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Modelling and Implementation of Control System for 3D Printer
Ševčík, Martin ; Pohl, Lukáš (referee) ; Jirgl, Miroslav (advisor)
The content of the thesis is the modeling and implementation of the CNC control algorithm. This master thesis contains the description of issues of computer-controlled machines, the research of interpolation algorithms for control CNC machines and the modeling of the selected control algorithm with motor S-curve shaped speed profiles and simulation of chosen algorithms with S-shaped speed profiles in Matlab & Simulink.
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Modelling and Implementation of Control System for 3D Printer
Ševčík, Martin ; Pohl, Lukáš (referee) ; Jirgl, Miroslav (advisor)
The content of the thesis is the modeling and implementation of the CNC control algorithm. This master thesis contains the description of issues of computer-controlled machines, the research of interpolation algorithms for control CNC machines and the modeling of the selected control algorithm with motor S-curve shaped speed profiles and simulation of chosen algorithms with S-shaped speed profiles in Matlab & Simulink.
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Problematics of aerodynamic damping calculation from measured data of 5-blade cascade
Šnábl, Pavel ; Pešek, Luděk ; Prasad, Chandra Shekhar ; Chindada, Sony
Aerodynamic damping as a function of inter-blade phase angle (IBPA), so called S-curve, is crucial for assessment of aeroelastic stability of blade cascades, e.g. turbines, compressors, etc.\nFor constructing the S-curve, the motion-induced controlled flutter is introduced to the bladesof the cascade. As decribed in [1], two testing methods exist: aerodynamic influence coefficient\n(AIC) approach and travelling wave mode (TWM) approach. In TWM approach, all blades in a row oscillate with the same frequency and amplitude with various IBPAs. The response is\nmeasured only on the reference blade. With this approach, several measurements with different IPBAs are needed to construct the S-curve. On the other hand, AIC uses single oscillating\nblade and principle of linear superimposition of aerodynamic influence responses measured on all blades in a cascade. The result of one single measurement can be used for estimation of\naerodynamic damping for any IBPA. In the past year a new 5-blade cascade with rotating symmetrical NACA 0010 profiles was designed and built. The blades of the cascade were placed further apart and thus we are now able to reach stall flutter. Also, the suspension of the blades and sensors were significantly improved. Now, our goal is to evaluate S-curves using AIC approach for different flow conditions and oscillation frequencies.
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Řízení krokového motoru v částečně uzavřené smyčce
VEBER, Jan
The goal of this bachelor thesis is to clarify drivers basic of electric driver to students interrested in motion and some extended methods of control stepper motors with microcontroller. This thesis should explain principles of stepper motor, kinds of motion profiles, their properties, advantages, disadvantages and also methods their computations. Second goal is to explain the fieldbus protocol MODBUS and its implementation into PIC32 microcontroller. Practical part of this thesis is design and construction of a demonstration kit which allows to students see and better understand basic of stepper motor control and its integration to master system via MODBUS. Benefit of this thesis is that it introduce nowadays methods of control stepper motors to student to get view of industry implementation as well as control systems via fieldbuses/networks. The demonstration kit helps to achieve this goal. It was designed to be crash resistant, easy control and safe for users. The demonstration kit could be controlled by a third party device because of its modularity. Moreover the kit should be controlled by a PC software via MODBUS.
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Modelling and Implementation of Control System for 3D Printer
Ševčík, Martin ; Pohl, Lukáš (referee) ; Jirgl, Miroslav (advisor)
The content of the thesis is the modeling and implementation of the CNC control algorithm. This master thesis contains the description of issues of computer-controlled machines, the research of interpolation algorithms for control CNC machines and the modeling of the selected control algorithm with motor S-curve shaped speed profiles and simulation of chosen algorithms with S-shaped speed profiles in Matlab & Simulink.
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Modelling and Implementation of Control System for 3D Printer
Ševčík, Martin ; Pohl, Lukáš (referee) ; Jirgl, Miroslav (advisor)
The content of the thesis is the modeling and implementation of the CNC control algorithm. This master thesis contains the description of issues of computer-controlled machines, the research of interpolation algorithms for control CNC machines and the modeling of the selected control algorithm with motor S-curve shaped speed profiles and simulation of chosen algorithms with S-shaped speed profiles in Matlab & Simulink.
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