This master’s thesis deals with changing the geometry of the output section of the impeller of the radial centrifugal pumps and its influence on the characteristics of the pump. In engineering practice for these radial centrifugal pumps it is possible to change the parameters based on the requirements. This adaptation of parameters is called impeller trimming. Impeller trimming means the reduction of the impeller diameter thereby decreasing the flow, head and efficiency. Existing equations for calculating the changes in the characteristics of the impeller trimming are inaccurate. In this thesis is describes a possible method of putting for the recalculation characteristics of a pump based on the impeller diameter on the available characteristics of pumps.

This master's thesis is about the possibilities of NC programming of car wheel hub component in software SinuTrain 4.7. The theoretical part is focused on the integration of the SINUMERIK 840D control system with other control systems, it contains informations about basic methods of NC programming and research relate to the field of materials used for the production of component. The practical part of the thesis includes the design and processing of technical documentation of the component, production technology and NC program. The output of this thesis is practical verified the function of the NC program by simulation in software SinuTrain 4.7.

I decided to involve new bicycle stand in cooperation with Czech street furniture company mmcité. My point is to design bicycle stand, which is useful with materials and construction, which is not expensive and has easy production. I tried to respect shape and function of bicycle and design bicycle stand with ideal fixation and good lockout. There are three basic versions depending on number of parked bikes.

Work tackles the general design systems of automatic control of engine power and braking effects so that avoid any unnecessary dangerous situations and to improve the driving characteristics and suppression causes of accident due to bad decisions of driver. Is required to propose a general system based on the draft sensors and control circuits, their relationships, design control processor, which will be without the knowledge of the driver intervene in driving motorcycle.

This thesis deals with the structural design of front wheel hub of Formula Student the car categories in the CAD system. It includes comparison to proposal design of the hubs, different concept of wheel-seat and wheel suspension of a formula cars and a motor-cars. There is described a few version of design front wheel carrier. The first step is proposed assembly wheel of Formula Student and the next step is realized analytic simulation a stress by FEM of the front wheel carrier and his construction modifications.

The subject of this master's thesis is design measurement and measure change wheel camber angle during driving. For this task were used parts from Corrsys-Datron and remaining elements needed to be manufactured. With complete system measurements were done and outputs data were displayed by Matlab and evaluated. Based on data evaluation is possible exactly determine relative position of the wheel to the road surface and to the body of vehicle.

Friction modifiers are a new effective way to control adhesion in wheel and rail contact. The aim of this diploma thesis is experimental study of the influence of the constituents of water based friction modifier on adhesion. Measurement of the adhesion behavior for different friction modifier compositions is carried out on a ball–on–disc laboratory device creating point contact. The introductory part of the experiments describes the effect of individual components on adhesion. Subsequently, combinations of different friction modifier compositions are tested. In conclusion, selected compositions are used for wear tests. The results obtained show that the performance of friction modifiers is greatly influenced by evaporation of base medium.

The submitted master’s thesis describes the development of a tribometer used to measure the adhesion of a real rail. The thesis contains an overview of the basic terms concerning wheel and rail contact. Following that, there is an overview of devicesthat are able to measure the adhesion on a real track. The author's solution includes a design of the tribometer, the proposed measurement methodology and also a description of the individual components. The result of this thesis is a functional device, verified in laboratory conditions and on a real track.

Intermetallic alloys gama TiAl are prospective materials of future thanks its excellent machanical qualities and low density. However this alloy clash with for wider expansion to the practice on burdensomeness production and processing. Among disavantages belongs to also her bad fluidity. The diploma work is angaged in possibilities imporing fluidity alloys TiAl by the help of centrifuge casting. Casting healthy casts was achieved in experimental part.

For dimensions of crankshaft drive Zetor engine, which is solve by a helical gear drive will be created a dynamic model in MBS (multi body system) and perform analyses. The same way will be created a dynamic model for a spur gear system. In conclusion will be confrontation both of these drive solutions.