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Electrical device motion mechanism analysis
Hollý, Martin ; Ctibor, Jiří (referee) ; Šimek, David (advisor)
This thesis deals with the analysis of the movement mechanism of electrical devices and the comparison of sensors analyzing object movement. In the first part, position, speed and acceleration sensors are described, divided according to the physical principle of their operation. In the second part, the applicability of individual types of sensors for the analysis of moving parts of electrical devices is assessed, based on a comparison of their advantages and disadvantages. In the third part, the achieved results of the analysis using two selected distance sensors on the switching mechanism of the contactor are compared and evaluated. The last part describes the effect of temperature and position on the dynamics of the switching mechanism.
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Analysis of crank and cam shaft position sensor variability
Riečica, Samuel ; Repka, Martin (referee) ; Šebela, Kamil (advisor)
This bachelor thesis deals with the working characteristics of crankshaft and camshaft position sensors used in the power unit to ensure correct injection and ignition of the fuel mixture. Their variability was determined by experimental comparison of sensor characteristics. Search of the types and designs of sensors used was carried out in the first phase. Measuring device, which represented a simplified shaft model for sensing characteristics, was designed and constructed in the next step. The experiment was conducted on a statistical sample of 100 pieces of sensors using the Hall effect. The characteristics of the sensors were recorded and evaluated using an oscilloscope with appropriate digital software. Statistical processing of the measured data was performed at the end of the thesis. The results show that the variability of the crankshaft and camshaft position sensors can have an impact on engine performance characteristics and exhaust emissions produced.
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Position sensor for dynamic verticalization
Hláčiková, Michaela ; Sekora, Jiří (referee) ; Janoušek, Oto (advisor)
Dynamic verticalizer is a device designed for the rehabilitation of patients with lower limbs disabilities. Rehabilitation takes place by playing computer games that are controlled by body movements. The aim of the bachelor thesis is to construct a motion sensor prototype, to measure patient data during therapy and to appraise the extent of patient movement on the basis of measured data.
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Hydraulic linear drive for paralell kinematics structures of robots
Pavlica, Jiří ; Pavlík, Jan (referee) ; Knoflíček, Radek (advisor)
This thesis describes the design of linear units with hydraulic drive for the robot with parallel kinematic structure. The theoretical part deals with the historical development of parallel kinematic structures, its design proposals for individual structural elements and a comparison of parallel and serial kinematics. The main aim of the work is developing design of hydraulic drive, hydraulic circuit, creating a 3D model using Solid Edge software, and the development of design documentation for the designated parts.
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Design of spindle for lathe
Sovadina, František ; Marek, Tomáš (referee) ; Pavlík, Jan (advisor)
The thesis deals with the design and construction of headstocks of a turning centre. The aim is to design a spindle with an output of 20 kW and a maximum speed of 5000 1/min. The research part of the thesis is focused on the description of the basic parameters of the headstock and turning centres needed for the construction of the headstock and contains an analysis of the available spindles on the market. The next part of the thesis deals with the selection and calculation of cutting conditions and the necessary parameters. Analytical calculations are then verified using FEM analysis. At the end of the thesis, a 3D model was developed and headstock drawing documentation.
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Enhancement of gait and control of six-legged walking robot Cerna Vdova
Krejsa, Jan ; Kopečný, Lukáš (referee) ; Kříž, Vlastimil (advisor)
This bachelor thesis deals with control, operating and remote programming of a six-legged walking robot. It is devided into six chapters. The introduction chapter is about remote programming. The second chapter describes possible walking ways of six-legged chassis. Furthermore this thesis deals with the overcoming of obstacles, thus to walking on uneven ground. The following chapter discusses the possibilities of wireless communication. The last two chapterss describes the hardware and software of the robot.
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Hydraulic linear drive for paralell kinematics structures of robots
Vintr, Pavel ; Holub, Michal (referee) ; Knoflíček, Radek (advisor)
This Master thesis deals with the design of linear unit with hydraulic actuator for the robot with parallel kinematic structure. One of the objectives is to get an overview of the differences related to characteristics of design and construction between serial and parallel kinematic structure (PKS) of the industrial robots, as a new type of technical objects in robotics. In addition the aim is to create an original structural design of linear unit, as the basic constructional assembly and operational node of robot with PKS, according to the specified input values, such as power, pressure, speed and stroke, important for the design of linear hydraulic actuator.
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Design of cutter head with Harmonic-Drive application
Tkadlec, Dušan ; Dosedla, Michal (referee) ; Holub, Michal (advisor)
This master´s work deal with design two axis cutter head with possible variants drive of axis. The part of this work is also technical– economics valuation of single variants, calculation torque and force from motor head and design taking head in two axis. Cutter head should be applicated to boring and cutting headstock given to type with posibility of adaptive exchenges spindle.
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Design of spindle for lathe
Sovadina, František ; Marek, Tomáš (referee) ; Pavlík, Jan (advisor)
The thesis deals with the design and construction of headstocks of a turning centre. The aim is to design a spindle with an output of 20 kW and a maximum speed of 5000 1/min. The research part of the thesis is focused on the description of the basic parameters of the headstock and turning centres needed for the construction of the headstock and contains an analysis of the available spindles on the market. The next part of the thesis deals with the selection and calculation of cutting conditions and the necessary parameters. Analytical calculations are then verified using FEM analysis. At the end of the thesis, a 3D model was developed and headstock drawing documentation.
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