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Design of a upright drilling machine
Matoušek, Kamil ; Bilík, Martin (referee) ; Blecha, Petr (advisor)
The subject of this thesis is to propose a design of an upright drilling machine. The upright drilling machine is described in the first part. Research about machines available on the market nowadays is accomplished in the second part of the thesis. Based on this research the parameters of machine are selected in the final part and proposal of the engineering design of an upright drilling machine. Basic construction calculations are made too. The result of this thesis is an assembly drawing and a 3D model of an upright drilling machine.
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Perception of vehicle speed
Hlavinková, Petra ; Dadák, Leo (referee) ; Bilík, Martin (advisor)
The presented master thesis deals with the perception of the speed vehicle crew (not the drivers) in traffic in terms of different aspects, that influencing the feeling while driving in the vehicle. This is primarily about the approximation of factors that may have an impact on the speed. The aim of the thesis is to propose an appropriate methodology of measurement and subsequent evaluation of acquired date, which leads to an improvement in the idea of whether witnesses of traffic accidents are indicative of the speed of the vehicles, at reasonable real speed.
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Design of a Crash-Test Dummy
Sedláčková, Martina ; Coufal, Tomáš (referee) ; Bilík, Martin (advisor)
The main objective of this thesis is construction of crash test dummy for vehicle-pedestrian crash tests. There is review of nowadays used crash test dummies types in the introduction of this thesis. This is followed by part describing construction itself. Chapter about construction begins by characterizing of used materials features in relation with real human body physiology. Main part of chapter is describing construction of crash test dummy’s skeleton and its individual components including 3D modelling and strength analysis. Thesis is finished by cost assessment.
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Modular linear axis
Chlapečka, Tomáš ; Bilík, Martin (referee) ; Pavlík, Jan (advisor)
This thesis contains a structural design of linear axis with a stroke up to 800mm and a maximum load of 800N. The thesis also deals with a modular assembly system of the linear axis based on the structural design. Linear axes can be fitted with rolled, whirled and grinded ball screws with thread pitch 5, 10, 16mm and rolled trapezoidal screws on pitch 4 and 8mm. The stroke of the linear axes can be selected in the range from 200 up to 800 mm, with a maximum load of 800N in all linear dimensions. The feed of linear axis is provided by shaped rolling guide way and four trucks. The modular system offers two servo motors with direct and indirect measuring four stepper engines with indirect measuring. The thesis also includes strength and functional calculations of principal components, graphs of the possible load on linear axis in different positions , durability of the ball screws, maximum speed and feed rate of the chosen screws, data sheet, 3D model, drawings and assembly drawings of the nodes.
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Design of bar-feeder for CNC lathe
Voda, Pavel ; Bilík, Martin (referee) ; Tůma, Jiří (advisor)
The aim of this thesis called Design of bar-feeder for CNC lathe is research about workpiece handling and bar feeders. But the most important aim is design of bar feeder by chosen parameters. The first part of thesis includes description of different types of workpiece handling. The second part is formed by bar feeders description and distribution and possibly construction solution. In the last part is performed choice of parameters for designed bar feeder and design of short bar feeder construction itself.
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Mobile devices for movement in dangerous environment
Bartušek, Jakub ; Pavlík, Jan (referee) ; Bilík, Martin (advisor)
This thesis deals with design of mobile robot for movement in dangerous environment. The first part of this thesis pays attention on area of mobile robot construction, different types of suitable sensors, motion planning algorithms and robot control. Second part is about construction and design of the robot. Motion planning algorithms are used for this robot and tested in enviroment.
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Documentation of Braking Traces Using a Camera
Kopecký, Štěpán ; Bradáč, Albert (referee) ; Bilík, Martin (advisor)
The diploma thesis describes the measurement and evaluation of braking traces in cars equipped by system ABS. The result of the work should contribute to improving the quality of photodocumentation of braking traces. To creating a procedure to eliminate as much as possible the loss of information during tracking documentation.
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Searches press brakes
Volejníček, Martin ; Bilík, Martin (referee) ; Pavlík, Jan (advisor)
The goal of my thesis was to create an integrated classification of press brakes. Introduce advanced press brakes and their basic specifications. Bending is a very common way of forming. Production bent part of a waste-free and economical. Modern hydraulic press brakes allow quick and precise production. Automated bending cells achieve high productivity.
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Drivers reaction time analysis in regular road traffic
Florek, Matej ; Bilík, Martin (referee) ; Belák, Michal (advisor)
This diploma thesis focuses on driver`s reaction time in real road traffic conditions. The reaction time topic foundations are covered in the introduction as well as the motivation and brief application possibilities of the obtained results. The literature review is focused on history of developing different approaches of evaluation and terminology. For complex understanding it provides basic information about perception forms which are important parts of reaction time. The experiment was designed based on past studies review in order to get real data describing reaction time of chosen stimuli. Obtained data were analysed, partially processed values were compared with predicted results based on other researches, than integrated into general values of reaction time.
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Identification of Relevant Tire Traces in Traffic Accident Place Based on their physical characteristics
Bilík, Martin ; Kovanda, Jan (referee) ; Kledus, Robert (referee) ; Bradáč, Albert (advisor)
The thesis deals with the possibilities of identifying the relevant tire traces at the place of a traffic accident based on their physical characteristics. Braking traces on the road are one of the most important objective elements for accident analysis, their easy and accurate detection is very important for accurate accident assessment. With the increasing technical equipment of vehicles, especially with the introduction of newer generations of braking assistance systems, traces left by the tires become almost invisible to the human eye. It is therefore highly desirable that their detection should be not only as accurate as possible but also as easy and fast as possible, not only for forensic experts, but especially for members of the traffic police departments. In line with the development and introduction of new safety and assistance systems for vehicles should also be the development of means and methods of providing the basis for technical analysis of traffic accidents. Reality shows that the procedures, even if still functional, are practically identical for several decades, are dependent on the subjective capabilities of the documenting person. An essential element of the work, compared to the previously described measurement procedures, is the use of modern methods and devices at the highest known level of knowledge. The aim is to find and verify a simple, accurate, subjectively least influenced detecting method for tire traces on the road. A series of measurements confirmed the possibility of using the thermal camera at the technical level usually available at the place of the accident, under limited atmospheric and time conditions. In addition, laser-induced plasma spectroscopy and rLIBS were used. This method of detecting spotless tire treads can be marked as a minimally feasible documentary and at the same time as fast enough, based on the measurements made and the intended removal of defects of the instrument in the development phase of the prototype.
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