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Acoustic insulation of the hydraulic actuator INOVA
Kaščák, Pavol ; Skuhravý, Pavel (referee) ; Klapka, Milan (advisor)
This thesis deals with the design and testing of the acoustic enclosure for the Inova hydraulic actuator. The purpose of this enclosure is the acoustic insulation of the actuator and its parts, to achieve better acoustic conditions when performing acoustic diagnostics on this device. The first part deals with the theoretical basis of acoustic enclosures, the possibilities of modelling of acoustic problems and market research in materials usable for enclosure construction. The second part deals with the analysis of actuator noise and the localization of noise sources in the laboratory. Subsequently, the choice of material and concepts of the acoustic enclosure was made. Then, the final design solution was selected. The final design solution was subjected to acoustic simulations to predict insertion loss and determine the dimensions of the enclosure. The manufactured enclosure was tested in a semi-anechoic chamber and finally on the Inova actuator. Finally, the measurement results and simulation results are compared with each other.
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Mechanical design of experimental collimator
Toman, Ladislav ; Macháček, Ondřej (referee) ; Klapka, Milan (advisor)
The bachelor thesis deals with the mechanical design of the correction collimator, which is used for the axial rotation of the optical assembly, and also with the mechanical design of the device for height positioning of the auxiliary telescope of correction collimator. The bachelor thesis is divided into six main chapters. These chapters deal with the principle of the optical systems functionality, the principle of the correction collimator functionality, there are also mentioned types of correction collimators, there is description of the problem, individual proposals of the two preparations, their analysis, selection of suitable variants and their design solutions. Drawings of individual parts and assemblies are part of the bachelor thesis.
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Design of screw driven lift
Kratochvíl, Michal ; Klapka, Milan (referee) ; Dvořáček, Jiří (advisor)
This bachelor‘s thesis was created in order to create a new engineering design solutions power unit and lifting device of the lifting platform. Due to the rapid wear of the rope and the increasing cosi, it is necessary to modify this design.. In the first part of this thesis is elaborated research dealing with the issue of lifting equipment. After this section, followed by a proposal and the final design solutions. For the solution variant is prepared drawing documentation.
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Construction of vaccine dispenser
Fux, Jan ; Klapka, Milan (referee) ; Dvořáček, Jiří (advisor)
The aim of this thesis is to perform a constructive design of a device for the batching and application of vaccination against rabies in stated size and shape. Vaccines will be dropped from the aircraft and therefore the crucial parameter is the shape and weight of our device. Subsequently, a functionality of this device will be tested. The thesis includes creation of 3D model, drawings of selected components, construction drawing and functional sample photo documentation
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Realization of Educational Problem on Experimental Apparatus for Measurement of Gear Efficiency
Runštuk, Jiří ; Mazůrek, Ivan (referee) ; Klapka, Milan (advisor)
This diploma thesis is focused on the implementation of the educational role of the experimental station for measuring the effectiveness of gears. The proposed laboratory task "Experimental measurement of the effectiveness of gears" is intended to familiarize students with the basic principles of gears and especially highlight the issue of the effectiveness of gears. In this presented thesis, it is also suggested the possibility of expanding the educational use of the experimental station. This extension deals with vibration diagnostics of frequencies of gears.
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Design of rear bumper for passenger car
Tomeš, Jan ; Strecker, Zbyněk (referee) ; Klapka, Milan (advisor)
The Bachelor thesis deals with search about passenger car bumpers. It focuses especially on RCAR crash tests and currently used constructions of bumpers. There is suggested concept of rear bumper based on findings from the search. The concept was modeled on design study of Swell Company’s car.
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Vibration diagnostics of bearings
Navrátil, Pavel ; Mazal, Pavel (referee) ; Klapka, Milan (advisor)
This bachelor’s thesis introduces the basic principles of vibrodiagnostic methods and their importance for individual fase of bearing’s damage. The selected methods studied are: acoustic emission, SPM (shock pulse method), SEE (spectral emission energy), envelope method, High frequency emission, Crest factor, Kurtosis factor and special method for slow-motion machines Adash Compressed Time.
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ECU controlled car systems
Kadlec, Martin ; Klapka, Milan (referee) ; Strecker, Zbyněk (advisor)
The aim of bachelor thesis is to give an overview of the state of knowledge in the field of controlled car systems and to estimate development in the future. The first part describes the basic terms in the field of exist problems. In the next part are detailed analysis of systems with their allocation and definition.
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Engineering design of the hydraulic press for bearings for bikes
Vichr, Tomáš ; Brandejs, Jan (referee) ; Klapka, Milan (advisor)
This bachelor thesis concerns design of a bearing replacement device in the motorcycles wheels. The aim was to develop an affordable and reliable home appliance. In general research are defined the imperfections of commonly available devices on the market. Based on that are designed three conceptual proposals as a solution of these problems. The most suitable one is chosen and the critical crucial points are verified as well as the production price.
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Design of machining process diagnostic system
Wolf, Jonatan ; Klapka, Milan (referee) ; Houfek, Lubomír (advisor)
The master’s thesis is focused on online diagnostics of the machining process. In the theoretical part are presented maintenance possibilities of machine tools. A whole chapter is devoted to vibrodiagnostics, which describes vibration sensors, their attachment to the measured object and methods of vibration signal processing. The practical part lies in creating a software diagnostic solution for chosen PLC and sensors. The functionality of the proposed system was verified during experimental machining, which also provided valuable data for the correct setting of the system.
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