National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Hydrostatic bearings for wind energetics
Procházka, Michal ; Foltýn, Jan (referee) ; Michalec, Michal (advisor)
This bachelor thesis deals with the bearing of the main rotor shaft of a wind turbine using hydrostatic bearings. Wind turbines come in many designs and the thesis then determine the operating parameters and bearings used in horizontal axis turbines of different installed power outputs. Currently, repairs, as well as servicing of bearings, are very costly and affect the operation of the entire power plant. Hydrostatic bearings offer advantages that could reduce the failure rate of wind turbine bearings. The operating parameters of turbines of different outputs were used to calculate the selected hydrostatic bearings. The results shows that the use of this type of bearings is possible for turbines with different power outputs, but higher efficiency is estimated for larger turbines (for example 8 MW turbine). The energy consumption of bearing, required to drive the hydrostatic bearings, reaches 0,03 % of the total output, compared to 0,39 % for the smaller 55 kW turbine. The calculation has been simplified in the initial energy performance estimation and further steps could include bearing geometry optimization or extending the operating parameter range of the wind turbines.
Vývoj sociální péče a formy vzdělávaní seniorů v ČR
Foltýn, Jan
The presented work deals with the issue of life of seniors in the Czech Republic. There are a number of changes associated with aging that affect an individual's quality of life. These are physical, psychological and social changes that manifest themselves in all areas of an individual's life. Probably the biggest change is retirement, which is accompanied by the search for a new meaning of life. The opportunity to study can help in this regard. Seniors can use a variety of forms of further education. However, they most often look for educational activities carried out within universities of the third age. In the presented work, the relationship between the quality of life of seniors and education within U3V will be determined. For this purpose, the data of the Czech Statistical Office concerning the quality of life of seniors will be analysed and a questionnaire survey among seniors will be carried out. The aim will be to find out the difference between perception of the quality of life of seniors attending universities of the third age and seniors who do not study at the universities of the third age.
Design of clamping device for mass production on CNC milling machine
Blahuta, Jiří ; Foltýn, Jan (referee) ; Svoboda, Petr (advisor)
This bachelor thesis deals with a design of a milling fixture and a fixture for broaching on a press. The fixtures enable progressive production on a CNC machine with a high efficiency and minimal downtime. The fixtures are designed for a serial production of a specific component in automotive industry with quantity of 250 000 units per year. The main goal and partial goals of the thesis were accomplished. The designed milling fixture uses wedge clamps and hydraulic cylinders for clamping. The broaching fixture uses springs to position the workpiece. The design of proposed fixtures was verified by production capacity calculations, which prove that the series will be produced in a required time. To further increase productivity, it was suggested based on calculations to use five milling fixtures in the milling machine. The design of the broaching fixture was verified by FEM simulation, which showed that the device is sufficiently rigid and strong. The result of the work is a design of two fixtures in the form of 3D models and drawings. The work includes, among other things, research of three-axis CNC milling machines, broaching machines, and wrought aluminium alloys.
Design of hydrostatic bearing for theater turntable
Foltýn, Jan ; Robenek, Dětřich (referee) ; Svoboda, Petr (advisor)
This thesis deals with the issue of hydrostatic bearings. The aim was to design a test rig for an axial hydrostatic bearing. The axial hydrostatic bearing was calculated and designed with respect to the function of the tester. The construction of the test equipment was further supported by calculations of the main parts together with FEM analyses. The design was also accompanied by an introduction to the hydraulic parts of the hydrostatic bearing, which took place in consultation with Bosch Rexroth. The aim of the work, the design of a test device in a scale of 1:10, was completed. The following results from hydrostatic bearing tests will allow the introduction of new procedures in the production of turntables mounted on a hydrostatic bearing. Examination of operating conditions and permissible assembly inaccuracies will make it possible to reduce the production requirements for bearing mounting.
Business Strategy of Company
Foltýn, Jan ; Schüller, David (referee) ; Zich, Robert (advisor)
Diploma thesis deals with the topic of strategic management of business development with the aim of proposing a suitable modification of the business strategy for a company operating on the European heating market. The work aims to propose a change in the existing business strategy, using an enhanced marketing mix in the given B2B market, which differentiates the product portfolio from other competitors in the market, uses innovative technologies and is competitive, focused on customers.
Design of clamping device for machining of manifold part
Foltýn, Jan ; Mazal, Pavel (referee) ; Svoboda, Petr (advisor)
This thesis deals with clamping fixtures. It aims to design an effective clamping solution for machining parts on a milling machine. The clamping solution was designed and then verified by a series of calculations. The main goal and partial objectives were fulfilled. The output is the design of fixture, which can clamp given part. Subsequently, based on the calculations it was decided to use four of these fixtures on one machining table. When calculating the appropriate variation of the fixture layout, an estimate of the time required for the operations performed by the machine operator was made. The thesis offers an overview of the materials used in the automotive industry. Furthermore, the study of clamps and clamping systems. It also touches the problem of optimizing manufacturing process and demand for ways to speed up the manufacturing process.

See also: similar author names
2 Foltýn, Jakub
3 Foltýn, Jiří