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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Analýza jízdních manévrů vozidel za snížené adheze / Analysis of vehicles driving maneuvers at low coefficient of adhesion

Šabík, 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.
12

Analýza vzniku blokovacích stop v závislosti na zpomalení vozidla / Braking marks creation analysis in dependence of vehicle deceleration

Svoboda, Lukáš January 2021 (has links)
The work is divided into two parts – theoretical and practical. The first, theoretical part is focused on introduction with the problematics, describing the concept of translation motion and brake physics, defining terms adhesion and friction, skid, driving resistances, calculation formulas etc. After the mechanics chapter follows the chapter about tire and its composition and properties, and a brake system chapter, describing Anti-lock brake system (ABS) and some other important brake-support systems. Second part of this thesis is focused on practical side, which contains acceleration measuring and skid marks creation, followed by evaluation of measured data in form of calculations and graphs.
13

Průmyslová hala / Industrial hall

Forman, Radek January 2012 (has links)
Two-bay hall for warehouse and manufacturing purposes with supporting steel structure and thermally insulating sheating with width of 36 metres and lenght of 72 metres. The hall incorporates two overhead cranes with maximum load of 32 and 40 tonnes. The main supporting structure is a system of plate girders and beams. The beams are connected with hinges and are placed with intervals of 6 metres. The hall design is intended for 1st snowing area
14

Analýza brzdění vozidla s nestandardním zásahem do brzdové soustavy / Analysis of Non-Standard Braking Intervention into the Brake System

Kortán, Daniel January 2017 (has links)
This master’s thesis focused on the issue of the possible conversion of liquid brake systems, in the form of replacement of wheel brakes. The first part focused on the function and description of the construction of different types of brakes. The second part is focused on description the types of brake system testing and the regulations regarding brake systems. The last part focused on the measurement of both vehicles and comparison of the results with the calculations.
15

Vliv defektu pneumatiky na jízdní dynamiku vozidla / Influence of Tyre Defect on the Driving Dynamics of a Vehicle

Kubík, Adam January 2014 (has links)
In this thesis, an effect of a tyre defect on the driving dynamics of a vehicle is dealt with. The first part of the thesis is mainly concerned with the vehicle dynamics, road resistance, adhesion, orientation characteristics of the tyres and slowing down. This chapter is followed by an overview of the manufacturing process and construction of modern passenger car tyres. The practical part is focused on driving tests that are used to demonstrate the influence of tyre defects on handling characteristics of the vehicle. The main focus of this thesis is on directional variation, braking distance, deceleration and lateral acceleration. The very end of the thesis concentrates on tyre defect in higher speeds and its after-effects as well as precautions for mitigation of these after-effects.

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