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Design of actuators for the butterfly safety valve
Melecký, Josef ; Halfar, Jiří (referee) ; Ripel, Tomáš (advisor)
The bachelor s thesis desribes desing of actuator and safety mechanism for a butterfly safety valve. Based on research mentioned in the introduction was chosen type of actuator, whose particular parameters come out of moment proportions calculated according to concrete requests of external firm. Another part of the thesis concerns design of safety mechanism for critical status. In the final part of the thesis parameters of design actuator system are stated, focusing on kinematics motion of the butterfly valve.
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Determination of sound source orientation from multichannel audiosignal
Sumtsov, Artem ; Ripel, Tomáš (referee) ; Krejsa, Jiří (advisor)
The goal of this thesis was a research on appropriate methods of determination of sound source orientation and consequently its processing. This thesis describes subsequently four methonds of determination of signal delays between different channels. Each of these methods is evaluated with respect to suitability, usability, error rate and sensibility. In the next part the geometrical model for determination of the sound source orientation is described. Experimental solutions are processed for the situation with three microphones. Calculations are done in Matlab.
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Design of conveyor of couplers
Klár, Pavel ; Ripel, Tomáš (referee) ; Krejsa, Jiří (advisor)
This thesis is focused on the design of conveyor of couplers with regard to the requirements for the resolution, and consisting of several parts. The first part outlines the given issue, short research study and an idea of solution. The next part concentrates on the structural design of the whole conveyor. Then the description of the first part of the conveyor including the structural design and the required calculations follow. Finally, other conveyor parts, the budget and the instruction manual are explained. The thesis includes the related drawings and all necessary calculations for other conveyors parts as well.
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Usability of compass in indoor mobile robot navigation
Pilch, Petr ; Ripel, Tomáš (referee) ; Krejsa, Jiří (advisor)
This work is focused on usability of compass HMC6343 for controlling the mobile robot in an indoor environment. The first part shows the history of compass and describes the principle of operation of some types of compasses including anisotropic magnetoresistive sensor. HMC6343 compass used for the measurements in real environment is based on this principle. The measurement is evaluated and the usability of data gathered this way is discussed the second part of the thesis.
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Vibration of rolling bearing
Otoupalík, Jan ; Ripel, Tomáš (referee) ; Krejsa, Jiří (advisor)
The thesis deals with vibrations caused by geometric defect and fatigue damage of rolling element bearing. Hardware for vibration measurement is tested on 25 new pieces of NJ 304. Second part of the thesis examines if measuring of bearing vibration can help to detect a geometric defect. Geometric defects are detected according to a spectrum of vibration but the results are not absolutely exact. The possibility to detect geometric defects by measuring vibration has not been proven. The end of project tests diagnostic methods for rolling element bearings. The bearing defect was simulated to demonstrate bearing failure frequencies, envelope method and vibration spectrum.
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Design of transport mechanism for the stationary robot
Kříž, Pavel ; Vejlupek, Josef (referee) ; Ripel, Tomáš (advisor)
This bachelor's thesis describes design of the transport mechanism for the autonomous robot. The main aim is modification of the chassis and design of the control mechanism. The designed concept comes out of requirements assigned by external company. It also includes the list and description of various considered concepts. The final construction variant is divided into several construction sections described in the thesis. The check calculation of potentially critical part is specified in the final part. The result is design of the transport mechanism for the stationary robot which serves as multifunctional kiosk.
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Mechanical design and realization of the concurrent magazine for yarn
Klusoň, Vladimír ; Ripel, Tomáš (referee) ; Vejlupek, Josef (advisor)
This thesis deals with a Temporaryyarn storage device for yarn produced on an industrial loom. The Temporaryyarn storage contains a driven storage drum with a rotational yarn compensor. The driven rotating storage device is coupled with the first drive supplied by an electrical motor, and the rotational compensor is coupled with a second drive- also an electrical motor. The described Temporaryyarn storage can effectively increase the level of automation of an industrial loom.
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Design and realization of wheeled mobile robot
Ripel, Tomáš ; Singule, Vladislav (referee) ; Krejsa, Jiří (advisor)
The bachelor's thesis describe the design and construction of chassis for autonomous mobile robot and its realization, in particular the design of frame with drives and steering. Proposed solution is partly based on the rules of Robotour competition, but the final design can serve as a platform for another applications. The design part describes the function of particular elements the construction nodes consist of. The selection and basic calculation of drives and details of implementation are also included. Functional platform for autonomous robot Bender II represent the final result of this work. Some problems which occurred during realization were fixed after testing. Construction proved its reliability even in poor conditions.
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