correctness of my design and the proper functioning of all its parts. During the measurement, the software was modified to provide more accurate temperature control in the heated chamber. The basic assumptions have been confirmed. As has been demonstrated during the experiments, greater attention should be paid to the material for the formation of chambers.
The influence of the vibrations of the grinding spindle of the grinder on the vibrations of large shafts during machining
Hanych, Libor ; Vlach, Radek (referee) ; Nahodil, Petr (advisor)
This master's thesis deals with vibrodiagnostics and its use for monitoring of the vibration transmission during grinding of large shafts at Siemens Electric Machines s.r.o. based in Drásov. Diagnostic system for machine tools testing was designed as well as a measurement methodology, which is used to detect the vibration transfer from the grinding spindle to the workpiece. Influences that affect the quality of the ground surface were determined, based on evaluation of measured data. The last part is dedicated to a proposal of a diagnostic and measuring system.
Design and simulation of interior permanent magnet synchronous machine
Veselý, Petr ; Vlach, Radek (referee) ; Ondrůšek, Čestmír (advisor)
The master’s thesis deals with the design of a synchronous motor with embedded magnets. First of all, the general theory of synchronous motor, which is focused on field-weakening drive, is described. Then a 6-pole and a 8-pole version of the motor with embded magnet, which has 65 kW and 3000 rpm is complexly designed. Motors are compared with each other and with a motor with surface magnets, that was also designed in this work. Finally, all motors are compared with a mafufactured and measured motor.
Programme for calculation of electric machine shaft deflexion with respect magnetic traction
Blahút, Lukáš ; Houfek, Martin (referee) ; Vlach, Radek (advisor)
Primary aim of work is to develop a computer program for calculating the deflection of the rotors of electrical machines. Introductory section describes the simple deflection and possibilities of calculating it. Further, there is defined magnetic pull and his impact on the calculation of shaft deflection. The theoretical part is completed by a detailed description of the method of transfer matrices. The practical part deals with the creation and description of the program created in C++/CLI. Each part is described in terms of user and programmer. In conclusion, prime example is evaluated by created program and given results of calculation are discussed.
Stress analysis in parametric FEM programs
Martinec, Roman ; Vlach, Radek (referee) ; Krejčí, Petr (advisor)
The bachelor thesis focuses on familiarizing with Autodesk Inventor Professional 2012 program and ANSYS Workbench program. It was necessary to get familiarized with working environment of these programs and their mutual cooperation. The interconnection between the two programs is described on a demonstrative case. Next article of the thesis deals with a model conversion into MKP software which was described in detail within both programs. The final part of the thesis compares the results of a stress analysis within Autodesk Inventor Professional 2012 program and also within ANSYS Workbench.
Desing of noncontact speed meter
Benda, Tomáš ; Krejčí, Petr (referee) ; Krejčí, Petr (referee) ; Vlach, Radek (advisor)
My bachelor’s thesis discusses the design and realization of the contactless revolution counter. Design of the revolution counter has been based on the background research which discusses particular sensors and methods of contactless revolution counting. The measuring itself is provided by a PCI card Acquitek and a numerical computing environment and programming language Matlab. This programming language has been used to develop a simple graphic user interface. The revolution counter has been calibrated by photoelectric contactless measuring instrument CB-2234B.
Online Identification of Trailer Parametry using Ultrasond Sensors
Vejlupek, Josef ; Štefek, Alexandr (referee) ; Vlach, Radek (referee) ; Grepl, Robert (advisor)
This thesis deals with utilizing "the common ultrasonic parking sensors" for assisting the driver with backing-up a trailer. Key issues solved in this thesis are "Online trailer parameter estimation:" determining the estimate of angle between the car and the trailer, and determining the estimate of the length of the trailer shaft (distance from trailer coupling to trailer axle). Thesis contains the model of kinematics of the car with coupled trailer and ultrasonic sensor model together with the trailer viewd as an obstacle.

National Repository of Grey Literature : 65 records found   1 - 10nextend  jump to record:
See also: similar author names
1 Vlach, R.
Interested in being notified about new results for this query?
Subscribe to the RSS feed.