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Metody stanovení hydraulických parametrů rázových vln v souvislosti s provozem MVE / Estimation of hydraulic parameters of surge waves caused by the small hydropower plants operationBrůžek, Jan January 2015 (has links)
The objective of this thesis is verifying estimation of hydraulic parameters of surge waves and compare the possibility to use software in assesing the surge waves caused by small hydropower plants operation. The study is divided to several parts which includederivation of analytic solution, description of numerical solution, verification of selected estimations and aplication on real example.
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Analýza akcelerační a decelerační charakteristiky vozidla / Analysis of acceleration and deceleration characteristics of the vehicleTreschl, Jakub January 2017 (has links)
This master's thesis designs acceleration and deceleration measurement method by a test drive. It contains also measurement realisation, design of the computational model and acquired data analysis and evaluation.
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Vliv zatížení nákladních vozidel na jejich dosažitelné zpomalení / Influence of heavy vehicle load to the vehicle decelerationJirásková, Iveta January 2020 (has links)
The diploma thesis deals with the issue of braking trucks at different loads. The theoretical part defines the basic construction of trucks, truck brakes, the braking process and the factors that affect braking, braking deceleration, and legislative requirements for truck brakes. The practical part describes the course of experimental measurements, the use of the technique, the place of measurement, atmospheric conditions and used trucks. At the end of the work, based on experimental measurements, the obtained values of braking deceleration of trucks are evaluated.
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Analýza vybraných manévrů cyklistů / Analysis of Selected Manoeuvres of BicyclistsŠpačková, Kateřina January 2021 (has links)
This diploma thesis Analysis of selected manoeuvres of bicyclists deals with the history and development of the bicycles, further their division of, construction, analysis accident and national legislation in the theoretical part. The practical part of the master thesis is devoted to the measurements of the bicycles. Specifically, it is about acceleration, deceleration, transverse movement, ride in the curve and looking back before changing the direction. For measuring are selected different type of bikes with different construction. The results of individual measurements are evaluated in the end of the diploma thesis.
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Simulátor pro ověření funkce bezpečnostních pásů / Simulator for check of seat belts functionNeuwirth, Zdeněk January 2009 (has links)
Thesis is oriented on project construction universal apparatus for introduction and research effects deceleration and impact with possibility setting initial velocity. Basic application proposed test station is crash simulation for diagnostic safety belts. At first there're in work presented physical value that describe action in progress at impact, further safety belts, their testing and test . Considerable volume of work is devoted to project actuation, system obstruction kinetic energy and basic construction. Subsequently is presented proposed construction and performed strenght calculation. In the end there are summarized basic characteristics proposed construction, short financial opinion, process of installation and safety rules for using this equipment.
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Vliv okamžité hmotnosti vozidel na jejich brzdnou dráhu / Impact of the Instantaneous Weight of Vehicles on their Stopping DistanceMotl, Jakub January 2010 (has links)
This diploma thesis is engaged in analysis of braking process of vehicles, especially heavy utility vehicles, with regard to their instantaneous weight. This thesis features survey and division of braking systems and function of brakes including schemes and descriptions. Also there is introduce of some systems improving vehicle properties. Furthermore this work puts mind to possibilities of examination of brakes, measurement of braking distance and braking retardation namely in brake test rooms or by outdoor driving tests including descriptions of particular methods and equipment. There is also mention about legislative requirements for braking distance and braking retardation. The conclusion of this thesis compares numerically predicted braking distance and real braking distance measured for factual vehicle during outdoor driving test
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Analýza rychlosti cyklistů ve věkové kategorii 10 až 15 let / Analysis of the Speed of Cyclists Aged from 10 to 15 YearsValentová, Hana January 2012 (has links)
The thesis is concerned with an analysis of speed of bicyclists in age between 10 and 15 years. The thesis examines differences in construction of children's bikes, describes relationship between a child and a bicycle, messures size of children's bikes and characterizes the procedure during an analysis of bike accidents. Internal parts of the thesis are statistical data from accident frequency and summarizing of actual state of understanding of following problems in this age category. The main purpose of this thesis is to make an analysis of speed for individual age categories and make an evaluation of results. This measurement will be completed by a measure of achievable brake deceleration of riders in age between 10 and 15 years. The purpose of this final thesis is an expansion of data for a forensic expertise in area of Traffic.
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Vliv hloubky dezénové drážky na dosažitelné zpomalení vozidla / Influence of tread grooves depth on achievable vehicle decelerationKejíková, Barbora January 2016 (has links)
This thesis is devoted on passenger car tyres. Theoretical part covers description of production, construction and tyre parameters. Practical part is comprised experimental measurement of influence of tread grooves depth on achievable vehicle deceleration. First, it is focused on preparation conditions of measurement, with subsequent processing and evaluation of the data obtained.
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Analýza jízdních manévrů vozidel za snížené adheze / Analysis of vehicles driving maneuvers at low coefficient of adhesionŠabík, Matúš January 2016 (has links)
This master’s thesis deals with driving maneuvers at low coefficient of adhesion, especially in winter season. It includes a list of adhesion coefficients on many surfaces, published by various authors. Figures were through the use of statistical methods divided into normal and exceeding. There are described terms having impact on adhesion. For determination of adhesion was used tests like emergency braking, circle test and slalom. The major part contains specification of used vehicles, surfaces, weather conditions, measuring devices and realized tests. In addition to using accelerometer, there was a successful attempt to use timekeeping facilities to determine deceleration of vehicle. Acquired data were processed and compared to another publications.
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Měření zpomalení nákladních automobilů nad 12 tun při brzdění motorem / Measuring of deceleration of heavy goods vehicles (greater than 12 tonnes) when slowing down using the motorSüttő, Daniel January 2016 (has links)
This thesis is dealing with measuring the deceleration of lorries when they are braked by the engine. The weight of the vehicles given is bigger than 12 tons. The thesis can be divided into theoretical and practical part. In the theoretical part there are special presumptions to manage the given problem successfully. The stress is on the construction of lorries and on driving resistances which influence the process of deceleration a lot. The thesis also analyses the technical solution of each possibilities of braking and also the function of the gearbox. In the practical part the method of measuring is described. The measurement devices are also given through which the measurements were realized. The main part of this work is made by measured values of each lorries and the interpretation of measured values itself. The final evaluation of measured data are mentioned at the end of the thesis.
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