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Sensorless control of revolutions and position of DC motor
Kakáč, Petr ; Minář, Jiří (referee) ; Prajzner, Václav (advisor)
This thesis deals with the management and control of DC brush motors used in Honeywell actuators. The introduction describes the types of DC brush motors and possibilities of regulation. We chose the method of compensation of the load characteristics. The basic requirement for this job is a requirement to ensure constant engine speed under various load torque. For this requirement it is necessary to develop a mathematical model of the static engine, calculate, verify that the motor constants and, not least, the implementation of the static model for a given engine. The work focuses on the limits of such an engine control or the limitations that we created conditions in practice.)
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Sensorless velocity control and positions of d.c. low-power brush motor
Svoboda, Jan ; Hanák, Pavel (referee) ; Prajzner, Václav (advisor)
This bachelor's thesis focuses on sensorless control of low load brushed DC motor that is used in the actuators made by the Honeywell company. The first part provides an introduction into motor control and common used methods of speed and position sensing of brushed DC motor. Sensorless method of sensing described in this work is the detection of commutation pulses from the signal of motor current. These pulses are caused by brushes leaping over the commutator bars. Correct evaluation of commutation pulses can provide the information about velocity and position of the motor. This relatively new method of detection of commutation pulses is investigated and arising problems are demonstrated on measured samples of signal. Suitable methods of signal processing are then proposed. Infallibility of these signal processing methods is then proved on the set of signals measured under circumstances of supply voltage and abrasion. Then it is decided which signal processing method that sensorless control system can use is the best.
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Magnetostrictive materials for mechatronics
Rusková, Miroslava ; Kovář, Jiří (referee) ; Hadaš, Zdeněk (advisor)
The aim of this work is to outline and use or application of magnetostrictive materials and possibilities of mathematical modeling their behavior. Magnetostrictive is the physical character of the material, occurs in the most ferromagnetic materials and leads to many effects. Magnetostrictive materials are more often used to in various branches of engineering.
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Honda Turbocharged SI Engine
Malec, Petr ; Bradávka, Marek (referee) ; Svída, David (advisor)
This diploma thesis describes the design of a suitable filling turbocharger for gasoline engine Honda 1.98L. Includes professional research existing systems used for charged gasoline engines. Another part is a calculation to determine the correct parameters of the compressor and turbine. At the end is a simulation of selected turbocharger and engine work together using GT Power software simulation.
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Modular concept of roller conveyor system
Novotný, Lukáš ; Nosterský, František (referee) ; Pokorný, Přemysl (advisor)
This diploma thesis is dealing with the modular project of a roller conveyer track for transport of europallets with the loading limit of 1200 kg and its use in practise. There are also mentioned possible construction solutions and the actual construction project. It is followed by calculating and modular project of direkt conveyer. Further on, I am dealing with the project of a sliding turntable of cable loops and surfaře covering. In the conclusion, I think out the problems of sensors and a possible operating conveyer.
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Automation of track for measurement of water valves characteristics
Lekeš, Pavel ; Havlíková, Marie (referee) ; Šedivá, Soňa (advisor)
My diploma thesis describes upgrade of flowbench serving as test rig for regulation valves characteristic measurement. At the beggining, there is an introduction to the water regulation valves theory followed by current machine condition description. Next chapter defines needed improvements and at the end follows proposition of improvements and necessary component definition and final realization. Final chapter summarizes complete project.
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Automation of track for measurement of water valves characteristics
Lekeš, Pavel ; Havránek, Zdeněk (referee) ; Šedivá, Soňa (advisor)
My diploma thesis describes upgrade of flowbench serving as test rig for regulation valves characteristic measurement. At the beggining, there is an introduction to the water regulation valves theory followed by current machine condition description. Next chapter defines needed improvements and at the end follows proposition of improvements and necessary component definition and final realization. Final chapter summarizes complete project.
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Control of DC Motor
Šálek, Jan ; Stupka,, Radek (referee) ; Havlíková, Marie (advisor)
This diploma thesis is focused on sensorless DC motor control based on its mathematical model. This solution will be used for Honyewell actuators (type ML5410 and N10010/N05010). The aim of this thesis is to find out if there is a possibility to use this type of motor control for future to replace the existing type of motor control using Hall sensor for measuring speed of motor.
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Actuators in aviation
Jetela, Václav ; Horák, Marek (referee) ; Bencalík, Karol (advisor)
The bachelor thesis with name “Actuators in aviation” deals with complete review of hydraulic and electric powered actuators used in aircrafts in a first part. Second part of the thesis is dedicated to review of hydraulic systems. Each chapter contains description of function and schematic drawings. There are mentioned construction designs of actuator test stand for performance testing. Last part of the thesis includes comparison of actuators according to the performance and application in aircrafts.
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