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Axle Assessment Using the EUSAMA Methodology
Novák, Petr ; Gajdoš, Petr (referee) ; Mazůrek, Ivan (advisor)
Bachelor thesis deals with problems about areas of a non-assembling diagnostics according to an EUSAMA methodology. Result of the methodology is a technical condition examination of dampers. However with regard to testing of whole suspension and damping vehicle system are results distorted by influence of other vehicle components. EUSAMA needed improvements because of new super light city vehicles and vehicles with runflat tires. Goal of thesis is addition criterion for the EUSAMA which can be used in current EUSAMA suspension testers. Problems are solved by a virtual simulation where is created a model of real vehicle FIAT 500.
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Axle assessment using the EUSAMA methodology
Vítek, Lukáš ; Roupec, Jakub (referee) ; Mazůrek, Ivan (advisor)
This bachaleor thesis deals with optimalization of axle assessment. The introduction is directed to description shock absorber, non-assembling diagnostics and dynamics of vehicles. The automotive suspension is meant to provide comfort and mainly safety for the passengers. Because shock absorber are stressed, it must be controled. The most important kind of non-assembling diagnostics for this thesis is EUSAMA methodology. All measurement are realized with resonant adhesive tester, which is named TriTec. This device is structural simpler, then other one.
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Shock Absorber for Generating of Electrical Energy
Maťaš, Marek ; Vetiška, Jan (referee) ; Hadaš, Zdeněk (advisor)
This these is considering with possibilities of generation of electric energy, with use of linear generator in automotive industry, that linear generator is replacing shock absorber. Subsequently the base model of shock absorber is used and excited with sinus signal. From this simulations are got the results of damping and power. Then it will be made a simulation of shock absorber, with known parameters of damping, mass of vehicle and real model of road. Then it is made control with PID regulator.
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Simulation modeling of a vibration absorber
Kukačka, Radek ; Vetiška, Jan (referee) ; Březina, Lukáš (advisor)
The bachelor thesis gives an overview of different design solutions to car shock absorbers. The rest of the thesis describes a simplified model of passive shock absorber and its optimization. The survey contains shock absorbers used in the present. There are various passive telescopic dampers and modern semi active and active electronically controlled damping systems. The second part includes several simplified models of passive dampers. There is described an optimization of the damper parameters with respect to the displacement of the primary mass for each of the models.
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Conception of ATV (all-terrain vehicles)
Dosedla, Milan ; Vančura, Jan (referee) ; Porteš, Petr (advisor)
This thesis is review article of the current design and construction setup of ATVs. In the individual chapters are analyzed function of structural units and their advantages and disadvantages for the application. Much attention is paid to the design and construction of the brakes and axles. Work based on the analysis 30 models of ATVs from different manufacturers. This thesis reports the specifications of selected models. In conclusion we discuss the appropriateness of design solutions for different types of ATVs such as utility or sport models.
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Reconstruktion of shock absorber test rig
Smejkal, David ; Strecker, Zbyněk (referee) ; Mazůrek, Ivan (advisor)
This bachelor thesis is focused on the reconstruction of shock absorber test rig which is placed in the laboratory of Machine and Industrial Design. The introduction deals with the basic description of particular dampers. There are also analyzed the dismantling and non-dismantling testers that serve for testing of dampers. Several special testers and testing devices are listed in this paper. There is a thorough division and description of dismantling testers. In the following chapters are mentioned various kinds of software used in the testing device for simulation of operating conditions. A special attention has been paid to the analysis of the function of hydraulic servo valve. The last chapter of this part is devoted to the description of the existing tester at UK and the advantages of a hydraulic tester comparing to the mechanical one. In the practical part of my Bachelor work are suggested several reconstruction options of the above mentioned tester. Subsequently the alternations that best meet requirements of simplicity and cost-effectiveness are chosen.
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Adjustable crank mechanism for shock absorber testing rig.
Podhorský, Petr ; Číž, Petr (referee) ; Mazůrek, Ivan (advisor)
This bechelor thesis deals with redesing of the mechanical shock absorber tester, which is situated in laboratory of designed department. First part focuses on the principle of shock absorbers and division. Next is something about devices, which are used to testing the shock absorbers. Because these equipments are a wealth of species, work is focusing on the devices, which tests excluded shock absorber only. The next part describes a few variants reconstruction of referenced tester. After that is chosen variant, which is the most simple, economic and production simple. This variant is after that numerically checked. In the end is educt, which describe the tester redesign.
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Vibration damper development and innovation of a laboratory stand
Filipi, Jaroslav ; Mazůrek, Ivan (referee) ; Nevrlý, Josef (advisor)
Bachelor work deals with description and functionality of vibration dampers. Since the vibration dampers is a wealth of species, work is focusing on the dampers used in cars known as shock absorbers suspension. I have described conventional shock absorbers suspension and modern shock absorbers suspension. Furthermore, I described active chassis. High-quality equipment is very important for the future development of dampers. I propose possible ways of innovation existing laboratory stand.
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