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Animation of force relations on power screw
Jonáš, Tom ; Klapka, Milan (referee) ; Hartl, Martin (advisor)
The bachelor thesis deals with creating animations in program Cinema 4D. The animations show what forces are generated during nut movements along the moving bolt, also show self-locking conditions and geometry between forces. These animations will be used for educational purposes for students, for a better understanding of the issue, and for a better idea of spatial distribution of forces. The thesis describes the software environment and the process of creating particular animations.
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Transmission mechanisms of autocross racing cars
Bárta, Jiří ; Klapka, Milan (referee) ; Mazůrek, Ivan (advisor)
This Bachelor's thesis is special technical search with concentration on creating of overview drive conceptions and transmission mechanisms at autocross racing cars. As the basis of the information there was processed the proposal of conception drive double engine arrangement for class 1.600 ccm. The whole thesis is comleted with photo-documentation of racing special cars and with their parts.
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Engineering design of the mobile acoustic shielding
Rakhmatullin, Artem ; Nohál, Libor (referee) ; Klapka, Milan (advisor)
This bachelor thesis deals with the problem of improving the environment for measurement using variable elements with acoustic insulation. The aim was to design several variants of acoustic shields and choose the best according to the specific requirements described in the work. We have calculated a specific theoretical estimate of attenuation from values reported from different manufacturers. The designed structure can be used to shield unwanted sources of ambient noise.
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The design of hydraulic shock tester load frame.
Jícha, Martin ; Dočkal, Aleš (referee) ; Klapka, Milan (advisor)
The aim of this thesis is to design solution of load frame, which will be used with built-in hydropuls actuator for testing and diagnosis of diverted road vehicle suspension dampers. The work contains a brief description of the hydropuls technology principle , description of the main components and specific description of several commercially available devices, including their control systems. The next part of thesis is focused on examine of achal design. A complete design documentation is attached to the work.
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Steward Platform for Vibration and Shock Isolation
Švábík, Roman ; Klapka, Milan (referee) ; Mazůrek, Ivan (advisor)
The Bachelor thesis deals with engineering design of a test stand used particularly for testing of vibroisolation properties of Stewart plaform of space launch vehicle. The thesis contains a brief summary of vibroisolation systems, construction requirements for a test stand, design of construction variations and the drawing documentation.
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Analysis of the effect of friction modifiers composition on adhesion and noise in rail transport
Suchomel, Ondřej ; Galas, Radovan (referee) ; Klapka, Milan (advisor)
The aim of this bachelor thesis is experimental study of influence of composition of water based friction modifier on adhesion and sound pressure level. Experiments are carried out on twin-disk device. Introductory experiments are conducted to determine the conditions for further experiments. The experiments of the individual components follow, and the various friction modifier compositions are tested. From the results, it is obvious that a significant influence on the reduction of adhesion coefficient and sound pressure level has solid lubricant.
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Methodology for remote diagnostic of the automotive shock absorbers
Halama, Jakub ; Dočkal, Aleš (referee) ; Klapka, Milan (advisor)
The diploma thesis deals with the application of acoustic methods for evaluating the technical condition of the shock absorbers. Analysis of acoustic radiation during damping operation leads to the definition of a new non-contact diagnostic methodology that can determine the condition of the shock absorbers. The first part of the thesis focuses on the noise radiation of the shock absorbers, which is caused by discontinuous dumping. Further, the methods for the noise source localization available at The Institute of Machine and Industrial Design are described – with their functionalities, advantages and limitations. Based on all the information, an appropriate method is selected and used in the experimental part of this work. Then, aeration and removing the full volume of oil with damage of the shock absorber tube are caused (induced) on several types of the shocks. Noise radiation is measured by a microphone array and by a sound meter; the acoustic maps, frequency spectra and the synchronous filtration graphs are calculated from the measured data. From the differences in the acoustic radiations of each shock condition, a suitable diagnostic criterion for a specific shock absorber is defined. The final part discusses obtained results. Based on these results, a general diagnostic methodology, applicable to any type of shock absorber, is formulated.
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Design of portable microphone array
Vazovan, Ľubomír ; Kubík, Michal (referee) ; Klapka, Milan (advisor)
The subject of this thesis is the structural design of portable five-arms microphone array to localize noise sources, which is using to beamforming techniques. The aim of the work is to design a simple and easy mechanical construction. Part of the work is the solution to connect the measurement microphone to the construction field. The first part is devoted to the theory of beamforming, design the microphone array for beamforming and offered an overview of plane mic fields. The next part of my work is drafting the proposals selected nodes from which you select a specific design. In conclusion I evaluate the economics of construction.
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Train seat of the future
Torčík, Václav ; Klapka, Milan (referee) ; Dvořáček, Jiří (advisor)
For my bachelor's thesis, I designed a seat to be used by students in public transportation vehicles. The goal is a constructional concept which fulfills the specified parameters. Part of the thesis involves a questionnaire. Research includes the historical evolution of train transportation, technical requirements and ergonomy. A concept and model were based on results of the research. Manufacturing drawings of selected parts of the seat are in the annex or the thesis.
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